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features ? radiation toleran t space dc-dc converter - single event ef fects (see) let performance to 86 mev cm 2 /mg - t otal ionizing dose (tid) guaranteed per mil-std-883 method 1019, radiation hardness assurance (rha) p = 30 krad(si), l = 50 krad(si), r = 100 krad(si) - 50 - 300 rad(si)/sec dose rate (condition a) - 10 mrad(si)/sec dose rate (condition d) ? built in mil-std-461 emi filter ? output trim from 51% to 124% of nominal ? operating temperature -55 to +125c ? qualified to mil-prf-38534 class h and k ? input voltage range 19 to 56 volts ? t ransient protection 80 volts for 120 ms ? fully isolated, 5 port isolation ? dual magnetic feedback ? fixed high frequency switching ? remote sense ? inhibit function ? synchronization input ? indefinite short circuit protection ? meets mil-std-704a transient standards description the interpoint ? smr t series? of dc-dc converters of fers up to 35 watts of power in a radiatio n tolerant design. the low profile smr t converters are manufactured in our fully certified and qualified mil-prf-38534 production facility and packaged in hermetically sealed steel cases. they are ideal for use in programs requiri ng high reliabilit y, small size, and high levels of radiation hardne ss assurance. the smr t converters are switching regulators which use a two-phase, phase shifted flyback design with a nominal switching frequency of 300 khz. close regulation is maintained with advanced constant frequency pulse width modulation design techniques. the smr ts feed-forward compensation and discontinuous topologies provide high levels of input-to-output ripple rejection. see figure 10 on page 29, figure 29 and figure 30 on page 33 and figure 45 and figure 46 on page 36. t wo independen t feedback loops are used to regulate the dual and triple outputs, one feedback loop regulates the two-phased single output. each set of outputs is electrically isolated from the other and from the input. this product configuration eliminates cross regulation ef fects between output sets. configurations: ? single output: one dual-phase output ? dual output: t wo isolated single-phase outputs ? t riple output: one single-phased output (main) isolated from one single-phase dual output ( auxiliary) models o utput v oltage (v) single dual triple 3.3 vout a 5 v, vout b 5 v +3.3 & 12 5 vout a 12 v, vout b 12 v +3.3 & 15 8.7 vout a 15 v, vout b 15 v +5 & 7 12 +5 & 12 15 +5 & 15 s m rt s ingle, d ual and t riple s pace dc - dc c onverters page 1 of 44 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions crane aerospace & electronics power solutions C interpoint products 10301 willows rd. ne, redmond, wa 98052 +1 425-882-3100 ? power@crane-eg.com www.craneae.com/interpoint
u nder vo ltage l ockout the converters have an undervoltage lockout that will allow power conversio n at approximat ely 17 volts on a rising input voltage and a conversion shut-down on a falling voltage at approximately 14.5 volts. i nhibit f unction the smr t series incorporates an inhibit terminal that can be used to disable internal switching. it is not recommended to tie the inhibit pin of an smr t directly to the inhibit pin of another converter as the smr t inhibit pin can sink current. when pulling multiple inhibit signals low , a separate interface is recommended for each smr t. the converter is inhibited when the inhibit pin is pulled low (0.4 v). in the inhib it mode the inhibit pin current requirement is less than ~2 ma. the converter resumes normal operation when an open circuit is applied to the inhibit pin or the inhibit pin is open (unconnected). the open circuit voltage of the inhibit pin is 5 to 6 volts. t o enab le the converter use an open collector on the inhibit pin or leave it unconnected. s ynchroni zation the sync input pin is isolated which allows sync return pin to be tied to the primary side, secondary side, or float with respect to all inputs and outputs. input current into this pin is limited by a series 1 k ohm resistance. r adi ation t olerance the smr t dc-dc converters are designed to provide continuous normal operation through radiati on levels associated with space missions and in tactical and strategic military environments. the rha level r converters will operate normally in radiation environments with up to 100 krad(si) total dose and will not exhibit low dose rate (ldr) ef fects at 10 mrad(si)/sec dose rate up to a tid of 100 krad. these levels of radiation tolerance make the smr t converters suitable for electronics in programs where operation in high radiation environ ments is require d. s creening smrt converters of fer screening options to space prototype (o), class h or k and radiation hardness assurance (rha) levels p - 30 krad(si), l - 50 krad(si) or r - 100 krad(si). single event ef fects (see) let performance to 86 mev cm 2 /mg. see t able 27 and t able 28 for more information. e mi the smr t has a built-in emi input filter which brings the conducted emissions into compliance with both methods of mil-std-461, revisions c-ce03 and d-/e-/f-ce102. e lectros tatic d ischarge ( esd ) s ensitivity per mil-prf-38534, the smr t series converters are rated to esd class 3b defined as sensitivity equal to, or greater than, 8000 volts. s ense tight load regulation is maintained via wide bandwidth magnetic feedback and through the use of remote sense on single output models and v out a on dual output models. the sense pin function allows a remote connection for the voltage regulation circuit to compensate for voltage drops between the converter and the point of use. note that if the sense pins are connected but the output voltage pins are not, the converter may be damaged. the maximum voltage drop from the output to the sense pin is shown in t able 1 below . n ominal o utput v oltage (v) 1 m a x v oltage drop (v) m a x v oltage at converter (v ma x ) 1 3.3 2 0.58 3.88 5 1.0 6.0 8.7 2 1.9 10.58 12 2.68 14.68 15 3.36 18.36 notes for t able 1 1. do not exceed maximum voltage. 2. the sense pin function for 3.3 and 8.7 is only available on single output models. t able 1: m aximum v ol t age d rop u sing r emote s ense s ingle and d ual m odels only page 2 of 44 smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
o utput v o ltage t rim there are two possible methods for output voltage trim. t rim can be achieved using the provided trim pin or in some cases the sense pin. the preferred method is the use of the trim pin. every converter in the smr t family provides a trim pin that allows at least one output to be adjusted. see t able 3 and t able 4 for maximum adjust range for each output voltage. the single output models provide a trim pin and remote sense. the dual output models allow remote sense on v out a and have a trim pin on the v out b. the triples have a trim pin on the v out a (main)and a single trim pin for both v out b auxiliaries. for outputs without a trim pin, the output at the converter can be adjusted up by adding resistance in series with the sense pin. see t able 2 for a summary of trim features and see below for details on the trim features. see formula 1 for trimming down when using a trim pin, formula 2 for trimming up when using a trim pin and formula 3 when trimming up using sense a pin on a dual output model. note: do not exceed maximum current rating when trimming down. note: do not exceed maximum power rating when trimming up. voltage adjust feature singles duals triples trim pin (formulas 1 and 2) trim and sense pin trim b trim a, trim b sense pin (formula 3) sense a t able 2: t rim and s ense v o ltage a djust o utput v o ltage t rim d eta ils the output voltage trim pin function is implemented with a resistor between the trim pin and either the output voltage pin or the sense pin. figure 1 and figure 2 show the connections for the trim resistor (r trim ). 