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description the interpoint? smfl series? 28-volt dc/dc converters are rated up to 65 watts output power over a -55 to +125c temperature range with a 28 vdc nominal input. on dual output models up to 70% of the rated output power can be drawn from either the positive or negative outputs. current sharing allows the units to be paralleled for total power of up to 185 watts. the welded, hermetically sealed package is only 3.0 x 1.5 x 0.40 inches, giving the series an overall power density of up to 43 watts per cubic inch. s c r e e n i n g smfl converters, also available on smd drawings, offer the following screening options: space prototype (o), class h, or class k. radiation tolerant to radiation hardness assurance (rha) levels of - (o), p, or r, per mil-prf-38534. interpoint model numbers use an o in the rha designator position to indicate the - (dash) radiation hardness assurance level of mil-prf-38534, which is defined as no rha. see screening tables 1 and 2 d e s i g n f e a t u r e s smfl series converters are switching regulators that use a quasi-square wave, single ended forward converter design with a constant switching frequency of 600 khz typical. isolation between input and output circuits is provided with a transformer in the forward path and a wide bandwidth magnetic coupling in the feedback control loop. the smfl uses a unique dual loop feedback technique that controls output current with an inner feedback loop and an output voltage with a cascaded voltage mode feedback loop. the additional secondary current mode feedback loop improves transient response in a manner similar to primary current mode control and allows for ease of paralleling, but without the cost and complexity. the constant frequency, pulse-width modulated converters use a quasi-square wave single-ended forward design. tight load regulation is achieved through a wide-bandwidth magnetic feed - back circuit. the output voltage on single smfl models can be trimmed to a specific output voltage by adding an external resistor (see figure 1 for resistor values). i n h i b i t the smfl series converters have two inhibit terminals (inh1 and inh2) that can be used to disable power conversion, resulting in a very low quiescent input current and no generation of switching noise. an active low (<0.8 volts) is required to inhibit the converter between inh1 (pin 4) and input common (pin 2). an active low (<0.5 volts) is required to inhibit the converter between inh2 (pin 12) and output common (pin 8). s y n c converters may be synced to an external clock (525 to 675 khz) or to one another by using the sync in or out pins. the nominal free-run switching frequency is 600 khz. c u r r e n t s h a r e a n d p a r a l l e l o p e r a t i o n multiple smfl converters may be used in parallel to drive a common load (see figure 2). only single output models with sense and sns rtn can be used in the share mode. in this mode of operation the load current is shared by two or three features p arallel operation with current share, up to 3 units (up to 185 watts) operating temperature -55 to +125c ? qualified to mil-prf-38534 class h and k ? radiation hardness assurance (rha) to level r 100 krad(si) ? input voltage range 16 to 40 vdc ? transient protection 80 v for 50 ms ? fully isolated, magnetic feedback ? fixed high frequency switching ? remote sense and output trim on single output models ? inhibit function ? synchronization input and output ? indefinite short circuit protection ? high power density with up to 85% efficiency ? models vdc o u t p u t single 3.3 5 12 15 dual 5 12 15 the information in this document is a derivative of documents cleared by the department of defense (dod) office of security review (osr) for public release. osr case numbers 09-s-0996 dated march 13, 2009 and 09-s-1960 dated june 22, 2009. crane aerospace & electronics power solutions smfl s ingle and dual dc/dc converters page 1 of 14 28 vo l t input C 65 watt smfl rev l - 2011.05.04 crane aerospace & electronics crane electronics, inc. power solutions C interpoint po box 97005 ? redmond, wa 98073-9705 425.882.3100 ? power@crane-eg.com www.craneae.com/interpoint
