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description the interpoint ? mfk series? of high frequency dc-dc converters offers a wide input voltage range of 16 to 50 volts and up to 25 watts of output power. the converters are capable of withstanding transients of up to 65 volts for up to one second. the package is a hermetically sealed, welded metal case. flanged and non-flanged models are available. c onverter d esign the mfk converters are switching regulators that use a quasi- square wave, single-ended forward converter design with a constant switching frequency of 500 khz, typical. isolation between input and output circuits is provided with transformers in the forward path and in the feedback control loop. h igher p ower d ensity the mfk series offers a new standard of performance for small size and high power density. at just 0.360 inch high and a total footprint of 1.7 in 2 , this low profile package offers a total power density of up to 42 watts per cubic inch. l ow n oise , h igh a udio r ejection the mfk converters current mode control system provides excellent dynamic response and noise rejection. audio rejection is typically 50 db. output voltage response for a 50% to 100% step load transient is as low as 4% with a 400 s recovery time. the mfk series converters are provided with internal filtering capacitors that help reduce the need for external components in normal operation. use our fmce-0328 emi filter to meet the requirements of mil-std-461c ce03 and cs01 and/or mil-std-461d, e and f ce102 and cs101 levels of conducted emissions. i nhibit f unction mfk converters provide an inhibit terminal that can be used to disable internal switching, resulting in no output and very low quiescent input current. the converter is inhibited when the inhibit pin is pulled below 0.8 volts. the converter is enabled when the pin, which is internally connected to a pull-up current source, is left unconnected or is connected to an open-collector gate. the open circuit voltage associated with the inhibit pin is 8.5 to 12 v. in the inhibit mode, a maximum of 4 ma must be sunk from the inhibit pin. see table 5 on page 5 for more information. s ynchroniza tion a synchronization feature is included with the mfk series that allows the user to match the switching frequency of the converter to the frequency of a system clock. synchronization allows the user to adjust the nominal 500 khz operating frequency to any frequency within the range of 450 khz to 550 khz. this is initiated by applying an active high input of the desired frequency to the sync pin. see table 5 on page 5 for more information. s h ort c ircuit p rotection mfk series converters provide short circuit protection by restricting the output current to approximately 115% of the full load output current. u nd ervol t age l ockout undervoltage lockout with hysteresis prevents the converters from operating below approximately 15 volts input voltage to keep system current levels smooth, especially during initialization or re-start operations. features ? 16 to 50 volt inp ut ? up to 87% efficiency , 42 w/in 3 ? available to class h, mil-prf-38534 ? undervoltage lockout ? -55c to +125c operation ? fully isolated ? magnetic feedback ? fixed frequency , 500 khz typical ? 65 volts for up to 1 sec. transient protection ? inhibit and sync function ? output short circuit protection mo de l s o utput v oltage (v) single dual 1.8 5 2.5 7 3.3 12 5 15 5.2 5.7 12 15 28 mfk s ingle and d ual d c- d c converters page 1 of 23 16 t o 50 v ol ts i n pu t C 25 w a tt mfk rev aj - 2016.04.25 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
