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Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
Features
* Operating temperature -55 to +125C
parallel operation with current share, up to 3 units (148 watts)
* Qualified to MIL-PRF-38534 Class H and K * Input voltage range 16 to 40 VDC * Fully isolated, magnetic feedback * Fixed high frequency switching * Inhibit function
* Radiation hardness assurance (RHA) to level R 100 kRad(Si) * Transient protection 50 V for 120 ms
VDc OutPut SINgLe 3.3 5 12 15 DuAL 5 12 15
MODeLS
* Remote sense and output trim on single output models * Synchronization input and output * Indefinite short circuit protection * High power density, 85% efficiency
description
The SMFL SeriesTM 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 148 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.
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 feedback 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).
Screening
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 - 3 for more information.
inhibit
DeSign FeatureS
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). The application of intermediate voltages to these pins (1.5 to 10.5 volts) should be avoided.
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
Crane Aerospace & electronics electronics group (Interpoint Brand) POBox97005*RedmondWA98073-9705 425.882.3100*power@crane-eg.com www.craneae.com/interpoint
Sync
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 (see Application Note titled "Inhibit and Synchronization").
current anD Parallel OPeratiOn
Multiple single output SMFL converters may be used in parallel to drive a common load. In this mode of operation the load current is shared by two or three SMFL converters. In current
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.
Page 1 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
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. Whenparalleled,76%ofthetotalcombinedpowerratingsofthe SMFL converters are available at the load. Overload and short circuit performance are not adversely affected during parallel operation. audio rejection *50 dB typical
Operating COnditiOns and CharaCteristiCs
input Voltage range *16 to 40 VDC continuous *50 V for 120 ms transient
output power *40 to 65 watts depending on model
conversion Frequency (-55c to 125c) * Free run mode 600 kHz typical 525 kHz. min, 675 kHz max
Lead soldering temperature (10 sec per lead) *300C storage temperature range (case) *-65C to +150C
synC and inhibit (inh1, inh2)
sync *Sync In Input frequency 525 to 675 Hz. Duty cycle 40% min, 60% max Logic low 0.8 V max Logic high 4.5 V min, 5 V max Referenced to input common *Sync Out Referenced to input common
power dissipation (pd) *14 watts (16 watts SMFL2805S, SMFL2805D) case operating temperature (tc) * -55C to +125C full power
input to output capacitance *150 pF, typical current Limit *125% of full load typical
output Voltage temperature coefficient *100 ppm/C typical
derating output power/current * Linearly from 100% at 125C to 0% at 135C *MFL283R3S: linearly from 100% at 100C to 85% at 125C to 0% at 135C
isolation *100 megohm minimum at 500 V
inhibit (inH1, inH2) *Active low (output disabled) INH1 referenced to input common - Active low 0.8 V max - Inhibit pin current 10 mA max INH2 referenced to output common - Active low 0.5 V max - Inhibit pin current 5 mA max *Active high (output enabled) Open collector (output enabled) Avoid intermediate voltages of 1.5 to 10.5 Open pin voltage - INH1 = 9 to 12 V - INH2 = 9 V max
meChaniCal and envirOnmental
size (maximum) * 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm See case u for dimensions. * Case option V is also available. 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-STD-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 - 3 for more information. Available configurations: OO, HP, KP, HR, KR