operating c onditio ns and characteristics i nput voltage range 16 to 40 vdc continuous ? 80 v for 50 ms transient ? output power 40 to 65 watts depending on model ? lead s oldering t emperature (10 sec per lead) 300c ? storage temperature r ange (case) -65c to +150c ? power d issipation (pd) 14 watts (16 watts smfl2805s, smfl2805d) ? case operating t emperature (tc) -55c to +125c full power ? derating o utput power/current linearly from 100% at 125c to 0% at 135c ? o utput voltage temperature coefficient 100 ppm/c typical ? i nput to output capacitance 150 pf, typical ? c urrent limit 125% of full load typical ? isolation 100 megohm minimum at 500 v ? audio rejection 50 db typical ? c onversion frequency (-55c to 125c) free run mode 600 khz typical ? 525 khz. min, 675 khz max ? mechanic al and environmental s ize (maximum) 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm). ? case u has short, straight leads. case v has longer leads which are bent down. weight (maximum) 86 grams ? screening space prototype (o), class h, or class k are radiation tolerant to radiation hardness assurance (rha) levels of - (o), p, or r, per mil-prf-38534. interpoint model numbers use an o in the rha designator position to indicate the - (dash) radiation hardness assurance level of mil-prf-38534, which is defined as no rha. available configurations: oo, hp, kp, hr, kr. ? see screening tables 1 and 2 for more information. ? sync and inhibit (inh1, inh2) sync sync in ? input frequency 525 to 675 hz. ? duty cycle 40% min, 60% max ? active low 0.8 v max ? active high 4.5 v min, 5 v max ? referenced to input common ? sync out ? referenced to input common ? inhibit: in h1 and inh2 (do not apply a voltage to the inhibit pin) converter disabled (active low) ? inh1 referenced to input common ? pull voltage to 0.8 v or below by connecting to ground or - other method. inhibit pin source current, 10 ma max - inh2 referenced to output common ? pull voltage to 0.5 v or below by connecting to ground or - other method. inhibit pin source current 5 ma max - converter enabled (active high) ? inhibit pin open or through an open collector ? open pin voltage ? inh1 = 9 to 12 v - inh2 = 9 v max - smfl converters. in current sharing mode, one smfl converter is designated as a master. the slave pin (pin 11) of the master is left unconnected and the mstr/inh2 pin (pin 12) of the master is connected to the slave pin (pin 11) of the slave units. the units designated as slaves have the mstr/inh2 pin (pin 12) connected to the sns rtn pin (pin 9). note that synchronizing the units together is not required for current sharing operation. a second slave unit may be placed in parallel with a master and slave; this requires the tri pin (pin 3) of the master unit to be connected to the sns rtn pin (pin 9). see figure 2 for a block diagram of parallel connections. when paralleled, up to 95% of the total combined power ratings of the smfl converters is available at the load. overload and short circuit performance are not adversely affected during parallel operation. crane aerospace & electronics power solutions www.craneae.com/interpoint page 2 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 watt smfl rev l - 2011.05.04