f igure 1: mfk s ingle b lock d iagram f igure 2: mfk d ual b lock d iagram positive input input common output common positive output + _ + _ secondary v cc v s+ v ref secondary v cc pwm controller v in uvlo fet driver bias supply inhibit sync in positive input input common output common negative output positive output + _ + _ secondary v cc v s+ v ref secondary v cc pwm controller v in uvlo fet driver bias supply inhibit sync in mfk s ingle and d ual d c- d c converters page 2 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
f igure 3: mfk s ingle p in o ut ( except 28 s) f igure 4: mfk d ual p in o ut ( includes 28 s) bottom view singles except 28 non-flanged or flanged dot on top of cover indicates pin one. dotted line outlines flanged package option. 1 2 3 4 7 6 5 bottom view 28 single and all duals non-flanged or flanged dot on top of cover indicates pin one. dotted line outlines flanged package option. 1 2 3 4 5 8 7 6 p i n o u t pin s ingle output mfk2828 s d ual output 1 inhibit inhibit inhibit 2 output common positive output positive output 3 positive output no connection output common 4 sync in output common negative output 5 case ground sync in sync in 6 input common case ground case ground 7 positive input input common input common 8 positive input positive input p i ns n o t i n use inhibit leave unconnected sync leave unconnected t able 1: p in o ut t able 2: p ins n ot in u se see figure 32 on page 18 and figure 34 on page 20 for dimensions. see figure 33 on page 19 and figure 35 on page 21 for dimensions. mfk s ingle and d ual d c- d c converters page 3 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
mo de l n um be ri ng k ey mfk 28 12 d f / 883 base model input voltage output voltage screening number of outputs (s = single, d = dual) (r = decimal point, 3r3 = 3.3 vout) (standard screening has no designator in this position.) case option (non-flanged case has no designator in this position) s m d num be r s s tandard m icrocircuit d rawing (sm d ) mfk s imilar p art 5962-1421001hxc mfk281r8s/883 5962-1421002hxc mfk282r5s/883 5962-1421003hxc mfk283r3s/883 5962-1421004hxc mfk2805s/883 5962-1421009hxc in process mfk285r2s/883 5962-1421005hxc mfk285r7s/883 5962-1421006hxc mfk2812s/883 5962-1421007hxc mfk2815s/883 5962-1421008htc mfk2828s/883 5962-1421 101hxc mfk2805d/883 5962-1421102hxc mfk2807d/883 5962-1421103hxc mfk2812d/883 5962-1421104hxc mfk2815d/883 the smd number shown is for class h screening, non-flanged. to indicate the flanged case option change the x to z in the smd number (t to u for 28 single). for exact specifications for an smd product, refer to the smd drawing. smds can be downloaded from: http://www.landandmaritime.dla.mil/programs/smcr mo de l num be r o p t io ns t o determine the model number enter one option from each categ o ry in the form below . c a teg or y b ase model and input v oltage output v oltage 1 n umber of outputs 2 case options 3 s creening 4 o ptions mfk28 1r8, 2r5, 3r3, 05 5r2, 5r7, 12, 15, 28 s (non-flanged, leave blank) (standard, leave blank) 05, 07, 12, 15 d f (flanged) es 883 f ill i n for m o de l # mfk28 / notes 1. output voltage: an r indicates a decimal point. 1r8 is 1.8 volts out. the values of 1.8, 2.5, 3.3 and 5.7 volts are only available in single output models. 2. number of outputs: s is a single output and d is a dual output. 3. case options: for the standard case, figure 32 on page 18 or figure 33 on page 19, leave the case option blank. for the flanged case option, figure 34 on page 20 or figure 35 on page 21, insert the letter f in the case option position. 4. screening: for standard screening leave the screening option blank. for other screening options, insert the desired screening level. for more information see table 1 1 on page 22 and table 12 on page 23. f igure 5: m odel n umbering k ey t able 3: s md c ross r eference t able 4: m odel n umber o ptions mfk s ingle and d ual d c- d c converters page 4 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t able 5: o pera ting c onditions , a ll m odels , 25c case , 28 v in , 100% load , unless oth erwise specified . notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. passes 2000 volts. 