1 2 3 4 5 14 13 12 11 10 9 8 smrt single sense trim 1 2 3 4 5 14 13 12 11 10 9 8 smrt dual vout b trim b 1 2 3 4 5 14 13 12 11 10 9 8 smrt triple vout a trim a trim b +vout b f igure 1: t rim d own d iagrams 1 2 3 4 5 14 13 12 11 10 9 8 smrt single sense return trim 1 2 3 4 5 14 13 12 11 10 9 8 smrt dual vout b return trim b 1 2 3 4 5 14 13 12 11 10 9 8 smrt triple vout a return trim a trim b vout b return f igure 2: t rim u p d iagrams page 3 of 44 smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t rim d own using trim pin , all m odels to trim the output voltage lower than the nominal set point, connect r trim as shown in figure 1. the value of r trim is calculated by the following equation: f ormula 1: t rim d own u sing t rim p in r trim = k ( v out C v min ) / ( v nom C v out ) where: k = multiplication constant from t able 3 v out = desired output voltage (must be greater than v min ) v min = minimum output voltage from t able 3 v nom = nominal set point voltage of the converter note: do not exceed maximum current rating when trimming down. t rim up using trim pin , a ll m odels to trim the output voltage higher than the nominal set point, connect r trim as shown in figure 2. the value of r trim is calculated by the following equation: f ormula 2: t rim u p u sing t rim p in r trim = k ( v ma x C v out ) / ( v out C v nom ) where: k = multiplication constant from t able 4 v out = desired output voltage (must be less than v ma x ) v ma x = maximum output voltage from t able 4 v nom = nominal set point voltage of the converter note: do not exceed maximum power rating when trimming up. t rim up using s ense a p in on d ual m odels o nl y trim up v out a in addition to remote sensing, the sense a pin may be used to increase the regulated output voltage at the v out a pin. this is accomplished by attaching a resistor (r adjust ) between the sense a pin (pin 8) and the v out a pin (pin 1 1). the value of r adjust is calculated by the following equation: f ormula 3: t rim u p u sing s ense a p in r adjust = 240 ( v out C v nom ) / ( k + ( v max C v out )) where: v out = desired output voltage (must be less than v ma x ) v nom = nominal set point voltage of the converter v ma x = maximum achievable output voltage note: do not exceed maximum power rating when trimming up. v nom k v m a x % of v nom 3.3 3000 3.70 112 5 single and triple 3000 6.26 125 5 dual 5280 5.82 11 6 7 5300 8.27 118 8.7 5300 10.46 120 12 5300 14.69 122 15 5300 18.54 124 v nom k v min % of v nom 3.3 3500 3.18 96 5 single and triple 4520 4.16 83 5 dual 7040 4.38 88 7 8020 5.47 78 8.7 9040 6.13 70 12 1 1030 7.05 58 15 12900 7.65 51 o utput v o ltage t rim d eta ils ( continued ) t able 3: t rim d own c ons tants when u sing t rim p in t able 4: t rim u p c ons tants when u sing t rim p in t able 5: t rim u p c ons tants when u sing s ense p in on o utput a of d ual o utput m odels v nom k v m a x % of v nom 5 1 6.00 120 12 0.98 12.98 108 15 1.134 16.13 107.5 page 4 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
f igure 3: smrt s ingle b lock d iagram page 5 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 bias 1 error amp / ref / compensation 28v vout a rtn. vout a rtn. ocp ocp inhibit vin vin rtn. trim sense bias 1 sense rtn. vout a vout a vout a rtn. clock phase a phase b prim. bias prim. bias sync in emi filter prim. bias bias 2 feed forward compensation 28v prim. bias feedback feedback 5.1v z prim. bias primary prim. bias secondary sync rtn. vout a rtn. crane aerospace & electronics power solutions www.craneae.com/interpoint pwm isolation pwm isolation 28v
f igure 4 : smrt d ual b lock d iagram ocp page 6 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 bias 1 error amp / ref / compensation 28v vout a rtn. vout a rtn ocp inhibit vin vin rtn. sense a sense a rtn. vout a bias 1 vout b vout b rtn. vout b rtn. clock phase a phase b prim. bias prim. bias sync in prim. bias emi filter bias 2 feed forward compensation 28v prim. bias feedback feedback 5.1v z prim. bias primary secondary prim. bias sync rtn. bias 2 trim b error amp / ref / compensation crane aerospace & electronics power solutions www.craneae.com/interpoint pwm isolation pwm isolation 28v
f igure 5 : smrt t riple b lock d iagram page 7 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 vout b neg. bias 1 isolation 28v 28v vout a rtn. vout a rtn. ocp ocp inhibit vin vin rtn. error amp / ref / trim a vout a vout b pos. vout b rtn. vout b rtn. clock phase a phase b prim. bias prim. bias compensation sync in prim. bias bias 2 feed forward compensation 28v prim. bias feedback feedback 5.1v z bias 1 prim. bias primary secondary sync rtn. bias 2 trim b error amp / ref / compensation crane aerospace & electronics power solutions www.craneae.com/interpoint emi filter prim. bias pwm isolation pwm
f igure 6: p in o ut 1 2 3 4 5 14 13 12 11 10 9 8 top view for dimens ions see figure 66 on page 41. pin out p in s ingle o utput d ual o utput t riple o utput 1 vin vin vin 2 vin return v in return v in return 3 inhibit inhibit inhibit 4 sync in sync in sync in 5 sync return sync return sync return 8 sense sense a t rim b 9 sense return sense a return v out b negative 10 v out a return 1 vout a return v out b return 11 v out a 1 vout a v out b positive 12 t rim trim b t rim a 13 v out a 1 vout b v out a 14 v out a return 1 vout b return v out a return 1. t o meet specifications for single output models, v out a pins (1 1 and 13) must be tied together and v out a return pins (10 and 14) must be tied together . pins not in use inhibit leave unconnec ted sync in connect to sync return sense lines (single and dual) must be connected to appropriate outputs t rim leave unconnec ted t able 6: p in o ut t able 7: p ins n ot in u se page 8 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
m odel nu m bering key smrt 28 515 t / k r base model input voltage output voltage environmental screening radiation hardness assurance (rha) number of outputs (s=single, d=dual, t=triple) (single or dual vout for single or dual models main and aux. vout for triple models) s m d n u m bers s tandard m icrocircuit d rawing (sm d) smrt s imilar p art 5962r0622001k x c smr t283r3s/kr 5962r0622101k x c smrt2805s/kr 5962r1220101k x c smrt288r7s/kr 5962r0821001k x c smrt2812s/kr 5962r0622201k x c smrt2815s/kr 5962r0622301k x c smrt2805d/kr 5962r0720201k x c smr t2812d/kr 5962r0622401k x c smrt2815d/kr 5962r0821101k x c smrt283r312t/kr 5962r0821201k x c smrt283r315t/kr 5962r1322101k x c smrt28507t/kr 5962r0622501k x c smrt28512t/kr 5962r0622601k x c smrt28515t/kr the smd number shown is for class k screening and radiation hardness assurance (rha) level r. see the smd for the numbers for other screening and radiation levels. for exact specifications for an smd product, refer to the smd drawin g. smds can be downloaded from: www .landandmaritime.dla.mil/programs/smcr m odel n u m ber o ptions t o determine the model number enter one option from each category in the form below . c ategory b ase model and i nput voltage o utput voltage 1 n umber of o utputs 2 s creening 3 r h a 4 o ptions smrt28 3r3, 05, 8r7, 12, 15 s o o 05, 12, 15 d h p 3r312, 3r315, t k l 507, 512, 515 r fill in f or model # smrt28 __________ __________ / _ _ _ _ _ _ _ notes 1. output v oltage: an r indicates a decimal point. 3r3 is 3.3 volts out. the 3r3 output voltage is only available in single and triple output models. the 3r312 and 3r315 triple output converters are +3.3 volt main and 12 or 15 volt auxiliaries. the 507 triple output converter is +5 main and 7 volt auxiliaries. the 512 and 515 triple output converters are +5 volt main and 12 or 15 volt auxiliaries. 2. number of outputs: s is a single output, d is a dual output, and t is a triple output 3. screenin g: a screening level of o is a space prototype and is only used with rha o. see t able 27 and t able 28 for more information. 4. rha: interpoint model numbers use an o in the rha designator position to indicate the - (dash) rha level of mil-prf-38534, which is defined as no rha. rha o is only available with screening level o. see t able 28 for more information. t able 8: smd n umber c ross r eference t able 9: m odel n umber o ptions f igure 7: m odel n umbering k ey page 9 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