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Page 2 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
sinGLe output ModeLs connection diaGraMs - triM, sense and paraLLeL
1 2 3 4 5 6 MSTR/INH2 12 Slave 11 Sense Return Output Common Positive Output Pos. Sense 10 9 8 7 - + RL
28V
+ -
Positive Input Input Common TR1 INH1 Sync Out Sync In
Inhibit Sync In
REMOTE SENSE CONNECTION 1 2 3 4 5 6 Positive Input Input Common TR1 INH1 Sync Out Sync In MSTR/INH2 12 11 Slave 10 Pos. Sense 9 Sense Return 8 Output Common 7 Positive Output
28V
+ -
RA - + RL
Inhibit Sync In
OUTPUT VOLTAGE ADJUST CONNECTION VOUT INCREASE (VOLT) 0.1 0.2 0.3 0.4 0.5 RA (OHMS) 5-V 12-V 70 25 140 210 280 350 50 75 100 125
3.3-V 120 240 360 480 600
15-V 20 40 60 80 100
Figure 1: SenSe cOnnectiOnS anD trim table - Single OutPut mODelS
28V
+ -
1 2 3 4 5 6
Positive Input Input Common TR1 INH1 Sync Out Sync In
MSTR/INH2 12 Slave 11 Pos. Sense Sense Return Positive Output 10 9 8 7 - + RL
Inhibit Sync In
MASTER
Output Common
CONNECT ONLY WHEN 2 SLAVES ARE USED 1 2 3 4 5 6 Positive Input Input Common TR1 INH1 Sync Out Sync In MSTR/INH2 12 Slave 11 Pos. Sense 10 Sense Return 9 Output Common 8 Positive Output 7
SLAVE 1
1 2 3 4 5 6
Positive Input Input Common TR1 INH1 Sync Out Sync In
MSTR/INH2 12 Slave 11 Pos. Sense 10 Sense Return 9 Output Common 8 Positive Output 7
SLAVE 2
Figure 2: Parallel cOnnectiOnS - Single OutPut mODelS
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Page 3 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
pin out
1 2 3 4 5 6 7 8 9 10 11 12 pin Positive Input Triple (TR1) Sync Out Sync In single output dual output Positive Input Triple (TR1) Sync Out Sync In pin 3 4 TR1
pins not in use
description Inhibit 1 (INH1) Sync Out Sync In Sense Return Positive Sense Slave Master/Inhibit 2 action Leave unconnected
Input Common Inhibit 1 (INH1)
Input Common Inhibit 1 (INH1)
5 6 9 10 11 12
Leave unconnected Connect to Input Common
Leave unconnected
Positive Output Sense Return Slave
Output Common Positive Sense Master/Inhibit 2
Positive Output
Connect to appropriate outputs
Output Common Negative Output No connection Slave
Connect to appropriate outputs Leave unconnected Leave unconnected
Master/Inhibit 2
Angled corner indicates pin one.
1 2 3 4 5 6
12
TOP VIEW SMFL (Pin side, marked side)
See cases u and V for dimensions. Case V has the same pin out.
11 10 9 8 7
Figure 3: Pin Out
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Page 4 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
ModeL nuMberinG key
Base Model Input Voltage SMFL 28 05 S V/ K R
sMd nuMbers
Standard Microcircuit drawing (SMd) 5962R0621302KxC 5962R9316302KxC 5962R9316202KxC 5962R9316102KxC 5962R9319102KxC 5962R9319302KxC 5962R9319202KxC SMFL SerieS SiMiLar Part SMFL283R3S/KR SMFL2805S/KR SMFL2812S/KR SMFL2815S/KR SMFL2805D/KR SMFL2812D/KR SMFL2815D/KR
Number of Outputs (S = single, D = dual) Case Option (leave blank for standard case U) Screening Radiation Hardness Assurance (RHA)
Output Voltage
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
on
the LineS beLow, enter one SeLection FroM each category to deterMine the ModeL nuMber.
ModeL seLection
cateGory
sMFL28
Base Model and Input Voltage Output Voltage 1 3r3, 05, 12, 15 Number of Outputs 2 s d
___________
Case/Lead Options 3 (u, leave blank) V
/
_______
Screening 4 o H k RHA 5 o p r
seLection
SMFL28 is the only available option
05, 12, 15
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, 2 and 3 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-PRF38534, which is defined as "no RHA." RHA O is only available with Screening level O. See Screening Table 3 for more information.
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Page 5 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
electrical Characteristics: -55C to +125C Tc, 28 VDC Vin, 100% load, RHA level O, unless otherwise specified.