3. dual outputs: the over-current limit will trigger when the sum of the currents from both outputs reaches 115% (typical value) of the maximum rated total current of both outputs. 4. tested with inhibit pin pulled to ground. 5. an external inhibit interface should be used to pull the inhibit low or leave it floating. the inhibit pin can be left unconnected if not used. mfk s eries a ll m odels parameter conditions min typ max units l ead s oldering t emperature 1 10 seconds max . 300 c storage temperature 1 -65 +150 c case operating full power -55 +125 c temperature absolute 1 -55 +135 derating output power/current 1 linearly from 100% at 125c to 0% at 135c esd rating 1 mil-std-883, m ethod 3015 2000 - 3999 2 v mil-prf-38534, 3.9.5.8.2 c lass 2 isolation: input t o output or any 500 vdc a t 25c 100 megohms pin t o case except case pin u ndervoltage lockout 15 v current limit 3 % of full load 115 % audio rejection 1 50 db conversion frequency free run -55c to +125c 430 570 khz synchronization input frequency 450 550 khz duty cycle 1 40 60 % active low 0.8 v active high 1 4.5 5.0 referenced to input common if not used leave unconnected inhibit active low (output disabled) inhibit pin pulled low 4 0.8 v do not apply a voltage to the inhibit pin 5 inhibit pin source 4 ma current 1 referenced to input common inhibit active high (output enabled) inhibit pin condition open collector or do not apply a voltage to the inhibit pin 5 unconnected open pin voltage 1 8.5 12 v for mean time between failures (mtbf) contact applications engineering powerapps@crane-eg.com +1 425-882-3100 option 7 mfk s ingle and d ual d c- d c converters page 5 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t able 6: e lectrical c haracteristics -55c to +125c case , 28 v in , 100% load , free run , unless oth erwise specified . notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. a minimum load of 20% is recommended. 3. short circuit measured with 1% 10 milliohm resistive load. 4. indefinite short circuit protection not guaranteed above 125c. 5. recovery and startup times are measured from application of the transient or change in condition to the point at which v out is within 1% of final value. c l = 0. 6. step load transition time 10 s 1 s. 7. step line transition time 100 s 20 s. 8. tested on release from inhibit. single output models mfk281r8s mfk282r5s mfk283r3s units parameter conditions min typ max min typ max min typ max output voltage 1.74 1.80 1.86 2.42 2.50 2.58 3.20 3.30 3.40 v output current 2 v in = 16 to 50 5.56 5.0 4.55 a output power 2 v in = 16 to 50 10 12.5 15 w output ripple t c = 25c 30 60 30 60 25 60 mv p-p 10 khz - 20 mhz t c = -55c to +125c 35 80 35 80 30 80 line regulation v in = 16 to 50 5 20 5 20 5 20 mv load regulation no load to full 10 25 5 25 5 25 mv input voltage continuous 16 28 50 16 28 50 16 28 50 v no load to full transient 1 sec. 1 65 65 65 v input current no load 25 50 25 50 25 50 ma inhibited 2.5 4 2.5 4 2.5 4 input ripple current 10 khz - 20 mhz 30 75 30 80 30 80 ma p-p efficiency tc = 25c 69 72 73 76 76 79 % tc = -55c to +125c 67 71 74 load fault 3, 4 power dissipation 8.5 8.5 8.5 w short circuit recovery 1 20 20 20 ms step load response 5, 6 transient 125 200 125 200 125 200 mv pk 50% - 100% - 50% recovery 200 400 100 300 200 300 s step line r esponse 1, 5, 7 transient 350 350 350 mv pk 16 - 50 - 16 v recovery 0.5 1 0.5 1 0.5 1 ms start-up 8 delay 25 25 25 ms full load overshoot 1 50 50 50 mv pk capacitive load 1 no effect on dc 2000 2000 2000 f t c = 25c performance mfk s ingle and d ual d c- d c converters page 6 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t able 7: e lectrical c haracteristics -55c to +125c case , 28 v in , 100% load , free run , unless oth erwise specified . single output models mfk2805s mfk285r2s mfk285r7s units parameter conditions min typ max min typ max min typ max output voltage 4.85 5.00 5.15 5.05 5.2 5.35 5.52 5.70 5.87 v output current 2 v in = 16 to 50 4.0 4 4.0 a output power 2 v in = 16 to 50 20 20.8 22.8 w output ripple t c = 25c 40 80 40 80 40 80 mv p-p 10 khz - 20 mhz t c = -55c to +125c 100 100 100 line regulation v in = 16 to 50 5 20 5 20 5 20 mv load regulation no load to full 5 25 5 25 5 25 mv input voltage continuous 16 28 50 16 28 50 16 28 50 v no load to full transient 1 sec. 1 65 65 65 v input current no load 25 50 25 50 25 50 ma inhibited 2.4 4 2.4 4 2.4 4 input ripple current 10 khz - 20 mhz 40 85 40 85 40 85 ma p-p efficiency t c = 25c 79 82 79 82 79 82 % t c = -55c to + 125c 77 77 77 load fault 3, 4 power dissipation 6 8.5 6 8.5 6 8.5 w short circuit recovery 1 20 20 20 ms step load response 5, 6 transient 400 400 400 mv pk 50% - 100% - 50% recovery 300 300 300 s step line r esponse 1, 5, 7 transient 500 500 570 mv pk 16 - 50 - 16 v recovery 0.5 1 0.5 1 0.5 1 ms start-up 8 delay 25 25 25 ms full load overshoot 1 0 50 0 50 0 50 mv pk capacitive load 1 no effect on dc 2000 2000 2000 f t c = 25c performance notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. a minimum load of 20% is recommended. 3. short circuit measured with 1% 10 milliohm resistive load. 4. indefinite short circuit protection not guaranteed above 125c. 5. recovery and startup times are measured from application of the transient or change in condition to the point at which v out is within 1% of final value. c l = 0. 6. step load transition time 10 s 1 s. 7. step line transition time 100 s 20 s. 8. tested on release from inhibit. mfk s ingle and d ual d c- d c converters page 7 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
single output models mfk2812s mfk2815s mfk2828s units parameter conditions min typ max min typ max min typ max output voltage 11.76 12.00 12.24 14.70 15.00 15.30 27.16 28.00 28.84 v output current 2 v in = 16 to 50 2.08 1.67 0.89 a output power 2 v in = 16 to 50 25 25 25 w output ripple t c = 25c 35 80 40 80 80 150 mv p-p 10 khz - 20 mhz t c = -55c to +125c 100 50 100 100 200 line regulation v in = 16 to 50 5 20 5 20 150 280 mv load regulation no load to full 5 20 5 20 150 280 mv input voltage continuous 16 28 50 16 28 50 16 28 50 v no load to full transient 1 sec. 1 65 65 65 v input current no load 20 50 20 50 30 55 ma inhibited 2.5 4 2.5 4 2.5 4 input ripple current 10 khz - 20 mhz 45 90 50 110 50 100 ma p-p efficiency t c = 25c 83 86 84 87 81 84 % t c = -55c to + 125c 81 82 80 load fault 3, 4 power dissipation 6 8.5 6 8 6 8.5 w short circuit recovery 1 20 20 20 ms step load response 5, 6 transient 350 500 400 600 900 1200 mv pk 50% - 100% - 50% recovery 300 500 300 500 500 600 s step line r esponse 1, 5, 7 transient 1300 1500 2800 mv pk 16 - 50 - 16 v recovery 0.5 1 0.5 1 0.5 1 ms start-up 8 delay 25 25 25 ms full load overshoot 1 0 120 0 150 0 280 mv pk capacitive load 1 no effect on dc 2000 2000 1000 f t c = 25c performance t able 8: e lectrical c haracteristics -55c to +125c case , 28 v in , 100% load , free run , unless oth erwise specified . notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. a minimum load of 20% is recommended. 3. short circuit measured with 1% 10 milliohm resistive load. 4. indefinite short circuit protection not guaranteed above 125c. 5. recovery and startup times are measured from application of the transient or change in condition to the point at which v out is within 1% of final value. c l = 0. 