a ll m odels parameter conditions min t y p ma x units lead soldering tempera ture 1 10 seconds ma x. 300 c st orage tempera ture 1 -65 +150 c case opera ting full power -55 +125 c tempera ture absolute 1 -55 +135 derating output power/current 1 linearl y from 100% at 125c to 0% at 135c esd ra ting 1 mil-std-883 m ethod 3015 8000 v mil-prf-38534, 3.9.5.8.2 c lass 3b isola tion: input to output or @ 500 vdc 100 megohms a n y pin to case under voltage lockout 1 r ising v in (t urn on ) 13.07 16.37 v f alling v in (t urn off ) 12.26 15.80 current limit 2 % of full load 145 % audio rejection 1 50 db conversion frequenc y free run -55 t o +125c 270 300 330 khz s y nchronization 3 input frequenc y 270 330 khz sy nc is floating and isolated dut y c y cle 1 20 80 % active low 0.8 v active high 1 2.5 10 referenced t o s y nc return if not used connect t o s y nc return inhibit active low (output disabled) inhibit pin pulled low 1, 4 0.4 v do not apply a voltage to the inhibit pin inhibit pin source current 1 2 ma referenced t o input common inhibit active high (output enabled) do not apply a voltage to the inhibit pin inhibit pin condition open collect or or unconnected open pin vol tage 1 5 6 v notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. t riple outputs: the over-current limit will trigger when the sum of the auxiliary currents reaches 145% (typical value) of the maximum rated total current of the auxiliar y outputs. 3. if sync is used at lower end of range, full load operation is not guaranteed. 4. t ested with inhibit pin at 0 volts. t able 10: o perat ing c onditions - all models , 25 case , 28 v in , unless o therwise specified . for mean time between failures (mtbf) contact applications engineering powerapps@crane-eg.com +1 425-882-3100 option 7 page 10 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 11: e lectrical c haracteristics : -55 c t o +125 c case , 28 v in , 100% load , free run , unless o therwise specified . notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. line regulation is tested at full load. however , to maintain regulation above 28 volts input, a minimu m load is required of 0% at 28 volts input increasing linearly to 5% at 56 volts input. 3. converters meet mil-std-461 specification revisions for conducted emissions c-ce03 and d-/e-/f-ce-102. the actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 4. maximum power dissipation when output is shorted. 5. recovery time is measured from application of the transient to point at which v out is within 1% of v out at final value. 6. t ransition time > 10 s. 7. half load to/from full load. 8 measure d from release of inhibit or input voltage step. single output models smr t283r3s smrt2805s smrt288r7s units parameter conditions min t y p ma x min t y p ma x min t y p ma x output vol tage 3.23 3.30 3.37 4.90 5.00 5.10 8.52 8.70 8.87 v output current 6.97 6.0 4.0 a output power 23 30 35 w output ripple t c = 25c 250 180 160 mv p-p 10 k hz - 20 mh z t c = -55c to +125c 280 180 200 line regula tion 2 v in = 19 to 50 v 5 30 5 30 5 30 mv load regula tion nl - fl 5 40 5 40 5 40 mv t otal regula tion 1 v out all conditions of line, load, aging, temp and radia tion 3.0 3.6 4.7 5.3 8.3 9.1 v input vol tage continuous 19 28 56 19 28 56 19 28 56 v transient 120 ms 1 80 80 80 v input current no load 11 0 110 115 ma inhibited 50 50 50 input ripple current 3 10 khz - 20 mhz 10 50 10 50 10 50 ma p-p efficienc y t c = 25c 61 64 67 71 74 75.5 % t c = -55c to +125c 60 66 72 load f ault 4 power dissip ation 31 28 25 w recover y 1 25 25 25 ms step load response 5, 6, 7 transient 450 450 450 mv pk 50% - 100% - 50% recover y 3 3 4 ms step line response 1, 5, 6 19 - 50 - 19 v in transient 500 500 600 mv pk recover y 4 4 4 ms st art-up 8 dela y 35 25 25 ms overshoot 50 50 95 mv pk cap acitive load 1 t c = 25c unconditionall y st able, st art-up dela y increased 5000 5000 5000 f page 1 1 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 12: e lectrical c haracteristics : -55 c t o +125 c case , 28 v in , 100% load , free run , unless o therwise specified . single output models smr t2812s smrt2815s units parameter conditions min t y p ma x min t y p ma x output vol tage 11.76 12.00 12.24 14.70 15.00 15.30 v output current 2.92 0 2.33 a output power 35 0 35 w output ripple t c = 25c 160 140 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 180 line regula tion 2 v in = 19 to 50 v 5 30 5 30 mv load regula tion nl - fl 5 40 5 40 mv t otal regula tion 1 v out all conditions of line, load, aging, temp and radia tion 10.9 13.1 14.0 16.0 v input vol tage continuous 19 28 56 19 28 56 v transient 120 ms 1 80 80 v input current no load 11 0 110 ma inhibited 50 50 input ripple current 3 10 khz - 20 mhz 10 50 10 50 ma p-p efficienc y t c = 25c 76 78 76 80 % t c = -55c to +125c 75 75 load f ault 4 power dissip ation 20 20 w recover y 1 25 25 ms step load response 5, 6, 7 transient 575 575 mv pk 50% - 100% - 50% recover y 3 3 ms step line response 1, 5, 6 19 - 50 - 19 v in transient 700 700 mv pk recover y 4 4 ms st art-up 8 dela y 25 25 ms overshoot 120 150 mv pk cap acitive load 1 t c = 25c unconditionall y st able, st art-up dela y increased 5000 5000 f notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. line regulation is tested at full load. however , to maintain regulation above 28 volts input, a minimu m load is required of 0% at 28 volts input increasing linearly to 5% at 56 volts input. 3. converters meet mil-std-461 specification revisions for conducted emissions c-ce03 and d-/e-/f-ce-102. the actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 4. maximum power dissipation when output is shorted. 5. recovery time is measured from application of the transient to point at which v out is within 1% of v out at final value. 6. t ransition time > 10 s. 7. half load to/from full load. 8 measure d from release of inhibit or input voltage step. page 12 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 13: e lectrical c haracteristics : -55 c t o +125 c case , 28 v in , 100% load , free run , unless o therwise specified . dual output models smr t2805d smrt2812d smrt2815d units parameter conditions min t y p ma x min t y p ma x min t y p ma x output vol tage v out a 4.90 5.00 5.10 1 1.76 12.00 12.24 14.70 15.00 15.30 v v out b 4.90 5.00 5.10 1 1.76 12.00 12.24 14.70 15.00 15.30 output current 2 v out a 3.0 1.46 1.17 v out b 3.0 1.46 1.17 a output power 2 v out a 15 17.5 17.5 w v out b 15 17.5 17.5 output ripple t c = 25c 180 150 140 mv p-p 10 khz - 20 mhz v out t c = -55c to +125c 200 200 180 line regula tion 3 v in = 19 to 50 v 30 5 25 5 30 mv load regula tion nl - fl 5 40 5 50 5 40 mv t otal regula tion 1 v out all conditions of line, load, aging, temp and radia tion 4.6 5.4 10.9 13.1 14.0 16.0 v input vol tage continuous 19 28 56 19 28 56 19 28 56 v transient 120 ms 1 80 80 80 v input current no load 11 0 100 110 ma inhibited 50 50 50 input ripple current 4 10 khz - 20 mhz 10 50 10 50 10 50 ma p-p efficienc y t c = 25c 67 70 76 76 76 80 % t c = -55c to +125c 66 75 75 load f ault 5 power dissip ation 28 20 20 w recover y 1 25 25 25 ms step load response 6, 7, 8 transient 450 450 575 mv pk 50% - 100% - 50% recover y 3 2 3 ms step line response 1, 6, 7 19 - 50 - 19 v in transient 500 1000 700 mv pk recover y 4 3 4 ms start-up 9 dela y 25 20 25 ms overshoot 50 350 150 mv pk cap acitive load 1, 10 t c = 25c unconditionall y st able, st art-up dela y increased 5000 5000 5000 f notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. the specified maximum current/power is available from each output. 3. line regulation is tested at full load. however , to maintain regulation above 28 volts input, a minimu m load is required of 0% at 28 volts input increasing linearly to 5% at 56 volts input. applies to both outputs. 4. converters meet mil-std-461 specification revisions for conducted emissions c-ce03 and d-/e-/f-ce-102. the actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 5. maximum power dissipation when output is shorted. 6. recovery time is measured from applic ation of the transient to point at which v out is within 1% of v out at final value. 7. t ransition time >10 s. 8. half load to/from full load. 9. measure d from release of inhibit or input voltage step. 10. applies to each output. page 13 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
triple output model C smr t283r312t 3.3 (m ain ) 12 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 3.23 3.30 3.37 11.76 12.00 12.24 v n eg . a u x. -1 1.58 -12.00 -12.42 output current 2 e ither o utput 4.5 0.625 1 1 a ma x t ot al au x 1.25 output power 2 e ither o utput 15 7.5 12 1 w ma x t ot al au x 15 output ripple t c = 25c 180 140 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 150 line regula tion 3 m ain and pos. a u x 30 5 30 mv v in = 19 to 50 v n eg . a u x. 10 70 load regula tion m ain & +a u x., nl - fl 5 40 5 40 b alanced a u x. -a u x., nl - fl 10 300 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 3.0 3.6 10.9 13.1 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 11 0 ma inhibited 50 input ripple current 6 10 khz - 20 mhz 10 50 ma p-p efficienc y 7 t c = 25c 69 70.5 % t c = -55c t o +125c 68 load f ault 8 power dissip ation 28 w recover y 1 25 25 ms step load response 9, 10, 1 1, 12 transient 450 450 mv pk 50% - 100% - 50% recover y 3 3 ms step line response 1, 9, 10 19 - 50 - 19 v in transient 500 750 mv pk recover y 4 4 ms start-up 13 dela y 35 25 ms overshoot 0 50 0 120 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f notes see page 19 t able 14: e lectrical c haracteristics : -55 c t o +125 c case , 28 v in , 100% load , free run , unless o therwise specified . page 14 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 15: e lectrical c haracteristics : -55 c t o +125 c case , 28 v in , 100% load , free run , unless o therwise specified . notes see page 19 triple output model C smr t283r315t 3.3 (m ain ) 15 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 3.23 3.30 3.37 14.70 15.00 15.30 v n eg . a u x. -14.48 -15.00 -15.53 output current 2 e ither o utput 4.5 0.5 0.8 1 a ma x t ot al au x 1.0 output power 2 e ither o utput 15 7.5 12 1 w ma x t ot al au x 15 output ripple t c = 25c 180 140 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 150 line regula tion 3 m ain and pos. a u x 30 5 30 mv v in = 19 to 50 v n eg . a u x. 10 70 load regula tion m ain & +a u x., nl - fl 5 40 5 40 b alanced a u x. -a u x., nl - fl 300 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 3.0 3.6 14.0 16.0 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 11 0 ma inhibited 50 input ripple current 6 10 khz - 20 mhz 10 50 ma p-p efficienc y 7 t c = 25c 70 71 % t c = -55c to +125c 68 load f ault 8 power dissip ation 28 w recover y 1 25 25 ms step load response 9, 10, 1 1, 12 transient 450 450 mv pk 50% - 100% - 50% recover y 3 3 ms step line response 1, 9, 10 19 - 50 - 19 v in transient 500 750 mv pk recover y 4 4 ms start-up 13 dela y 35 25 ms overshoot 0 50 0 150 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f page 15 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