SINgLe OuTPuT MODeLS
Parameter OutPut VOltage OutPut current OutPut POWer OutPut riPPle 10 khz - 2 mhz line regulatiOn lOaD regulatiOn inPut VOltage inPut current Vin = 16 tO 40 VDc Vin = 16 tO 40 VDc tc = -55c tO +125c Vin = 16 tO 40 VDc nO lOaD tO Full cOntinuOuS nO lOaD inhibiteD - inh1 inhibiteD - inh2 inPut riPPle eFFiciency lOaD Fault 10 khz - 10 mhz tc = -55c tO +125c tc = 25c tc = 25c cOnDitiOnS
SMFL283R3S
MIN 3.21 0 0 -- -- -- -- 16 -- -- -- -- -- 71 69 -- TYP 3.30 -- -- 10 10 0 -- 28 -- 70 9 35 30 -- -- 12.5 1.5 -- -- -- -- -- -- 200 1.5 250 200 3.5 -- MAx 3.39 12.12 40 35 50 20 40 40 50 100 14 70 50 -- -- 16 6 300 3.0 300 300 10 1000 -- -- -- -- -- -- MIN
SMFL2805S
TYP 5.00 -- -- 15 30 0 -- 28 -- 70 9 35 30 78 -- 12.5 1.5 250 1.5 250 200 3.5 -- MAx 5.13 10 50 35 50 20 20 40 50 120 14 70 50 -- -- 18 4 350 3.0 300 300 6 1000 4.87 0 0 -- -- -- -- 16 -- -- -- -- -- 75 73 --
unitS VDc a W mV p-p mV mV VDc V mA mA p-p % W ms mV pk ms mV pk s ms F
TRANSIeNT120 ms 1,2
ShOrt circuit POWer DiSSiPatiOn recOVery 1 50% - 100% - 50% tranSient recOVery 1, 3 16 - 40 -16 VDc tranSient 4 recOVery Delay tc = 25c
SteP lOaD reSPOnSe
SteP line reSPOnSe 1, 3 Start-uP 5
CAPACITIVe LOAD 6
Notes 1. Guaranteed by design, not tested. 2. unit 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 VOuT is within 1% of final value.
4. Transition time 100 s 20%. 5. Tested on release from inhibit. 6. Shall not compromise DC performance.
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Page 6 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
SINgLe OuTPuT MODeLS
Parameter OutPut VOltage OutPut current OutPut POWer OutPut riPPle 10 khz - 2 mhz line regulatiOn lOaD regulatiOn inPut VOltage inPut current Vin = 16 tO 40 VDc Vin = 16 tO 40 VDc tc = -55c tO +125c Vin = 16 tO 40 VDc nO lOaD tO Full cOntinuOuS nO lOaD inhibiteD - inh1 inhibiteD - inh2 inPut riPPle eFFiciency lOaD Fault 10 khz - 10 mhz tc = -55c tO +125c tc = 25c tc = 25c cOnDitiOnS MIN 11.76 0 0 -- -- -- -- 16 -- -- -- -- -- 81 79 --
SMFL2812S
TYP 12.00 -- -- 0 45 0 -- 28 -- 50 9 35 30 84 -- 10 1.5 -- -- -- -- -- -- 450 1.5 250 200 3.5 -- MAx 12.24 5 60 75 100 20 40 40 50 100 14 70 50 -- -- 16 4 600 3.0 400 300 6 1000 -- -- -- -- -- -- MIN
SMFL2815S
TYP 15.00 -- -- 30 45 0 -- 28 -- 50 9 35 30 85 -- 10 1.5 500 1.5 250 200 3.5 -- MAx 15.45 4.33 65 85 110 20 20 40 50 100 14 70 50 -- -- 16 4 600 3.0 500 300 6 1000 14.55 0 0 -- -- -- -- 16 -- -- -- -- -- 82 80 --
unitS VDc a W mV p-p mV mV VDc V mA mA p-p % W ms mV pk ms mV pk s ms F
TRANSIeNT 120 ms 1,2
ShOrt circuit POWer DiSSiPatiOn recOVery 1 50% - 100% - 50% tranSient recOVery 1, 3 16 - 40 -16 VDc tranSient 4 recOVery Delay tc = 25c
SteP lOaD reSPOnSe
SteP line reSPOnSe 1, 3 Start-uP 5
CAPACITIVe LOAD 6
Notes 1. Guaranteed by design, not tested. 2. unit 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 VOuT is within 1% of final value.