6. step load transition time 10 s 1 s 7. step line transition time 100 s 20 s. 8. tested on release from inhibit. mfk s ingle and d ual d c- d c converters page 8 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t able 9: e lectrical c haracteristics -55c to +125c case , 28 v in , 100% load , free run , unless oth erwise specified . dual output models mfk2805d mfk2807d units parameter conditions min typ max min typ max output voltage + v out 4.85 5.00 5.15 6.86 7.00 7.14 v - v out 4.82 5.00 5.18 6.83 7.00 7.17 output current 2, 3 either output 2.0 2.80 1.5 2.10 a v in = 16 to 50 v t otal output 4.0 3.0 output power 2, 3 either output 10 18 10.5 18.9 w v in = 16 to 50 v t otal output 20 21 output ripple t c = 25c 80 70 mv p-p v out , 10 khz - 20 mhz t c = -55c to +125c 90 80 line regula tion + v out 5 20 5 20 mv v in = 16 to 50 v - v out 20 100 20 100 load regulation + v out 5 20 5 20 mv nl t o f ull , b alanced - v out 35 250 50 250 cross regulation 4 t c = 25c 360 400 mv input voltage continuous 16 28 50 16 28 50 v transient 1 sec. 1 65 65 v input current no load 30 50 30 50 ma inhibited 2.5 4 2.5 4 input ripple current 10 khz - 20 mhz 35 70 35 70 ma p-p efficiency t c = 25c 78 81 81 83 % t c = -55c t o +125c 76 79 load fault 5, 6 power dissipation 6 8.5 6 8 w s hort c ircuit recover y 1 15 20 15 20 ms step load response 7, 8, 9 transient v out 100 450 125 500 mv pk 50%-100%-50%, b alanced l oads recover y 200 500 200 500 s step line response 1, 7, 10 transient 500 700 mv pk v out , v in = 16 - 50 - 16 v recovery 0.5 1 0.5 1 ms start-up 11 delay 20 20 ms overshoot 1 0 50 0 70 mv pk capacitive load 1, 12 no effect on dc 1000 1000 f t c = 25c performance notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. up to 70% of the total output power is available from either output providing the opposite output is simultaneously carrying 30% of the total output power. 3. recommended minimum load is 20% total load (sum of both outputs). 4. ef fect on Cvout for the following conditions: +po = 30% to 70%; - po = 70% to 30% 5. short circuit measured with 1% 10 milliohm resistive load. 6. indefinite short circuit protection not guaranteed above 125c (case) 7. recovery and startup times are measured from application of the transient or change in condition to the point at which v out is within 1% of final value. c l = 0. 8. response of either output with the opposite output held at half of the total output power . 9. step load transition time 10 s 1 s. 10. step line transition time >100 s. 11. tested on release from inhibit. 12. each output. mfk s ingle and d ual d c- d c converters page 9 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
dual output models mfk2812d mfk2815d units parameter conditions min typ max min typ max output voltage + v out 11.76 12.00 12.24 14.70 15.00 15.30 v - v out 11.70 12.00 12.30 14.63 15.00 15.38 output current 2, 3 either output 1.04 1.45 0.833 1.16 a v in = 16 to 50 v t otal output 2.08 1.66 output power 2, 3 either output 12.5 22.5 12.5 22.5 w v in = 16 to 50 v t otal output 25 25 output ripple t c = 25c 90 90 mv p-p v out , 10 khz - 20 mhz t c = -55c to +125c 90 90 line regula tion + v out 5 20 5 20 mv v in = 16 to 50 v - v out 20 150 20 150 load regulation + v out 5 20 5 20 mv nl t o f ull , b alanced - v out 60 250 100 250 cross regulation 4 t c = 25c 700 800 mv input voltage continuous 16 28 50 16 28 50 v transient 1 sec. 1 65 65 v input current no load 30 50 30 50 ma inhibited 2.5 4 2.5 4 input ripple current 10 khz - 20 mhz 50 100 40 100 ma p-p efficiency t c = 25c 82 85 83 86 % t c = -55c t o +125c 80 81 load fault 5, 6 power dissipation 5 8 5 8 w s hort c ircuit recover y 1 15 20 15 20 ms step load response 7, 8, 9 transient v out 350 600 400 650 mv pk 50%-100%-50%, b alanced l oads recover y 250 550 250 550 s step line response 1, 7, 10 transient 1300 1500 mv pk v out , v in = 16 - 50 - 16 v recovery 0.5 1 0.5 1 ms start-up 11 delay 20 20 ms overshoot 1 0 120 0 150 mv pk capacitive load 1, 12 no effect on dc 1000 1000 f t c = 25c performance t able 10: e lectrical c haracteristics -55c to +125c case , 28 v in , 100% load , free run , unless oth erwise specified . notes 1. guaranteed by characterization test and/or analysis. not a production test. 2. up to 70% of the total output power is available from either output providing the opposite output is simultaneously carrying 30% of the total output power. 