single output models connection diagrams - trim, sense and parallel r l 1 2 3 4 5 6 remote sense connection 12 1 1 10 9 8 7 ? + 28v ? + inhibit sync in r l 1 2 3 4 5 6 output vo lt age adjus t connection 12 1 1 10 9 8 7 ? + 28v ? + inhibit sync in ra positive input input common tr1 inh1 sync out sync in mstr/inh2 slave pos. sense sense return output common positive output positive input input common tr1 inh1 sync out sync in mstr/inh2 slave pos. sense sense return output common positive output f i g u r e 1: s e n s e c o n n e c t i o n s a n d t r i m t a b l e C s i n g l e o u t p u t m o d e l s r l 1 positive input input common tr1 inh1 sync out sync in 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 connect only when 2 slaves are used 12 11 10 9 8 7 12 11 10 9 8 7 12 11 10 9 8 7 ? + mstr/inh2 slave pos. sense sense return output common positive output master slave 1 slave 2 28v ? + inhibit sync in positive input input common tr1 inh1 sync out sync in mstr/inh2 slave pos. sense sense return output common positive output positive input input common tr1 inh1 sync out sync in mstr/inh2 slave pos. sense sense return output common positive output f i g u r e 2: p a r a l l e l c o n n e c t i o n s C s i n g l e o u t p u t m o d e l s notes: 1. when using remote sense for voltage compensation or when using remote sense for trim, the output will drift over temperature. contact applications engineering for more information powerapps@crane-eg.com. 2. do not exceed the maximum rated power. notes 1. no one converter may carry more than its maximum rated current. 2. although up to 95% of the maximum current of paralleled converters is available, individual converter operation, load and layout may affect the actual current shared. contact applications engineering for more information powerapps@crane-eg.com. v out i n c r e a s e r a (o h m s ) v o l t s 3.3 v 5 v 12 v 15 v 0.1 66 77 27 21 0.2 131 153 55 43 0.3 196 230 82 64 0.4 262 307 109 86 0.5 349 396 139 109 c a e p s www.craneae.com/interpoint page 3 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 watt smfl rev l - 2011.05.04
f i g u r e 3: p in o u t angled corner indicates pin one. 1 2 3 4 5 6 12 11 10 9 8 7 to p view smfl (pin side, marked side) see cases u and v for dimensions. case v has the same pin out. pin out pin single output dual output 1 positive input positive input 2 input common input common 3 triple (tr1) triple (tr1) 4 inhibit 1 (inh1) inhibit 1 (inh1) 5 sync out sync out 6 sync in sync in 7 positive output positive output 8 output common output common 9 sense return negative output 10 positive sense no connection 11 slave slave 12 master/inhibit 2 (mstr/inh2) master/inhibit 2 (mstr/inh2) p ins not in use pin description action 3 tr1 leave unconnected 4 inhibit 1 (inh1) leave unconnected 5 sync out leave unconnected 6 sync in connect to input common 9 sense return connect to appropriate outputs 10 positive sense connect to appropriate outputs 11 slave leave unconnected 12 master/inhibit 2 (mstr/inh2) leave unconnected crane aerospace & electronics power solutions www.craneae.com/interpoint page 4 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 watt smfl rev l - 2011.05.04