notes see page 19 triple output model C smr t28507t 5 (m ain ) 7 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 4.90 5.00 5.10 6.86 7.00 7.14 v n eg . a u x. -6.79 7.00 -7.21 output current 2 m ain and e ither o utput 3.0 1.00 1.6 1 a ma x t ot al au x 2.0 output power 2 m ain and e ither o utput 15 7.0 1 1.2 1 w ma x t ot al au x 14 output ripple t c = 25c 180 170 mv p-p 10 khz - 20 mhz t c = -55c to +125c 180 190 line regula tion 3 m ain and pos. a u x 30 100 mv v in = 19 to 50 v n eg . a u x. 150 load regula tion m ain and +a u x., nl - fl 5 40 5 150 b alanced a u x. -a u x., nl - fl 350 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 4.7 5.3 6.53 7.47 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 11 0 ma inhibited 50 input ripple current 6 10 khz - 20 mhz 10 50 ma p-p efficienc y 7 t c = 25c 70 71 % t c = -55c to +125c 69 load f ault 8 power dissip ation 28 w recover y 1 25 25 ms step load response 9, 10, 1 1, 12 transient 300 400 mv pk 50% - 100% - 50% recover y 3 3 ms step line response 1, 9, 10 19 - 50 - 19 v in transient 500 750 mv pk recover y 3 3 ms start-up 13 dela y 25 25 ms overshoot 0 50 0 70 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f t able 16: e lectrical c haracteristics : -55 c t o +125 c case , 28 v in , 100% load , free run , unless o therwise specified . page 16 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
notes see page 19 triple output model C smr t28512t 5 (m ain ) 12 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 4.90 5.00 5.10 11.76 12.00 12.24 v n eg . a u x. -1 1.58 -12.00 -12.42 output current 2 e ither o utput 3.0 0.625 1 1 a ma x t ot al au x 1.25 output power 2 e ither o utput 15 7.5 12 1 w ma x t ot al au x 15 output ripple t c = 25c 180 140 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 150 line regula tion 3 m ain and pos. a u x 30 5 30 mv v in = 19 to 50 v n eg . a u x. 20 70 load regula tion m ain & +a u x., nl - fl 5 40 5 40 b alanced a u x. -a u x., nl - fl 10 300 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 4.7 5.3 10.9 13.1 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 11 0 ma inhibited 50 input ripple current 6 10 khz - 20 mhz 10 50 ma p-p efficienc y 7 t c = 25c 69 75 % t c = -55c to +125c 68 load f ault 8 power dissip ation 25 w recover y 1 25 25 ms step load response 9, 10, 1 1, 12 transient 450 450 mv pk 50% - 100% - 50% recover y 3 3 ms step line response 1, 9, 10 19 - 50 - 19 v in transient 500 750 mv pk recover y 4 4 ms start-up 13 dela y 25 25 ms overshoot 0 50 0 120 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f t able 17: e lectrical c haracteristics : -55 c t o +125 c case , 28 v in , 100% load , free run , unless o therwise specified . page 17 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 18: e lectrical c haracteristics : -55 c t o +125 c case , 28 v in , 100% load , free run , unless o therwise specified . notes see page 19 triple output model C smr t28515t 5 (m ain ) 15 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 4.92 5.00 5.08 14.77 15.00 15.23 v n eg . a u x. -14.70 -15.00 -15.30 output current 2 e ither o utput 3.0 0.5 0.80 1 a ma x t ot al au x 1 output power 2 e ither o utput 15 7.5 12 1 w ma x t ot al au x 15 output ripple t c = 25c 180 150 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 200 line regula tion 3 m ain and pos. a u x 5 25 25 mv v in = 19 to 50 v n eg . a u x. 20 35 load regula tion m ain & +a u x., nl - fl 5 50 5 50 b alanced a u x. -a u x., nl - fl 500 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 4.7 5.3 14.0 16.0 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 11 0 ma inhibited 50 input ripple current 6 10 khz - 20 mhz 10 50 ma p-p efficienc y 7 t c = 25c 72 75 % t c = -55c to +125c 70 load f ault 8 power dissip ation 25 w recover y 1 35 35 ms step load response 9, 10, 1 1, 12 transient 250 350 mv pk 50% - 100% - 50% recover y 1 1 ms step line response 1, 9, 10 19 - 50 - 19 v in transient 500 750 mv pk 50% - 100% - 50% recover y 1.5 1.5 ms start-up 13 dela y 25 20 ms overshoot 0 200 0 350 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f page 18 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
notes for triple output models on t able 14 through t able 18. 1. guaranteed by characterization test and/or analysis. not a production test. 2. up to the maximum specified auxiliary output current/power is available from either auxiliary output provided the total auxiliary output current power does not exceed the total current/power specified. 3. line regulation is tested at full load. however , to maintain regulation above 28 volts input, a minimum load is required of 0% at 28 volts input increasing linearly to 5% at 56 volts in. load percentage applies to the main output and also to the sum of the auxiliaries. 4. t o maintain the cross regulation specification, one of the auxiliaries must always provide a minimum of 20% of the total auxiliary power used. negative v out cross regulation is referenced to 50%/50% balanced loads (at 100% of total rated output power - full load). 5. cross regulation is measured under the following conditions: condition 1: +p out = 20 - 80%,/- p out = 80 - 20% condition 2: - p out = 20 - 80%, /+ p out = 80 - 20% 6. converters meet mil-std-461 specification revisions for conducted emissions c-ce03 and d-/e-/f-ce-102. the actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 7. ef ficiency measure d with all outputs at full load. 8. maximum power dissipation when all outputs are shorted simultaneously . 9. recovery time is measured from applic ation of the transient to point at which v out is within 1% of v out at final value 10. t ransition time >10 s. 1 1. half load to/from full load. 12. the step load specification for the negative auxiliary output is guaranteed by qualification test. it is not an in-line test. 13. measured from release of inhibit or input voltage step. 14. applies to each auxiliary . . e lectrical c haracteristics : -55 c t o +125 c case , 28 v in , 100% load , free run , unless o therwise specified . page 19 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 19: e lectrical c haracteristics : -55 c t o +125 c case , 50 v in , 100% load , free run , unless o therwise specified . notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. line regulation is tested at full load. however , to maintain regulation above 28 volts input, a minimu m load is required of 0% at 28 volts in increasing linearly to 5% at 56 volts in. 3. converters meet mil-std-461 specification revisions for conducted emissions c-ce03 and d-/e-/f-ce-102. the actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 4. maximum power dissipation when output is shorted. 5. recovery time is measured from application of the transient to point at which v out is within 1% of v out at final value. 