3. recommended minimum load is 20% total load (sum of both outputs). 4. ef fect on Cvout for the following conditions: +po = 30% to 70%; - po = 70% to 30% 5. short circuit measured with 1% 10 milliohm resistive load. 6. indefinite short circuit protection not guaranteed above 125c (case) 7. recovery and startup times are measured from application of the transient or change in condition to the point at which v out is within 1% of final value. c l = 0. 8. response of either output with the opposite output held at half of the total output power . 9. step load transition time 10 s 1 s. 10. step line transition time >100 s. 11. tested on release from inhibit. 12. each output. mfk s ingle and d ual d c- d c converters page 10 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . mfk s ingle and d ual d c- d c converters page 11 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt frequency (hz) mfk2805s i nput r ipple mfk2805s o utput r ipple 0.0 - 100 .0 - 20 .0 - 40 .0 - 60 .0 - 80 .0 100 1 k 10 k 100 k mfk s ingle a udio r ejection f igure 6 f igure 7 f igure 8 f igure 9 mfk2805s s tep l oad 50% - 100% crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . mfk s ingle and d ual d c- d c converters page 12 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt f igure 10 f igure 11 f igure 12 f igure 13 mfk2805s s tep l ine 16 - 50 v ol ts 50% l oad mfk2805s s tep l ine 50 - 16 v ol ts 50% l oad mfk2805s s tep l oad 100% - 50% mfk2805s s t a rt - up f ull l oad crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . mfk s ingle and d ual d c- d c converters page 13 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt f igure 14 f igure 15 f igure 16 f igure 17 mfk281r8s e fficiency mfk282r5s e fficiency mfk283r3s e fficiency 50 55 60 65 70 75 1 4 7 10 watts output power 20% 100% efficiency (%) 28 v 50 v 42 v 16 v watts output power 20% 100% efficiency (%) 28 v 50 v 16 v 42 v 55 60 65 70 75 80 2.5 7 11.5 16 20.5 25 watts output power 20% 100% efficiency (%) 28 v 50 v 16 v 42 v 60 65 70 75 80 85 3 6 9 12 15 mfk2805s e fficiency 65 70 75 80 85 watts output power 20% 100% efficiency (%) 28 v 50 v 16 v 42 v 2 5 8 11 14 17 20 crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . mfk s ingle and d ual d c- d c converters page 14 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt f igure 18 f igure 19 f igure 20 mfk2812s e fficiency mfk2815s e fficiency mfk2828s e fficiency mfk285r7s efficiency will be added in the future. watts output power 20% 100% efficiency (%) 28 v 50 v 16 v 42 v 65 70 75 80 85 90 2.5 7 11.5 16 20.5 25 watts output power 20% 100% efficiency (%) 28 v 50 v 16 v 42 v 65 70 75 80 85 90 2.5 7 11.5 16 20.5 25 70 75 80 85 90 5 10 15 20 25 watts output power 20% 100% efficiency (%) 28 v 50 v 16 v 42 v crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . mfk s ingle and d ual d c- d c converters page 15 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt mfk2815d s tep l oad 50% - 100% frequency (hz) mfk2815d i nput r ipple mfk2815d o utput r ipple 0.0 - 100 .0 - 20 .0 - 40 .0 - 60 .0 - 80 .0 100 1 k 10 k 100 k mfk d ual a udio r ejection f igure 21 f igure 22 f igure 23 f igure 24 crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . mfk s ingle and d ual d c- d c converters page 16 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt f igure 25 f igure 26 f igure 27 mfk2815d s tep l ine 16 - 50 v ol ts 50% l oad mfk2815d s tep l oad 100% - 50% f igure 28 mfk2815d s tep l ine 50 - 16 v ol ts 50% l oad mfk2815d s t a rt - up f ull l oad crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