model numbering key smfl 28 05 s v / k r base model input voltage output voltage screening number of outputs (s = single, d = dual) case option (leave blank for standard case u) radiation hardness assurance (rha) sm d numbers s t a n d a r d m i c r o c i r c u i t d r a w i n g (sm d) 5962r0621302kxc 5962r9316302kxc 5962r9316202kxc 5962r9316102kxc 5962r9319102kxc 5962r9319302kxc 5962r9319202kxc smfl s e r i e s s i m i l ar p a r t smfl283r3s/kr smfl2805s/kr smfl2812s/kr smfl2815s/kr smfl2805d/kr smfl2812d/kr smfl2815d/kr the smd number shown is for class h screening, non-flanged, and no radiation hardness assurance (rha) level. see the smd for the numbers for other screening and rha levels. for exact specifications for an smd product, refer to the smd drawing. smds can be down-loaded from: http://www.dscc.dla.mil/programs/smcr model selection o n t h e l i n e s b e l o w , e n t e r o n e s e l e c t i o n f r o m e a c h c a t e g o r y t o d e t e r m i n e t h e m o d e l n u m b e r . c ateg ory smfl28 ___________ / _______ base model and input voltage output voltage 1 number of outputs 2 case/lead options 3 screening 4 rha 5 3r 3, 05, 12, 15 s (u, leave blank) o o smfl28 is the only available option 05, 12, 15 d v h p selection k r notes: 1. output voltage: an r indicates a decimal point. 3r3 is 3.3 volts out. 2. number of outputs: s is a single output and d is a dual output 3. case options: for the standard case (case u ) leave the case option blank. for case option v, insert the letter v in the case option position. 4. screening: a screening level of o is a space prototype and is only used with rha o. see screening tables 1 and 2 for more information. 5. rha: interpoint model numbers use an o in the rha designator position to indicate the - (dash) radiation hardness assurance level of mil-prf- 38534, which is defined as no rha. rha o is only available with screening level o. see screening table 2 for more information. crane aerospace & electronics power solutions www.craneae.com/interpoint page 5 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 watt smfl rev l - 2011.05.04
notes 1. guaranteed by design, not tested. 2. u nit will shut down above approximately 45 v but will be undamaged and will restart when voltage drops into normal range. 3. recovery time is measured from application of the transient to point at which v out is within 1% of final value. 4. tested on release from inhibit. 5. shall not compromise dc performance. electrical characteristics: -55c to +125c t c , 28 vdc vin, 100% load, rha level o, unless otherwise specified. single output models smfl283r3s smfl2805s units parameter conditions min typ max min typ max output voltage 3.21 3.30 3.39 4.87 5.00 5.13 vdc output current v in = 16 t o 40 vd c 0 12.12 0 10 a output power v in = 16 t o 40 vd c 0 40 0 50 w output ripple 10 k h z - 2 mh z t c = 25 c 10 35 15 35 mv p-p t c = -55 c to +125 c 10 50 30 50 line regulation v in = 16 to 40 vd c 0 20 0 20 mv load regulation no load t o full 40 20 mv input voltage continuous 16 28 40 16 28 40 vdc transient 50 ms 1,2 80 80 v input current no load 70 100 70 120 inhibite d C inh1 9 14 9 14 ma inhibite d C inh2 35 70 35 70 input ripple 10 k h z - 10 mh z 30 50 30 50 ma p-p efficiency t c = 25 c 71 75 78 % t c = -55 c to +125 c 69 73 loa d fault short circuit power dissipation 12.5 16 12.5 18 w recovery 1 1.5 6 1.5 4 ms step load response 50% - 100% - 50% transient 200 300 250 350 mv pk recovery 1 , 3 1.5 3.0 1.5 3.0 ms step line response 1 , 3 16 - 40 -16 vd c transient 250 300 250 300 mv pk recovery 200 300 200 300 s start-up 4 delay 3.5 10 3.5 6 ms capacitive load 5 t c = 25 c 1000 1000 f crane aerospace & electronics power solutions www.craneae.com/interpoint page 6 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 watt smfl rev l - 2011.05.04