6. t ransition time > 10 s. 7. half load to/from full load. 8. measure d from release of inhibit or input voltage step. single output models smr t283r3s smrt2805s smrt288r7s units parameter conditions min t y p ma x min t y p ma x min t y p ma x output vol tage 28 v in 3.23 3.30 3.37 4.90 5.00 5.10 8.52 8.70 8.87 v output current 0.28 6.97 0.24 6.0 0.16 4.0 a output power 0.92 23 1.2 30 1.4 35 w output ripple t c = 25c 250 200 200 mv p-p 10 khz - 20 mhz t c = -55c to +125c 280 200 200 line regula tion 2 v in = 19 to 50 v 30 30 30 mv v in = 19 to 56 v 60 60 30 load regula tion 5% - fl 80 70 80 mv t otal regula tion 1 v out all conditions of line, load, aging, temp and radia tion 3.0 3.6 4.7 5.3 8.3 9.1 v input vol tage continuous 19 28 56 19 28 56 19 28 56 v transient 1 120 ms 80 80 80 v input current no load 100 100 105 ma inhibited 55 55 55 input ripple current 3 10 khz - 20 mhz 60 60 60 ma p-p efficienc y t c = 25c 60 66 72 % t c = -55c to +125c 60 66 72 load f ault 4 power dissip ation 33 33 28 w recover y 1 25 25 25 ms step load response 5, 6, 7 transient 450 450 450 mv pk 50% - 100% - 50% recover y 3 3 4 ms step line response 1, 5, 6 19 - 56 - 19 v in transient 500 500 500 mv pk recover y 4 4 4 ms st art-up 8 dela y 35 25 25 ms overshoot 50 50 95 mv pk cap acitive load 1 t c = 25c unconditionall y st able, st art-up dela y increased 5000 5000 5000 f page 20 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 50 volt i nput s peci f ications smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 20: e lectrical c haracteristics : -55 c t o +125 c case , 50 v in , 100% load , free run , unless o therwise specified . single output models smr t2812s smrt2815s units parameter conditions min t y p ma x min t y p ma x output vol tage 28 v in 11.76 12.00 12.24 14.70 15.00 15.30 v output current 0.1 16 2.92 0.093 2.33 a output power 1.4 35 1.4 35 w output ripple t c = 25c 200 180 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 180 line regula tion 2 v in = 19 to 50 v 25 30 mv v in = 19 to 56 v 50 60 load regula tion 5% - fl 70 90 mv t otal regula tion 1 v out all conditions of line, load, aging, temp and radia tion 10.9 13.1 14.0 16.0 v input vol tage continuous 19 28 56 19 28 56 v transient 1 120 ms 80 80 v input current no load 100 100 ma inhibited 55 55 input ripple current 3 10 khz - 20 mhz 60 60 ma p-p efficienc y t c = 25c 72 72 % t c = -55c to +125c 72 72 load f ault 4 power dissip ation 28 28 w recover y 1 25 25 ms step load response 5, 6, 7 transient 575 575 mv pk 50% - 100% - 50% recover y 3 3 ms step line response 1, 5, 6 19 - 56 - 19 v in transient 700 700 mv pk recover y 4 4 ms st art-up 8 dela y 25 25 ms overshoot 120 150 mv pk cap acitive load 1 t c = 25c unconditionall y st able, st art-up dela y increased 5000 5000 f notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. line regulation is tested at full load. however , to maintain regulation above 28 volts input, a minimu m load is required of 0% at 28 volts in increasing linearly to 5% at 56 volts in. 3. converters meet mil-std-461 specification revisions for conducted emissions c-ce03 and d-/e-/f-ce-102. the actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 4. maximum power dissipation when output is shorted. 5. recovery time is measured from application of the transient to point at which v out is within 1% of v out at final value. 6. t ransition time > 10 s. 7. half load to/from full load. 8. measure d from release of inhibit or input voltage step. page 21 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 50 volt i nput s peci f ications smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 21: e lectrical c haracteristics : -55 c t o +125 c case , 50 v in , 100% load , free run , unless o therwise specified . dual output models smr t2805d smrt2812d smrt2815d units parameter conditions min t y p ma x min t y p ma x min t y p ma x output vol tage v out a 4.90 5.00 5.10 1 1.76 12.00 12.24 14.70 15.00 15.30 v v in = 28 v out b 4.90 5.00 5.10 1 1.76 12.00 12.24 14.70 15.00 15.30 output current 2 v out a 0.12 3.0 0.06 1.46 0.05 1.17 v out b 0.12 3.0 0.06 1.46 0.05 1.17 a output power 2 v out a 0.60 15 0.70 17.5 0.70 17.5 w v out b 0.60 15 0.70 17.5 0.70 17.5 output ripple t c = 25c 200 170 180 mv p-p 10 khz - 20 mhz vout tc = -55c to +125c 200 200 180 line regula tion 3 v in = 19 to 50 v 30 25 30 mv v in = 19 to 56 v 60 25 60 load regula tion 50 v in , 5% - fl 70 100 70 mv t otal regula tion 1 v out all conditions of line, load, aging, temp and radia tion 4.6 5.4 10.9 13.1 14.0 16.0 v input vol tage continuous 19 28 56 19 28 56 19 28 56 v transient 120 ms 80 80 80 v input current no load 100 100 100 ma inhibited 55 55 55 input ripple current 4 10 khz - 20 mhz 60 60 60 ma p-p efficienc y t c = 25c 66 72 72 % tc = -55c to +125c 66 72 70 load f ault 5 power dissip ation 33 28 28 w recover y 1 25 25 25 ms step load response 6, 7, 8 transient 450 450 575 mv pk 50% - 100% - 50% recover y 3 2 3 ms step line response 1, 6, 7 19 - 56 - 19 v in transient 500 1000 700 mv pk recover y 4 3 4 ms start-up 9 dela y 25 20 25 ms overshoot 50 350 150 mv pk cap acitive load 1, 10 t c = 25c unconditionall y st able, st art-up dela y increased 5000 5000 5000 f notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. the specified maximum current/power is available from each output. 3. line regulation is tested at full load. however , to maintain regulation above 28 volts input, a minimu m load is required of 0% at 28 volts input increasing linearly to 5% at 56 volts input. applies to both outputs. 4. converters meet mil-std-461 specification revisions for conducted emissions c-ce03 and d-/e-/f-ce-102. the actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 5. maximum power dissipation when output is shorted. 6. recovery time is measured from applic ation of the transient to point at which v out is within 1% of v out at final value. 7. t ransition time >10 s. 8. half load to/from full load. 9. measure d from release of inhibit or input voltage step. 10. applies to each output. page 22 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 50 volt i nput s peci f ications smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
triple output model C smr t283r312t 3.3 (m ain ) 12 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 3.23 3.30 3.37 11.76 12.00 12.24 v v in = 28 n eg . a u x. -1 1.58 -12.00 -12.42 output current 2 0.18 4.5 0.04 0.63 1 1 a m a x t ot al a u x. 1.25 output power 2 0.60 15 0.48 7.5 12 1 w m a x t ot al a u x 15 output ripple t c = 25c 200 150 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 150 line regula tion 3 m ain and pos. a u x 30 30 mv v in = 19 to 50 n eg . a u x. 70 line regula tion 3 m ain and pos. a u x 60 60 mv v in = 19 to 56 n eg . a u x. 140 load regula tion m ain & +a u x., 5% - fl 100 1 2 0 b alanced a u x. -a u x., 5% - fl 300 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 3.0 3.6 10.9 13.1 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 100 ma inhibited 55 input ripple current 6 10 khz - 20 mhz 60 ma p-p efficienc y 7 t c = 25c 67 % t c = -55c to +125c 67 load f ault 8 power dissip ation 35 w recover y 1 2.5 2.5 ms step load response 9, 10, 1 1, 12 transient 450 450 mv pk 50% - 100% - 50% recover y 2.5 2.5 ms step line response 1, 9, 10 19 - 56 - 19 v in transient 500 750 mv pk recover y 4 4 ms start-up 13 dela y 35 25 ms overshoot 50 120 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f notes see page 28 t able 22: e lectrical c haracteristics : -55 c t o +125 c case , 50 v in , 100% load , free run , unless o therwise specified . page 23 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 50 volt i nput s peci f ications smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 23: e lectrical c haracteristics : -55 c t o +125 c case , 50 v in , 100% load , free run , unless o therwise specified . notes see page 28 triple output model C smr t283r315t 3.3 (m ain ) 15 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 3.23 3.30 3.37 14.70 15.00 15.30 v v in = 28 n eg . a u x. -14.48 -15.00 -15.53 output current 2 0.18 4.5 0.02 0.5 0.8 1 a m a x t ot al a u x. 1.0 output power 2 0.06 15 0.48 7.5 12 1 w m a x t ot al a u x 15 output ripple t c = 25c 200 150 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 150 line regula tion 3 m ain and pos. a u x 30 30 mv v in = 19 to 50 n eg . a u x. 70 line regula tion 3 m ain and pos. a u x 60 60 mv v in = 19 to 56 n eg . a u x. 140 load regula tion m ain & +a u x., 50 v in , 5% - fl 100 1 2 0 b alanced a u x. -a u x., 50 v in , 5% - fl 300 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 3.0 3.6 14.0 16.0 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 95 ma inhibited 55 input ripple current 6 10 khz - 20 mhz 60 ma p-p efficienc y 7 t c = 25c 68 % t c = -55c to +125c 68 load f ault 8 power dissip ation 35 w recover y 1 25 25 ms step load response 9, 10, 1 1, 12 transient 350 350 mv pk 50% - 100% - 50% recover y 2.5 2.5 ms step line response 1, 9, 10 19 - 56 - 19 v in transient 500 750 mv pk recover y 4 4 ms start-up 13 dela y 35 25 ms overshoot 50 150 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f page 24 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 50 volt i nput s peci f ications smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