t ypical p erformance p lots : 25c case , 28 v in , 100% load , free run , unless oth erwise specified . f or reference onl y , not guaranteed specifica tions . mfk s ingle and d ual d c- d c converters page 17 of 23 mfk rev aj - 2016.04.25 16 t o 50 v ol ts i n pu t C 25 w a tt mfk2805d e fficiency mfk2812d e fficiency f igure 29 f igure 30 watts output power 20% 100% efficiency (%) 28 v 50 v 16 v 42 v 55 60 65 70 75 80 85 2 5 8 11 14 17 20 watts 20% 100% efficiency (%) 28 v 50 v 16 v 42 v output power 60 65 70 75 80 85 2.5 7 1 1.5 16 20.5 25 mfk2807d efficiency will be added in the future. f igure 31 mfk2815d e fficiency 65 70 75 80 85 90 watts output power 20% 100% efficiency (%) 28 v 50 v 16 v 42 v 65 70 75 80 85 90 5 10 15 20 25 crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
0.000 0.205 (5.21) 0.605 (15.34) 0.705 (17.91) 0.905 (22.99) 1.105 (28.07) 0.000 0.160 (4.06) 0.960 (24.38) 0.040 dia. (1.02) 1 2 3 4 6 5 7 bottom view mfk single 0.360 max (9.14) 0.000 0.25 (6.35) seam seal squared corner and dot on top of case indicate pin one. 1.130 max. (28.70) 1.460 max. (37.08) weight: 38 grams maximum 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. materials header cold rolled steel/nickel/gold 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 0.05) please refer to the numerical dimensions for accuracy. case e5, rev g, 2015.04.21 f igure 32: mfk s ingle o utput e xcept 28 vol t single mfk s ingle and d ual d c- d c converters 16 t o 50 v ol ts i n pu t C 25 w a tt page 18 of 23 mfk rev aj - 2016.04.25 crane aerospace & electronics power solutions www.craneae.com/interpoint
0.000 0.205 (5.21) 0.505 (12.83) 0.705 (17.91) 0.905 (22.99) 1.105 (28.07) 0.000 0.160 (4.06) 0.960 (24.38) 0.030 dia. (0.76) 1 2 4 5 7 6 3 8 bottom view mfk dual 0.360 max (9.14) 0.000 0.25 (6.35) seam seal squared corner and dot on top of case indicate pin one. 1.130 max. (28.70) 1.460 max. (37.08) weight: 38 grams maximum 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. materials header cold rolled steel/nickel/gold cover kovar/nickel pins #52 alloy/gold ceramic seal gold plating of 50 - 150 microinches included in pin diameter seal hole: 0.091 0.002 (2.31 0.05) please refer to the numerical dimensions for accuracy. case e6, rev f, 2015.04.21 f igure 33: mfk d ual o utput i ncludes 28 vol t single mfk s ingle and d ual d c- d c converters 16 t o 50 v ol ts i n pu t C 25 w a tt page 19 of 23 mfk rev aj - 2016.04.25 crane aerospace & electronics power solutions www.craneae.com/interpoint
1.590 (40.39) flanged cases: designator "f" required in case option position of model number bottom view mfk single flanged 0.205 (5.21) 0.605 (15.34) 0.705 (17.91) 0.905 (22.99) 1.105 (28.07) 1 2 3 4 7 6 5 0.140 (3.56) squared corner and dot on top of case indicate pin one. (2.005 max (50.93)) 0.560 (14.22) 0.960 (24.38) 0.000 0.160 (4.06) weight: 38 grams maximum 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. materials header cold rolled steel/nickel/gold cover kovar/nickel pins #52 alloy/gold compression glass seal gold plating of 50 - 150 microinches included in pin diameter seal hole: 0.123 0.002 (3.12 0.05) please refer to the numerical dimensions for accuracy. case g5, rev f, 2015.04.21 0.000 2 x r 0.130 (3.30) 2 x dia 0.128 0.002 (3.25 0.05) 0.040 dia. (1.02) 0.360 max (9.14) 0.000 0.25 (6.35) seam seal 1.130 max. (28.70) flange thickness: 0.047 (1.19) base plate detail, edge view top of header f igure 34: mfk s ingle o utput f langed e xcept 28 vol t single mfk s ingle and d ual d c- d c converters 16 t o 50 v ol ts i n pu t C 25 w a tt page 20 of 23 mfk rev aj - 2016.04.25 crane aerospace & electronics power solutions www.craneae.com/interpoint