single output models smfl2812s smfl2815s units parameter conditions min typ max min typ max output voltage 11.76 12.00 12.24 14.55 15.00 15.45 vdc output current v in = 16 t o 40 vd c 0 5 0 4.33 a output power v in = 16 t o 40 vd c 0 60 0 65 w output ripple 10 k h z - 2 mh z t c = 25 c 0 75 30 85 mv p-p t c = -55 c to +125 c 45 100 45 110 line regulation v in = 16 to 40 vd c 0 20 0 20 mv load regulation no load t o full 40 20 mv input voltage continuous 16 28 40 16 28 40 vdc transient 50 ms 1,2 80 80 v input current no load 50 100 50 100 inhibite d C inh1 9 14 9 14 ma inhibite d C inh2 35 70 35 70 input ripple 10 k h z - 10 mh z 30 50 30 50 ma p-p efficiency t c = 25 c 81 84 82 85 % t c = -55 c to +125 c 79 80 loa d fault short circuit power dissipation 10 16 10 16 w recovery 1 1.5 4 1.5 4 ms step load response 50% - 100% - 50% transient 450 600 500 600 mv pk recovery 1 , 3 1.5 3.0 1.5 3.0 ms step line response 1 , 3 16 - 40 -16 vd c transient 250 400 250 500 mv pk recovery 200 300 200 300 s start-up 4 delay 3.5 6 3.5 6 ms capacitive load 5 t c = 25 c 1000 1000 f notes 1. guaranteed by design, not tested. 2. u nit will shut down above approximately 45 v but will be undamaged and will restart when voltage drops into normal range. 3. recovery time is measured from application of the transient to point at which v out is within 1% of final value. 4. tested on release from inhibit. 5. shall not compromise dc performance. electrical characteristics: -55c to +125c t c , 28 vdc vin, 100% load, rha level o, unless otherwise specified. crane aerospace & electronics power solutions www.craneae.com/interpoint page 7 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 watt smfl rev l - 2011.05.04
notes 1. guaranteed by design, not tested. 2. parallel load share function is not characterized for dual output models. 3. u p to 70% of the total output power is available from either output providing the opposite output is simultaneously carrying 30% of the total power. 4. effect on negative vout from 50%/50% loads to 70%/30% or 30%/70% loads. 5. effect on negative vout from 50%/50% loads to 50% then 10% load on negative vout. 6. u nit will shut down above approximately 45v but will be undamaged and will restart when voltage drops into normal range. 7. recovery time is measured from application of the transient to point at which vout is within 1% of final value. 8. tested on release from inhibit. 9. shall not compromise dc performance. electrical characteristics: -55c to +125c t c , 28 vdc vin, 100% load, rha level o, unless otherwise specified. dual output models 2 smfl2805d smfl2812d smfl2815d units parameter conditions min typ max min typ max min typ max output voltage v in 16 t o 40 vdc +v out 4.85 5.00 5.15 11.64 12.00 12.36 14.55 15.00 15.45 vdc -v out 4.82 5.00 5.18 11.58 12.00 12.42 14.47 15.00 15.53 output current 2, 3 v in 16 t o 40 vdc each o utput 0 7 0 3.5 0 3.03 a total 0 10 0 5 0 4.33 output power 2 vin = 16 to 40 vdc 0 50 0 60 0 65 w output ripple 10 khz - 2 mhz v out 50 100 50 120 50 150 mv p-p line regulation v in 16 t o 40 vdc +v out 0 50 0 50 0 50 mv -v out 25 100 25 100 25 100 load regulation no load t o full +v out 0 50 0 50 0 50 mv -v out 25 100 50 120 50 150 cross regulation t c = 25 c see note 4 5 8 2 4 2 4 % see note 5 3 6 2 4 2 4 input voltage +v out 16 28 40 16 28 40 16 28 40 vdc transient 50 ms 1, 6 80 80 80 v input current no load 50 120 50 100 50 100 inhibitedCinh1 9 14 9 14 9 14 ma inhibitedCinh2 35 70 35 70 35 70 input ripple current 10 k h z - 10 mh z 30 50 30 50 30 80 ma p-p efficiency t c = 25 c 75 78 81 84 82 85 % balanced load t c = -55 c to +125 c 73 79 80 loa d fault short circuit power dissipation 12.5 18 10 16 10 16 w recovery 1 1.5 4.0 1.5 4.0 1.5 4.0 ms step load response v out 50% - 100% - 50% transient 250 350 450 600 500 600 mv pk recovery 1 , 7 1.5 3.0 3.0 1.5 3.0 1.5 3.0 ms step line response 1 v out 16 - 40 -16 vd c transient 250 300 250 400 250 500 mv pk recovery 7 200 300 200 300 200 300 s start-up 8 delay 3.5 6 3.5 6 3.5 6 ms capacitive load 9 t c = 25 c 500 500 500 f crane aerospace & electronics power solutions www.craneae.com/interpoint page 8 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 watt smfl rev l - 2011.05.04