notes see page 28 triple output model C smr t28507t 5 (m ain ) 7 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 4.90 5.00 5.10 6.86 7.00 7.14 v v in = 28 n eg . a u x. -6.79 7.00 -7.21 output current 2 0.12 3.0 0.04 1.00 1.6 1 a m a x t ot al a u x. 2.0 output power 2 0.60 15 0.28 7.0 11.2 1 w m a x t ot al a u x 14 output ripple t c = 25c 230 200 mv p-p 10 khz - 20 mhz t c = -55c to +125c 230 200 line regula tion 3 m ain and pos. a u x 30 100 mv v in = 19 to 50 n eg . a u x. 150 line regula tion 3 m ain and pos. a u x 30 100 mv v in = 19 to 56 n eg . a u x. 150 load regula tion m ain & +a u x., 50 v in , 5% - fl 100 1 2 0 b alanced a u x. -a u x., 50 v in , 5% - fl 300 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 4.7 5.3 6.53 7.47 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 95 ma inhibited 55 input ripple current 6 10 khz - 20 mhz 60 ma p-p efficienc y 7 t c = 25c 68 % t c = -55c to +125c 68 load f ault 8 power dissip ation 33 w recover y 1 25 25 ms step load response 9, 10, 1 1, 12 transient 300 400 mv pk 50% - 100% - 50% recover y 2 2 ms step line response 1, 9, 10 19 - 56 - 19 v in transient 500 750 mv pk recover y 4 4 ms start-up 13 dela y 20 20 ms overshoot 50 70 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f t able 24: e lectrical c haracteristics : -55 c t o +125 c case , 50 v in , 100% load , free run , unless o therwise specified . page 25 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 50 volt i nput s peci f ications smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
notes see page 28 triple output model C smr t28512t 5 (m ain ) 12 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 4.90 5.00 5.10 11.76 12.00 12.24 v v in = 28 n eg . a u x. -1 1.58 -12.00 -12.42 output current 2 0.12 3.0 0.03 0.63 1 1 a ma x t ot al au x 1.25 output power 2 0.60 15 0.48 7.5 12 1 w ma x t ot al au x 15 output ripple t c = 25c 200 150 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 150 line regula tion 3 m ain and pos. a u x 30 30 mv v in = 19 to 50 n eg . a u x. 70 line regula tion 3 m ain and pos. a u x 60 60 mv v in = 19 to 56 n eg . a u x. 140 load regula tion m ain & +a u x., 50 v in , 5% - fl 100 1 2 0 b alanced a u x. -a u x., 50 v in , 5% - fl 300 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 4.7 5.3 10.9 13.1 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 100 ma inhibited 55 input ripple current 6 10 khz - 20 mhz 60 ma p-p efficienc y 7 t c = 25c 70 % t c = -55c to +125c 70 load f ault 8 power dissip ation 33 w recover y 1 25 25 ms step load response 9, 10, 1 1, 12 transient 350 350 mv pk 50% - 100% - 50% recover y 2.5 2.5 ms step line response 1, 9, 10 19 - 56 - 19 v in transient 500 750 mv pk recover y 4 4 ms start-up 13 dela y 20 20 ms overshoot 50 120 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f t able 25: e lectrical c haracteristics : -55 c t o +125 c case , 50 v in , 100% load , free run , unless o therwise specified . page 26 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 50 volt i nput s peci f ications smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 26: e lectrical c haracteristics : -55 c t o +125 c case , 50 v in , 100% load , free run , unless o therwise specified . notes see page 28 triple output model C smr t28515t 5 (m ain ) 15 (a u x iliaries ) units parameter conditions min t y p ma x min t y p ma x output vol tage m ain and p os . a u x 4.92 5.00 5.08 14.77 15.00 15.23 v v in = 28 n eg . a u x. -14.70 -15.00 -15.30 output current 2 0.12 3.0 0.02 0.5 0.80 1 a m a x t ot al a u x. 1 output power 2 0.60 15 0.30 7.5 12 1 w m a x t ot al a u x 15 output ripple t c = 25c 200 200 mv p-p 10 khz - 20 mhz t c = -55c to +125c 200 200 line regula tion 3 m ain and pos. a u x 25 25 mv v in = 19 to 50 n eg . a u x. 35 line regula tion 3 m ain and pos. a u x 50 50 mv v in = 19 to 56 n eg . a u x. 70 load regula tion m ain & +a u x., 50 v in , 5% - fl 100 1 2 0 b alanced a u x. -a u x., 50 v in , 5% - fl 300 mv total regula tion 1 v out all conditions of line, load, aging, temp and radia tion 4.7 5.3 14.0 16.0 v cross regula tion 1, 4, 5 t c = 25c e ffect on n egative a u x iliar y 2.5 % input vol tage continuous 19 28 56 v transient 120 ms 1 80 v input current no load 100 ma inhibited 55 input ripple current 6 10 khz - 20 mhz 50 ma p-p efficienc y 7 t c = 25c 70 % t c = -55c to +125c 70 load f ault 8 power dissip ation 33 w recover y 1 35 35 ms step load response 9, 10, 1 1, 12 transient 250 350 mv pk 50% - 100% - 50% recover y 1 1 ms step line response 1, 9, 10 19 - 56 - 19 v in transient 500 750 mv pk recover y 1.5 1.5 ms start-up 13 dela y 25 20 ms overshoot 200 350 mv pk cap acitive load 1, 14 t c = 25c unconditionall y st able, st art-up dela y increased 5000 1000 f page 27 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 50 volt i nput s peci f ications smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
notes for triple output models on t able 22 through t able 26. 1. guaranteed by characterization test and/or analysis. not a production test. 2. up to the maximum specified auxiliary output current/power is available from either auxiliary output provided the total auxiliary output current power does not exceed the total current/power specified. 3. line regulation is tested at full load. however , to maintain regulation above 28 volts input, a minimum load is required of 0% at 28 volts input increasing linearly to 5% at 56 volts in. load percentage applies to the main output and also to the sum of the auxiliaries. 4. t o maintain the cross regulation specification, one of the auxiliaries must always provide a minimum of 20% of the total auxiliary power used. negative v out cross regulation is referenced to 50%/50% balanced loads (at 100% of total rated output power - full load). 5. cross regulation is measured under the following conditions: condition 1: +p out = 20 - 80%,/- p out = 80 - 20% condition 2: - p out = 20 - 80%, /+ p out = 80 - 20% 6. converters meet mil-std-461 specification revisions for conducted emissions c-ce03 and d-/e-/f-ce-102. the actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 7. ef ficiency measure d with all outputs at full load. 8. maximum power dissipation when all outputs are shorted simultaneously . 9. recovery time is measured from applic ation of the transient to point at which v out is within 1% of v out at final value 10. t ransition time >10 s. 1 1. half load to/from full load. 12. the step load specification for the negative auxiliary output is guaranteed by qualification test. it is not an in-line test. 13. measured from release of inhibit or input voltage step. 14. applies to each auxiliary . electrical charac teristics: -55c to +125c case, 50 v in, 100% load, free run, unless otherwise specified. page 28 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 50 volt i nput s peci f ications smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
0.0 - 100 .0 - 20 .0 - 40 .0 - 60 .0 - 80 .0 100 1 k 10 k 100 k -34.3 db smrt single audio rejection attenuation (db) frequency (hz), 28 v in ce03 limit narrowband 90 70 50 30 10 .015 0.1 1 10 50 f igure 8 smrt single mil-std-461c, ce03 emission level (db a) frequency (mhz), 28 v in 0.1 1 10 .01 100 80 60 40 20 ce102 ac and dc limits f igure 9 smrt single mil-std-461 d-f , ce102 emission level (db v) frequency (mhz), 28 v in f igure 10 page 29 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters smrt28 rev aj - 2016.05.03 s ingle o utput r epresentati v e p lot s crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
f igure 11 smrt2805s representative of single output line t ransient 100 mv/div 20 v/div vin vout 100 s/div v in 19 t o 56 v , full resistive load f igure 13 smrt2805s representative of single output load t ransient 100 mv/div 1 ms/div load 50 - 100 - 50%, 28 v in f igure 15 smrt2805s representative of single t urn on delay smr t2805s representative of single t urn on delay 2 v/div 20 v/div vin vout 4 ms/div full resistive load, 28 v in f igure 12 smrt2805s representative of single output line t ransient 100 mv/div 20 v/div vin vout 100 s/div v in 56 to 19 v , full resistive load f igure 14 smrt2805s representative of single output load t ransient 100 mv/div 1 ms/div load 50 - 100 - 50%, 50 v in f igure 16 2 v/div 20 v/div vin vout 4 ms/div full resistive load, 50 v in page 30 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters smrt28 rev aj - 2016.05.03 s ingle o utput r epresentati v e p lot s crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