4. Transition time 100 s 20%. 5. Tested on release from inhibit. 6. Shall not compromise DC performance.
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Page 7 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
electrical Characteristics: -55C to +125C Tc, 28 VDC Vin, 100% load, RHA level O, unless otherwise specified.
DuAL OuTPuT MODeLS 2
Parameter OutPut VOltage Vin 16 tO 40 VDc OutPut current 2, 3 Vin 16 tO 40 VDc OutPut POWer 2 OutPut riPPle line regulatiOn Vin 16 tO 40 VDc lOaD regulatiOn nO lOaD tO Full crOSS regulatiOn tc = 25c inPut VOltage cOnDitiOnS +VOuT eACH OuTPuT TOTAL Vin = 16 to 40 VDC 10 kHz - 2 MHz VOut +VOuT +VOuT -VOuT
See NOTe 4 See NOTe 5
SMFL2805D
MIN 4.85 4.82 0 0 0 -- -- -- -- -- -- -- 16 -- -- -- -- -- 75 73 -- -- -- -- -- -- -- -- TYP 5.00 5.00 -- -- -- 50 0 25 0 25 5 3 28 -- 50 9 35 30 78 -- 12.5 1.5 250 1.5 250 200 3.5 -- MAx 5.15 5.18 7 10 50 100 50 100 50 100 8 6 40 50 120 14 70 50 -- -- 18 4.0 350 3.0 300 300 6 500
SMFL2812D
MIN 11.64 11.58 0 0 0 -- -- -- -- -- -- -- 16 -- -- -- -- -- 81 79 -- -- -- 3.0 -- -- -- -- TYP 12.00 12.00 -- -- -- 50 0 25 0 50 2 2 28 -- 50 9 35 30 84 -- 10 1.5 450 1.5 250 200 3.5 -- MAx 12.36 12.42 3.5 5 60 120 50 100 50 120 4 4 40 50 100 14 70 50 -- -- 16 4.0 600 3.0 400 300 6 500 -- -- -- --
SMFL2815D
MIN 14.55 14.47 0 0 0 -- -- -- -- -- -- -- 16 -- -- -- -- -- 82 80 -- -- -- TYP 15.00 15.00 -- -- -- 50 0 25 0 150 2 2 28 -- 50 9 35 30 85 -- 10 1.5 500 1.5 250 200 3.5 -- MAx 15.45 15.53 3.03 4.33 65 150 50 100 50 150 4 4 40 50 100 14 70 80 -- -- 16 4.0 600 3.0 500 300 6 500
unitS VDc a W mV p-p mV mV
-VOuT
-VOuT
% VDc V
+VOuT TRANSIeNT 120 ms 1, 6 NO LOAD INHIBITeD-INH1 INHIBITeD-INH2
inPut current
mA mA p-p % W ms mV pk ms mV pk s ms F
inPut riPPle current eFFiciency balanceD lOaD lOaD Fault
10 khz - 10 mhz tc = -55c tO +125c tc = 25c
ShOrt circuit POWer DiSSiPatiOn recOVery 1 50% - 100% - 50% tranSient recOVery 1, 8 16 - 40 -16 VDc tranSient recOVery 8 Delay tc = 25c
VOut
SteP lOaD reSPOnSe 7
VOut
SteP line reSPOnSe 1, 7
Start-uP 9
caPacitiVe lOaD 10
Notes 1. Guaranteed by design, not tested. 2. Parallel load share function is not characterized for dual output models. 3. up 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. unit will shut down above approximately 45V but will be undamaged and will restart when voltage drops into normal range. 7. Transition time 100 s 20%. 8. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 9. Tested on release from inhibit. 10. Shall not compromise DC performance.