typical performance curves: 25c tc, 28 vdc vin, 100% load, free run, unless otherwise specified. output (w atts) smfl2805s & smfl2805d ef ficiency ef ficiency (%) 60 90 85 80 75 70 10 20 30 40 50 28v 40v 65 16v f i g u r e 4 output power (w atts) smfl2812s & smfl2812d ef ficiency ef ficiency (%) 60 90 85 80 75 70 10 20 30 40 50 60 40v 16v 65 28v f i g u r e 5 f i g u r e 6 60 90 85 80 75 70 10 20 30 40 50 65 60 65 16v output power (w atts) smfl2815s & smfl2815d ef ficiency ef ficiency (%) 40v 28v f i g u r e 7 f i g u r e 9 60 65 70 75 80 85 90 01 02 03 04 05 06 0 70 40 v in 16 v in 28 v in output power (w atts) smfl2828s ef ficiency ef ficiency (%) 50 s/div 16 to 40 v smfl2805s step line response 100mv/div. 20v/div. v out vi n 0.1 0. 20. 40. 60. 80. 100. attenuation (db) frequency (khz) smfl series audio rejection 11 0 100 f i g u r e 8 100mv/div. 100% to 50% 50% to 100% 1ms/div smfl2805s step load response f i g u r e 10 1ms/div no load smfl2805s turn on response 1v/div. 20v/div. vi n v out f i g u r e 11 f i g u r e 12 50 s/div 16 to 40 v smfl2815d step line response 100mv/div. +v out ?v out vi n 20v/div. crane aerospace & electronics power solutions www.craneae.com/interpoint page 9 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 watt smfl rev l - 2011.05.04
f i g u r e 13 f i g u r e 15 1ms/div smfl2815d step load response 200mv/div. 100% to 50% 50% to 100% ?pout = 32.5w 0 30 40 50 60 ? 8 ? 6 ? 4 ? 2 2 4 6 8 smfl2812d smfl2805d 70 smfl2815d positive output load (% of total load) -v out with shift in load balance cross regulation ?vout voltage change (%) 5v/div. 20v/div. v in ?v out +v out 1ms/div no load smfl2815d turn on response f i g u r e 14 f i g u r e 16 10 20 30 40 50 60 11 15 14 13 12 65 16 smfl2815s & 15d smfl2805s & 5d output power (watts) low line dropout input voltage (volts) smfl2812s & 12d typical performance curves: 25c tc, 28 vdc vin, 100% load, free run, unless otherwise specified. crane aerospace & electronics power solutions www.craneae.com/interpoint page 10 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 att smfl rev l - 2011.05.04
angled corner indicates pin one. 1 2 3 4 5 6 12 11 10 9 8 7 0.000 0.050 (1.27) 0.000 0.120 (3.05) 0.250 (6.35) 0.450 (11.43) 0.650 (16.51) 0.850 (21.59) 1.050 (26.67) 1.250 (31.75) 1.380 (35.05) 1.505 (38.23) max. 0.000 0.120 (3.05) 0.250 (6.35) 2.750 (69.85) 2.880 (73.15) 3.005 (76.33) max. 0.128 dia (3.25). 0.040 dia (1.02) 0.23 (5.8) pin length 0.400 (10.16) max. 0.220 (5.59 top view case u* flanged case, short-leaded seam seal * does not require designator in case option position of model number. 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 seal hole: 0.100 0.002 (2.54 0.05) case u, rev f, 20100503 f i g u r e 17: c a s e u crane aerospace & electronics power solutions wwwcraneaecom/interpoint page o 4 sml s ingle an ual c/c conerter cases 2 v l t pt att sml e l - 20004
0.000 0.220 (5.59) 0.050 (1.27) 0.400 (10.16) max ref: 0.250 0.050 (6.35 1.27) ref: 0.225 (5.72 3.45 (87.6) reference (lead center to lead center) 0.000 0.120 (3.05) 0.250 (6.35) 0.450 (11.43) 0.650 (16.51) 0.850 (21.59) 1.050 (26.67) 1.250 (31.75) 1.380 (35.05) 0.000 0.120 (3.05) 0.250 0.010 (6.35 0.3) 2.750 (69.85) 2.880 (73.15) 0.128 dia (3.25) 0.040 dia (1.02) top view case v* flanged case, down leaded * designator "v" required in case option position of model number. 1 2 3 4 5 6 12 11 10 9 8 7 maximum dimensions: 3.005 x 1.505 (76.33 x 38.23 mm) angled corner indicates pin one. 3.005 (76.33) max 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, compresssion glas seal seal hole: 0.120 0.002 (3.05 0.05) case v, rev f, 2010624 please refer to the numerical dimensions for accuracy. seam seal f i g u r e 18: c a s e v crane aerospace & electronics power solutions wwwcraneaecom/interpoint page 2 o 4 sml s ingle an ual c/c conerter cases 2 v l t pt att sml e l - 20004