50 52 54 56 58 60 62 64 66 5 10 15 20 25 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v 50 55 60 65 70 75 5 10 15 20 25 30 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v 50 55 60 65 70 75 80 5 10 15 20 25 30 35 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v f igure 17 f igure 19 f igure 21 f igure 18 f igure 20 f igure 22 smrt283r3s ef ficiency smrt2805s ef ficiency smrt288r7s ef ficiency smrt283r3s gain phase smr t2805s gain phase smr t288r7s gain phase efficiency (%) ef ficiency (%) ef ficiency (%) gain (db) gain (db) gain (db) phase (deg) phase (deg) phase (deg) output power (w atts) output power (w atts) output power (w atts) frequency (hz), 28 v in frequency (hz), 28 v in frequency (hz), 28 v in gain (db) 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 phase ( de g) 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 3.0 khz 0.1 db 72.7 deg 90 .0 45 .0 m2 19.5 khz -13.4 db 0.1 deg gain phase gain (db) 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 phase ( de g) 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 4.9 khz -0.1 db 72.4 deg 90 .0 45 .0 m2 18.9 khz -14.1 db 0.2 deg gain phase gain (db) 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 phase ( de g) 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 1.7 khz 0.1 db 76.2 deg 90 .0 45 .0 m2 13.5 khz -17.3 db 0.0 deg gain phase page 31 of 44 smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
50 55 60 65 70 75 80 5 10 15 20 25 30 35 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v 50 55 60 65 70 75 80 85 5 10 15 20 25 30 35 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v f igure 23 f igure 24 f igure 25 f igure 26 smrt2812s ef ficiency smrt2815s ef ficiency smrt2812s gain phase smr t2815s gain phase efficiency (%) ef ficiency (%) gain (db) gain (db) phase (deg) phase (deg) output power (w atts) output power (w atts) frequency (hz), 28 v in frequency (hz), 28 v in gain (db) 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 phase ( de g) 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 1.7 khz -0.0 db 74.6 deg 90 .0 45 .0 m2 9.6 khz -16.2 db 0.1 deg gain phase 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 821.1 hz 0.0 db 66.7 deg 90 .0 45 .0 m2 14.4 khz 27.2 db 0.1 deg gain phase page 32 of 44 smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
0.0 - 100 .0 - 20 .0 - 40 .0 - 60 .0 - 80 .0 100 1 k 10 k 100 k -20.0 db 0.0 - 100 .0 - 20 .0 - 40 .0 - 60 .0 - 80 .0 100 1 k 10 k 100 k -21.6 db f igure 27 f igure 30 smrt dual audio rejection, v out a smr t dual audio rejection, v out b attenuation (db) attenuation (db) frequency (hz), 28 v in frequency (hz), 28 v in ce03 limit narrowband 90 70 50 30 10 .015 0.1 1 10 50 f igure 28 smrt dual mil-std-461c, ce03 emission level (db a) frequency (mhz), 28 v in 0.1 1 10 .01 100 80 60 40 20 ce102 ac and dc limits f igure 29 smrt dual mil-std-461 d-f , ce102 emission level (db v) frequency (mhz), 28 v in page 33 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters smrt28 rev aj - 2016.05.03 d ual o utput r epresentati v e p lot s crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
f igure 31 smrt2812d representative of dual output line t ransient 200 mv/div 20 v/div vin vout a v out b 100 s/div v in 19 to 56 v , full resistive load f igure 32 smrt2812d representative of dual output line t ransient 200 mv/div 20 v/div vin vout a 100 s/div v in 56 to 19 v , full resistive load v out b f igure 33 smrt2812d representative of dual output load t ransient 200 mv/div vout a v out b 1 ms/div load 50 - 100 - 50%, 28 v in f igure 34 smrt2812d representative of dual t urn on delay smr t2812d representative of dual t urn on delay 5 v/div 20 v/div vin vout a v out b 4 ms/div full resistive load, 28 v in f igure 35 smrt2812d representative of dual output load t ransient 200 mv/div vout a v out b 1 ms/div load 50 - 100 - 50%, 50 v in f igure 36 5 v/div 20 v/div vin 4 ms/div full resistive load, 50 v in vout a v out b page 34 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters smrt28 rev aj - 2016.05.03 d ual o utput r epresentati v e p lot s crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
50 55 60 65 70 75 5 10 15 20 25 30 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v 50 55 60 65 70 75 80 5 10 15 20 25 30 35 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v 50 55 60 65 70 75 80 85 5 10 15 20 25 30 35 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v f igure 37 f igure 38 f igure 41 f igure 42 f igure 39 f igure 40 smrt2805d ef ficiency smrt2812d ef ficiency smrt2815d ef ficiency smrt2805d gain phase smr t2812d gain phase smr t2815d gain phase efficiency (%) ef ficiency (%) ef ficiency (%) gain (db) gain (db) gain (db) phase (deg) phase (deg) phase (deg) output power (w atts) output power (w atts) output power (w atts) frequency (hz), 28 v in frequency (hz), 28 v in frequency (hz), 28 v in gain (db) 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 phase ( de g) 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 5.0 khz 0.1 db 78.9 deg 90 .0 45 .0 m2 20.8 khz -11.8 db -0.0 deg gain phase gain (db) 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 phase ( de g) 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 6.7 khz -0.3 db 49.4 deg 90 .0 45 .0 m2 13.5 khz -8.6 db -0.1 deg gain phase gain (db) 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 phase ( de g) 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 4.7 khz -0.1 db 60.2 deg 90 .0 45 .0 m2 15.4 khz -13.8 db 0.2 deg gain phase page 35 of 44 smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
0.0 - 100 .0 - 20 .0 - 40 .0 - 60 .0 - 80 .0 100 1 k 10 k 100 k -42.5 db 0.0 - 100 .0 - 20 .0 - 40 .0 - 60 .0 - 80 .0 100 1 k 10 k 100 k -34.9 db smrt t riple audio rejection, main smr t t riple audio rejection, +aux attenuation (db) attenuation (db) frequency (hz), 28 v in frequency (hz), 28 v in ce03 limit narrowband 90 70 50 30 10 .015 0.1 1 10 50 f igure 43 f igure 44 f igure 45 f igure 46 smrt t riple mil-std-461c, ce03 emission level (db a) frequency (mhz), 28 v in 0.1 1 10 .01 100 80 60 40 20 ce102 ac and dc limits smrt t riple mil-std-461 d-f , ce102 emission level (db v) frequency (mhz), 28 v in page 36 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters smrt28 rev aj - 2016.05.03 t riple o utput r epresentati v e p lot s crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
200 mv/div 20 v/div vin main +aux 100 s/div v in 19 to 56 v , full resistive load 200 mv/div 20 v/div vin main +aux 100 s/div v in 56 to 19 v , full resistive load -4.0% -3.0% -2.0% -1.0% 0.0% 1.0% 2.0% 3.0% 20% 30% 40% 50% 60% 70% 80% -aux voltage change (%) aux load (%) cross regulation (vin = 28 volts) -55 c 25 c 125 c -55 c 25 c 125 c -8.0% -6.0% -4.0% -2.0% 0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 20% 30% 40% 50% 60% 70% 80% -aux voltage change (%) aux load (%) cross regulation (vin = 28 volts) -55 c 25 c 125 c -55 c 25 c 125 c -5.0% -4.0% -3.0% -2.0% -1.0% 0.0% 1.0% 2.0% 3.0% 4.0% 20% 30% 40% 50% 60% 70% 80% -aux voltage change (%) aux load (%) cross regulation !"#$%&%'(%")*+,-% -55 c 25 c 125 c -55 c 25 c 125 c smrt28515t cross regulation smr t28507t cross regulation smr t283r312t cross regulation -aux v oltage change (%) -aux v oltage change (%) -aux v oltage change (%) +aux load (%), 28 v in +aux load (%), 28 v in +aux load (%), 28 v in -55c 25c 125c -55c 25c 125c -55c 25c 125c 100 mv/div 500 mv/div 1 ms/div load 50 - 100 - 50%, 28 v in 10 v/div 10 v/div 20 v/div 20 v/div 2 v/div 2 v/div vin 4 ms/div full resistive load, 28 v in smrt283r312t representative of t riple output load t ransient 100 mv/div 500 mv/div 1 ms/div load 50 - 100 - 50%, 50 v in 4 ms/div full resistive load, 50 v in smrt283r312t representative of t riple output t urn on delay smr t283r312t representative of t riple output t urn on delay smr t283r312t representative of t riple output load t ransient smrt283r312t representative of t riple output line t ransient smrt283r312t representative of t riple output line t ransient f igure 47 f igure 48 f igure 49 f igure 50 f igure 51 f igure 52 f igure 53 f igure 54 f igure 55 main main main +aux +aux +aux -aux -aux -aux vin main +aux -aux -aux 20% fixed, +aux 20% to 80% -aux 20% fixed, +aux 20% to 80% -aux 20% fixed, +aux 20% to 80% -aux 20% to 80% +aux 20% fixed -aux 20% to 80% +aux 20% fixed -aux 20% to 80% +aux 20% fixed page 37 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters smrt28 rev aj - 2016.05.03 tr iple o utput r epresentati v e p lot s crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