1.590 (40.39) 0.205 (5.21) 0.505 (12.83) 0.705 (17.91) 0.905 (22.99) 1.105 (28.07) 1 2 3 4 5 8 7 6 0.140 (3.56) 0.000 flanged cases: designator "f" required in case option position of model number bottom view case mfk dual flanged squared corner and dot on top of case indicate pin one. (2.005 max (50.93)) 0.560 (14.22) 0.960 (24.38) 0.000 0.160 (4.06) weight: 38 grams maximum 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. materials header cold rolled steel/nickel/gold cover kovar/nickel pins #52 alloy/gold compression glass seal gold plating of 50 - 150 microinches included in pin diameter seal hole: 0.091 0.002 (2.31 0.05) please refer to the numerical dimensions for accuracy. case g6, rev f, 2015.04.21 2 x r 0.130 (3.30) 2 x dia 0.128 0.002 (3.25 0.05) 0.030 dia. (0.76) 0.360 max (9.14) 0.000 0.25 (6.35) seam seal 1.130 max. (28.70) flange thickness: 0.047 (1.19) base plate detail, edge view top of header f igure 35: mfk d ual o utput f langed i ncludes 28 vol t single mfk s ingle and d ual d c- d c converters 16 t o 50 v ol ts i n pu t C 25 w a tt page 21 of 23 mfk rev aj - 2016.04.25 crane aerospace & electronics power solutions www.craneae.com/interpoint
table is for reference only. see individual series' datasheets for specific screening. t able 8: e lement e valuation h igh r eliability dc-dc c onverters and emi f ilters /883 (c lass h) e lement e valuation 1 h igh r eliability /883 (c lass h) qml c lass h /883 c omponent -l evel t est p erformed m/s 2 p 3 element electrical n n visual n n internal visual n final electrical n n wire bond evaluation n n notes 1. element evaluation does not apply to standard and /es product. 2. m/s = active components (microcircuit and semiconductor die). 3. p = passive components, class h element evaluation. not applicable to standard and /es element evaluation. t able 11: e lement e v alua tion 0). 6 ljoh dg xdo ryhuwhuv page 22 of 23 mfk rev aj - 2016.04.25 7 2 9 2/ 76 , 1 38 7 : 77 crane aerospace & electronics power solutions 28 volt input C 25 watt www.craneae.com/interpoint
table is for reference only. see individual series' datasheets for specific screening. t able 9: e nvironmental s creening h igh r eliability dc-dc c onverters and emi f ilters s tandard , /es and /883 (c lass h) e nvironmental s creening h igh r eliability s tandard , /es and /883 (c lass h) non -qml 1 qml 2 t est p erformed s tandard /es c lass h /883 pre-cap inspection, method 2017, 2032 temperature cycle (10 times) method 1010, cond. c, -65c to +150c, ambient method 1010, cond. b, -55c to +125c, ambient constant acceleration method 2001, 3000 g method 2001, 500 g pind, test method 2020, cond. a 3 burn-in method 1015, +125c case, typical 4 96 hours 160 hours final electrical test, mil-prf-38534, group a, subgroups 1 through 6, -55c, +25c, +125c case subgroups 1 and 4, +25c case hermeticity test gross leak, cond. c 1 , fluorocarbon fine leak, cond. a 2 , helium gross leak, dip final visual inspection, method 2009 test methods are referenced to mil-std-883 as determined by mil-prf-38534. notes 1. standard and es are non-qml products and may not meet all of the requirements of mil-prf-38534. 2. all processes are qml qualified and performed by certified operators. 3. not required by dla but performed to assure product quality. 4. burn-in temperature designed to bring the case temperature to +125c minimum. burn-in is a powered test. t able 12: e nvironment al s creening mfk s ingle and d ual d c- d c converters mfk single and dual, mfk rev aj - 2016.04.25. 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 specifications without notice. interpoint is a registered trademark of crane co. mfk series is a trademark of crane electronics, inc. copyright ? 1999 - 2016 crane electronics, inc. all rights reserved. www.craneae.com/interpoint page 23 of 23 16 t o 50 v ol ts i n pu t C 25 w a tt crane aerospace & electronics power solutions

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