s c r e e n i n g t a b l e 1: e l e m e n t e v a l u a t i o n s c r e e n i n g t a b l e 1: e l e m e n t e v a l u a t i o n s c r e e n i n g t a b l e 1 : e l e m e n t e v a l u a t i o n - s p a c e c o n v e r t e r s a n d f i l t e r s c l a s s h a n d k, mil-prf-38534 e l e m e n t e v a l u a t i o n c o m p o n e n t -l e v e l t e s t p e r f o r m e d s p a c e p r o t o t y p e (o) 1 n o n -qml /h c l a s s h qml /k c l a s s k qml m/s 2 m/s 2 p 3 m/s 2 p 3 element electrical ? ? ? ? ? visual ? ? ? ? internal visual ? ? temperature cycling ? ? constant acceleration ? ? interim electrical ? burn-in ? post burn-in electrical ? steady state life ? voltage conditioning aging ? visual inspection ? final electrical ? ? ? ? wire bond evaluation ? ? ? ? sem ? c-sam: input capacitors only addl test, not req. by h or k ? ? 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 c-sam: c - mode scanning acoustic microscopy crane aerospace & electronics power solutions www.craneae.com/interpoint page 13 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 att smfl rev l - 2011.05.04
s c r e e n i n g t a b l e 2: e n v i r o n m e n t a l s c r e e n i n g s c r e e n i n g t a b l e 2: e n v i r o n m e n t a l s c r e e n i n g a n d rha c l a s s h a n d k, mil-prf-38534 e n v i r o n m e n t a l s c r e e n i n g a n d rha 1 non-qml 2 qml 3 c l a s s h c l a s s k t e s t p e r f o r m e d /oo /hp /hr /kp /kr non-destruct bond pull, method 2023 ? 4 ? 4 ? ? pre-cap inspection, method 2017, 2032 ? ? ? ? ? temperature cycle (10 times) method 1010, cond. c, -65c to +150c, ambient ? ? ? ? ? constant acceleration method 2001, 3000 g (qual 5000 g) ? ? ? ? ? pind, test method 2020, cond. a ? 4 ? 4 ? ? pre burn-in test, group a, subgroups 1 and 4 ? ? 4 ? 4 ? ? burn-in method 1015, +125c case, typical 5 96 hours ? 160 hours ? ? 2 x 160 hours (includes mid-bi test) ? ? final electrical test, mil-prf-38534, group a, subgroups 1 and 4: +25c case ? subgroups 1 through 6, -55c, +25c, +125c case ? ? ? ? hermeticity test gross leak, method 1014 ? ? ? ? ? fine leak, method 1014 ? ? ? ? ? radiography, method 2012 ? ? post radiography electrical test, +25c case ? 4 ? 4 final visual inspection, method 2009 ? ? ? ? ? rha p: 30 krad(si) total dose 6 ? ? rha r: 100 krad(si) total dose 6 ? ? see let 40 mev-cm 2 /mg 7 ? ? ? ? test methods are referenced to mil-std-883 as determined by mil-prf-38534. notes: 1. redmond site, interpoint brand, has a dscc approved radiation hardness assurance plan. our smd products with rha p or r code met dscc requirements. 2. space prototypes are non-qml products and may not meet all of the requirements of mil-prf-38534. o in the rha designator position in interpoint model numbers indicates dscc rha - defined as no rha. 3. all processes are qml qualified and performed by certified operators. 4. not required by dscc but performed to assure product quality. 5. burn-in temperature designed to bring the case temperature to +125c minimum. 6. includes low dose rate to the rated total dose (tid) 7. no upset at the pins. crane aerospace & electronics power solutions smfl single and dual, smfl rev l - 2011.05.04. 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. smfl series is a trademark of crane electronics, inc. copyright ? 1999 - 2011 crane electronics, inc. all rights reserved. www.craneae.com/interpoint page 14 of 14 smfl s ingle and dual dc/dc converters 28 vo l t input C 65 att

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