50 55 60 65 70 75 5 10 15 20 25 30 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v smrt283r312t ef ficiency efficiency (%) output power (w atts) smrt283r312t gain phase, main v out representative of all 3.3 v main models representative of all 12 v +aux models frequency (hz), 28 v in 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0 .0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 225 .0 - 225. 0 180 .0 135 .0 - 45 .0 - 90 .0 - 135. 0 - 180. 0 100 1 k 10 k m1 m2 90 .0 45 .0 0.0 m1 3.1 khz -0.0 db 74.9 deg m2 22.7 khz -13.7 db 0.1 deg gain phase gain (db) phase (deg) smrt283r312t gain phase, +aux frequency (hz), 28 v in gain (db) 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 p ha se ( de g) 225 .0 - 225 .0 180 .0 135 .0 90 .0 45 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 1.0 khz 0.0 db 69.5 deg m2 19.2 khz -29.5 db 0.1 deg gain phase gain (db) phase (deg) f igure 56 f igure 57 f igure 58 page 38 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters smrt28 rev aj - 2016.05.03 tr iple o utput r epresentati v e p lot s crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
50 55 60 65 70 75 80 5 10 15 20 25 30 efficiency (%) output power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v smrt28512t ef ficiency efficiency (%) output power (w atts) 50 55 60 65 70 75 5 10 15 20 25 30 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v smrt28507t ef ficiency efficiency (%) output power (w atts) smrt28507t gain phase, +aux frequency (hz), 28 v in 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 2.1 khz -0.0 db 76.9 deg 90 .0 45 .0 m2 19.3 khz -19.1 db 0.0 deg gain phase gain (db) phase (deg) 50 55 60 65 70 75 5 10 15 20 25 30 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v f igure 59 f igure 60 f igure 61 f igure 62 smrt283r315t ef ficiency efficiency (%) output power (w atts) page 39 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters smrt28 rev aj - 2016.05.03 tr iple o utput r epresentati v e p lot s crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
50 55 60 65 70 75 80 5 10 15 20 25 30 e ff iciency (%) o utput power (watts) efficiency vin=19 vin=28 vin=50 vin=56 19 v 28 v 50 v 56 v f igure 63 smrt28515t ef ficiency efficiency (%) output power (w atts) f igure 64 smrt28515t gain phase, main v out 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 10 0 1 k 10 k m1 m2 m1 6.0 khz -0.0 db 67.6 deg 90 .0 45 .0 m2 20.1 khz -10.7 db -0.1 deg gain phase gain (db) phase (deg) frequency (hz), 28 v in f igure 65 smrt28515t gain phase, +aux 50 .0 - 50 .0 40 .0 30 .0 20 .0 10 .0 0.0 - 10 .0 - 20 .0 - 30 .0 - 40 .0 225 .0 - 225 .0 180 .0 135 .0 0.0 - 45 .0 - 90 .0 - 135 .0 - 180 .0 100 1 k 10 k m1 m2 m1 750.7 hz 0.0 db 65.8 deg 90 .0 45 .0 m2 18.3 khz -31.9 db -0.2 deg gain phase gain (db) phase (deg) frequency (hz), 28 v in representative of all 5 v main models representative of all 15 v +aux models page 40 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters smrt28 rev aj - 2016.05.03 tr iple o utput r epresentati v e p lot s crane aerospace & electronics power solutions www.craneae.com/interpoint t ypical p erformance p lo t s : v in as specified , 25 c case , 100% load , free run , unless o t herwise specified . t hese are examples for reference only and are no t guaran t eed specifica t ions .
bottom view case s seal hole: 0.135 0.005 (3.43 0.13) angled corner indicates pin 1 6 x 0.135 (3.43) dia. 12 x 0.040 0.002 dia. (1.02 0.05) 1 2 3 4 5 14 13 12 11 10 9 8 1.700 (43.18) 1.500 (38.10) 1.300 (33.02) 1.100 (27.94) 0.900 (22.86) 0.700 (17.78) 0.500 (12.70) 3x 2.075 (52.68) 3x 0.125 (3.15) 2x 0.150 (3.81) 0.00 0.00 2x 2.550 (64.77) 12 x 0.270 max (6.86) 2x 1.550 (39.37) 0.00 materials header cold rolled steel/nickel cover kovar/nickel pins #52 alloy/gold, ceramic seal gold plating of 50 - 150 microinches included in pin diameter seal hole 0.123 0.002 (3.12 0.051) case s, rev e, 2013.05.15 please refer to the numerical dimensions for accuracy. case dimensions in inches (mm) tolerance 0.005 (0.13) for three decimal places 0.01 (0.3) for two decimal places unless otherwise specified caution heat from reflow or wave soldering may damage the device. solder pins individually with heat application not exceeding 300c for 10 seconds per pin weight: 100 gms maximum 2.705 max (68.71) 0.262 (6.65) 1.675 (42.5) 2.205 max (56.01) 0.220 (5.59) 0.050 (1.27) 0.400 max (10.16) f igure 66: c ase s page 41 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 27: e lement e v aluat ion table is for reference only. see individual series' datasheets for specific screening. t able 3: e lement e valuation s pace dc-dc c onverters p rototype , c lass h and c lass k e lement e valuation s pace dc-dc c onverters p rototype , c lass h and c lass k non -qml 1 qml p rototype c lass h c lass k c omponent -l evel t est p erformed /o /h /k m/s 2 m/s 2 p 3 m/s 2 p 3 element electrical n n n n n visual n n n n internal visual n n temperature cycling n n constant acceleration n n interim electrical n burn-in n post burn-in electrical n steady state life n voltage conditioning aging n visual inspection n final electrical n n n n wire bond evaluation n n n n sem n notes 1. non-qml products may not meet all of the requirements of mil-prf-38534. 2. m/s = active components (microcircuit and semiconductor die) 3. p = passive components, class h and k element evaluation. not applicable to space prototype (o) element evaluation. definitions: element evaluation: component testing/screening per mil-std-883 as determined by mil-prf-38534 sem: scanning electron microscopy page 42 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
t able 28: e nvironm ental s creening and rha l evels table is for reference only. see individual series' datasheets for specific screening. t able 4: e nvironmental s creening s pace dc-dc c onverters p rototype , c lass h and c lass k, rha p, l and r e nvironmental s creening s pace dc-dc c onverters p rototype , c lass h and c lass k, rha 1 p, l and r non -qml 2 qml 3 p rototype c lass h c lass k t est p erformed /oo 4 /hp /hl /hr /kp /kl /kr non-destruct wire bond pull, method 2023 n 5 n 5 n 5 n n n pre-cap inspection, method 2017, 2032 n n n n n n n temperature cycle (10 times) (qual 100 times) method 1010, cond. c, -65c to +150c, ambient n n n n n n n constant acceleration method 2001, 3000 g (qual 5000 g) n n n n n n n pind, test method 2020, cond. a n 5 n 5 n 5 n n n pre burn-in test, group a, subgroups 1 and 4 n n 5 n 5 n 5 n n n burn-in method 1015, +125c case, typical 6 96 hours n 160 hours n n n 2 x 160 hours (includes mid-bi test) n n n final electrical test, mil-prf-38534, group a, subgroups 1 and 4: +25c case n subgroups 1 through 6, -55c, +25c, +125c case n n n n n n hermeticity test, method 1014 gross leak, cond. b 2 , kr85 n n n gross leak, cond. c 1 , fluorocarbon n n n n fine leak, cond. b 1 , kr85 n n n fine leak, cond. a 2 , helium n n n n radiography, method 2012 n n n post radiography electrical test, +25c case n 5 n 5 n 5 final visual inspection, method 2009 n n n n n n n rha p: 30 krad(si) total dose 1, 7, 8 n n rha l: 50 krad(si) total dose 1, 7, 8 n n rha r: 100 krad(si) total dose 1, 7, 8 n n see, let 86 mev cm 2 /mg 1, 9 n n n n n n test methods are referenced to mil-std-883 as determined by mil-prf-38534. notes 1. our redmond facility has a dla approved rha plan for interpoint power products. our smd products with rha p, l or r code meet dla requirements. 2. non-qml prototype products may not meet all of the requirements of mil-prf-38534. 3. all processes are qml qualified and performed by certified operators. 4. o in the rha designator position in interpoint model numbers indicates dla rha - defined as no rha. 5. not required by dla but performed to assure product quality. 6. burn-in temperature designed to bring the case temperature to +125c minimum. burn-in is a powered test. 7. high dose rate test. 8. low dose rate test. 9. no destructive events or sel. page 43 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied smrt28 rev aj - 2016.05.03 crane aerospace & electronics power solutions www.craneae.com/interpoint
acronym definition hdr high dose rate ldr low dose rate let linear energy transfer mev megaelectron volts rha radiation hardness assurance see single event effect segr single event gate rupture sel single event latch-up set single event transient seu single event upset tid total ionizing dose t able 29: rha a cronyms smrt28 single, dual and t riple smr t28 rev aj - 2016.05.03. this revision supersedes all previous releases. all technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. crane electronics, inc reserves the right to make changes in products or specifica tions without notice. interpoint is a registered trademark of crane co. and smr t series is a trademark of crane electronics, inc. copyright ? 2005-20 16 crane electronics , inc. all rights reserved. www .craneae.com/interpoint page 44 of 44 s m rt s ingle, d ual and t riple s pace dc - dc c onverters 19-56 volt input C 35 watt C s pace quali f ied crane aerospace & electronics power solutions

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