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Page 8 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
Typical Performance Curves: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
90 85 16V 28V 40V 90 85 90
16V
28V
85
16V 28V
Efficiency (%)
75 70 65 60 10
Efficiency (%)
75 70 65 40V
Efficiency (%)
80
80
80 75 70 65 40V
SMFL2805S & SMFL2805D Efficiency
Output (Watts)
20
30
40
50
60 10
Figure 4
SMFL2812S & SMFL2812D Efficiency
Output Power (Watts)
20
30
40
50
60
60 10
Figure 5
SMFL2815S & SMFL2815D Efficiency
Output Power (Watts)
20
30
40
50
60 65
Figure 6
90 85 16 VIN 28 VIN 40 VIN
0. 20.
Efficiency (%)
80 75 70 65
Attenuation (dB)
100mV/div. 20V/div.
40. 60. 80.
Vout
Vin
60
0
SMFL2828S Efficiency
Output Power (Watts)
10
20 30 40 50 60 70
100. 0.1
SMFL Series Audio Rejection
Frequency (kHz)
1
10
100
Figure 7
Figure 8
SMFL2805S Step Line Response
50 s/div 16 to 40 V
Figure 9
20V/div.
20V/div. 100mV/div.
1ms/div No Load
100% to 50%
Vin
Vin +Vout
100mV/div.
1V/div.
50% to 100%
Vout
-Vout
SMFL2805S Step Load Response
1ms/div
Figure 10
SMFL2805S Turn On Response
Figure 11
SMFL2815D Step Line Response
50 s/div 16 to 40 V
Figure 12
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Page 9 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
Typical Performance Curves: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
8
20V/div.
50% to 100%
-Pout = 32.5W
-Vout Voltage Change (%)
6 4 2 0 -2 -4 -6 -8 30 40
VIN
+Vout
SMFL2805D SMFL2812D SMFL2815D
200mV/div.
5V/div.
100% to 50%
-Vout
SMFL2815D Step Load Response
1ms/div
SMFL2815D Turn On Response
1ms/div No Load
Positive Output Load (% of Total Load) -VOUT with shift in load balance
50
60
70
Figure 13
Figure 14
Cross Regulation
Figure 15
16
Input Voltage (Volts)
15 14 13
SMFL2815S & 15D
SMFL2805S & 5D 12 11 10 SMFL2812S & 12D 20 30 40 50 60 65
Output Power (Watts)
Low Line Dropout
Figure 16
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Page 10 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converter cases
28 VoLt input - 65 Watt
TOP VIEW CASE U* Flanged case, short-leaded
*Does not require designator in Case Option position of model number.
Angled corner indicates pin one. 1.505 (38.23) max. 1.380 (35.05) 1.250 (31.75) 1.050 (26.67) 0.850 (21.59) 0.650 (16.51) 0.450 (11.43) 0.250 (6.35) 0.120 (3.05) 0.000 0.000 1 2 3 4 5 6 12 11 10 9 8 7
0.23 (5.8) Pin Length
0.128 dia (3.25). 0.040 dia (1.02)
Seam Seal
0.400 (10.16) max.
2.880 (73.15) 3.005 (76.33) max.
0.120 (3.05) 0.250 (6.35)
2.750 (69.85)
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
Figure 17: caSe u
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Page 11 of 15 SMFL Rev K - 20101209
0.050 (1.27) 0.000
0.220 (5.59
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converter cases
28 VoLt input - 65 Watt
TOP VIEW CASE V* Flanged case, down leaded
*Designator "V" required in Case Option position of model number.
Angled corner indicates pin one. 1.380 (35.05) 1.250 (31.75) 1.050 (26.67) 0.850 (21.59) 0.650 (16.51) 0.450 (11.43) 0.250 (6.35) 0.120 (3.05) 0.000 0.250 0.010 (6.35 0.3) 2.880 (73.15) 3.005 (76.33) max 0.400 (10.16) max ref: 0.250 0.050 (6.35 1.27) ref: 0.225 (5.72 0.000 0.120 (3.05) 2.750 (69.85) 0.220 (5.59) 0.050 (1.27) 0.000 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)
3.45 (87.6) Reference (lead center to lead center) 0.128 dia (3.25)
Seam Seal
0.040 dia (1.02)
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.
Figure 18: caSe V
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Page 12 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
CLASS H AND K, MIL-PRF-38534 ELEMENT EVALUATION
COmpOnent-level test perFOrmed
spaCe prOtOtype (O) nOn-Qml1 M/S 2 P3
no no N/A no no N/A N/A N/A N/A no no no no N/A no yes no no no no no no no no N/A no no no no no yes yes yes no no no no no no N/A N/A yes yes no no
Class h Qml M/S 2 P3
yes yes N/A no no N/A N/A N/A N/A no no yes yes N/A yes
Class K Qml M/S 2
yes yes yes yes yes yes yes yes yes N/A N/A yes yes yes no
P3
yes yes N/A yes yes N/A N/A N/A N/A yes yes yes yes N/A yes
Element Electrical Element 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 SLAMTM/C-SAM: Input capacitors only (Add'l test, not req. by H or K)
Notes: 1. Non-QML products do not meet all of the requirements of MIL-PRF-38534. 2. M/S = Active components (Microcircuit and Semiconductor Die) 3. P = Passive components Definitions: element evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534 SeM: Scanning electron Microscopy SLAMTM: Scanning Laser Acoustic Microscopy C-SAM: C - Mode Scanning Acoustic Microscopy
Screening table 1: element eValuatiOn
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Page 13 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
CLASS H AND K, MIL-PRF-38534 ENVIRONMENTAL SCREENING
end item-level test perFOrmed Non-destruct bond pull Method 2023 Pre-cap Inspection Method 2017, 2032 Temperature Cycle (10 times) Method 1010, Cond. C, -65C to 150C, ambient Constant Acceleration Method 2001, 3000 g PIND Test Method 2020, Cond. A Pre burn-in test Burn-in Method 1015, 125C case, typical 96 hours 160 hours 2 x 160 hours (includes mid-BI test) Final Electrical Test MIL-PRF-38534 Group A, Subgroups 1 through 6 -55C, +25C, +125C case Radiography Method 2012 Post Radiography Electrical Test Room temperature Hermeticity Test Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C Final visual inspection Method 2009
spaCe prOtOtype (O) nOn-Qml1
no yes
Class h Qml
yes 2 yes
Class K Qml
yes yes
yes yes no yes
yes yes yes 2 yes
yes yes yes yes
yes no no
no yes no
no no yes
yes N/A N/A yes yes yes
yes N/A N/A yes yes yes
yes yes yes 2 yes yes yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes: 1. Space Prototype (O), non-QML products, do not meet all of the requirements of MIL-PRF-38534. 2. Not required by DSCC but performed to assure product quality.
Screening table 2: enVirOnmental Screening
www.craneae.com/interpoint
Page 14 of 15 SMFL Rev K - 20101209
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input - 65 Watt
CLASS H AND K, MIL-PRF-38534 RADIATION HARDNESS ASSURANCE (RHA)
ENVIRONMENTAL SCREENING LEVELS radiation hardneSS aSSurance LeVeLS 1
O
3
SPACE PROTOTYPE (O)
NON-QML2
CLASS H QML
N/A
CLASS K QML
N/A
Standard, no radiation guarantee OO
p Radiation tolerant- Tested lots up to 30 kRad(Si) total dose. SEU 4 guarantee up to 40 MeV-cm2/mg r Radiation tolerant- Tested lots up to 100 kRad(Si) total dose. SEU 4 guarantee up to 40 MeV-cm2/mg
N/A
HP
KP
N/A
HR
KR
Notes: 1. Redmond site, Interpoint, has a DSCC approved Radiation Hardness Assurance plan. Our SMD products with RHA "P" or "R" code meet DSCC requirements. 2. Space Prototype (O), non-QML, products do not meet all of the requirements of MIL-PRF-38534. 3. 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". 4. No upset at the pins.
Screening table 3: raDiatiOn harDneSS aSSurance Screening table 3: raDiatiOn harDneSS aSSurance
SMFL Single and Dual, SMFL Rev K - 20101209. This revision supersedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. SMFL Series is a trademark of Interpoint. Copyright (c) 1999 - 2010 Interpoint Corporation. All rights reserved. www.craneae.com/interpoint
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