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Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
Features
Parallel operation with current share, up to 3 units (148 watts) * -55 to +125C operation * 16 to 40 VDC input
VDc OutPut
single
MODELS
* 50 V for 120 ms transient protection * Fully isolated, magnetic feedback * Fixed high frequency switching * Remote sense or output trim on single output models * Inhibit function * Sync in and Sync Out
3.3 5 12 15 28
Dual
5 12 15
* Indefinite short circuit protection
Other output voltages available upon request, including 2 V, 8 V and 54 V single.
* High power density, 87% efficiency
description
The MFL SeriesTM 28-volt DC/DC converters are rated up to 65 watts of output power over a -55C 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 output. Current sharing allows the units to be paralleled for total power of up to 148 watts. The welded, hermetically sealed package is only 3.005 x 1.505 x 0.400 inches, giving the series an overall power density of up to 43 watts per cubic inch. The converters are offered with standard screening, "ES" screening, or fully compliant to "883" MIL-PRF-38534 Class H screening. Standard microcircuit drawings (SMD) are available.
inhibit
The MFL 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. A logic low (<0.8 volts) is required to inhibit the converter between INH1 (pin 4) and Input Common (pin 2). A logic 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.
sync
Design Features
The MFL Series converters are switching regulators that use a quasi-square wave, single ended forward converter design with a constant switching frequency of 600 kHz. 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 MFL 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 feedback circuit. The output on single MFL models can be trimmed (see Figure 1 for voltage changes with different resistor values).
Crane Aerospace & Electronics Electronics Group (Interpoint Brand) POBox97005*RedmondWA98073-9705 425.882.3100*power@crane-eg.com www.craneae.com/interpoint
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 on Inhibit and Synchronization).
current anD Parallel OPeratiOn
Multiple MFL converters may be used in parallel to drive a common load (see Figure 2). In this mode of operation the load current is shared by two or three MFL converters. In current sharing mode, one MFL 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). Figure 2 shows the typical setup for two or three units in parallel. Note that synchronizing the units together (though shown in the figure) 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). When paralleled, 76% of the total combined power ratings of the MFL converters are available at the load. Overload and short circuit performance are not adversely affected during parallel operation.
Page 1 of 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
Operating COnditiOns and CharaCteristiCs
input Voltage range *16 to 40 VDC continuous *50 V for 120 msec transient
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
output power *50 to 65 watts depending on model
Lead soldering temperature (10 sec per lead) *300C storage temperature range (case) *-65C to +150C
derate 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 output Voltage temperature coefficient *100 ppm/C typical
case operating temperature (tc) *-55C to +125C full power *-55C to +100C full power (MFL283R3S) ** -55Cto+135Cabsolute
input to output capacitance *150 pF, typical current Limit *125% of full load typical
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
isolation *100 megohm minimum at 500 V audio rejection *50 dB typical
conversion Frequency (-55c to 125c) *Free run mode 600 kHz typical 525 kHz. min, 675 kHz 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 figure 17, case U, for dimensions. Weight (maximum) * 86 grams
screening * Standard, ES, or /883 (Class H, QML). See Screening Tables 1 and 2 for more information.
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Page 2 of 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
sinGLe output ModeLs connection diaGraMs - sense and paraLLeL
1 2 3 4 5 6
28V
+ -
Positive Input Input Common TR1 INH1 Sync Out Sync In
MSTR/INH2 12 Slave 11 Sense Return Output Common Positive Output Pos. Sense 10 9
8 7
Inhibit Sync In
-
+ RL
REMOTE SENSE CONNECTION
28V
+ -
1 2 3 4 5 6
Positive Input Input Common TR1 INH1 Sync Out Sync In
Inhibit Sync In
MSTR/INH2 12 11 Slave 10 Pos. Sense 9 Sense Return 8 Output Common 7 Positive Output
RA
- + RL
OUTPUT VOLTAGE ADJUST CONNECTION VOUT INCREASE (VOLT) 0.1 0.2 0.3 0.4 0.5 RA (OHMS) 5-V 70 140 210 280 350 12-V 25 50 75 100 125 15-V 20 40 60 80 100 3.3-V 120 240 360 480 600
Figure 1: sense cOnnectiOns anD trim table - single OutPut mODels
28V Inhibit Sync In
+ -
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
MASTER
Output Common
- + RL
CONNECT ONLY WHEN 2 SLAVES ARE USED 1 2 3 4 5 6
Positive Input Input Common TR1 INH1 Sync Out Sync In
SLAVE 1
Pos. Sense 10 Sense Return 9 Output Common 8 Positive Output
7
MSTR/INH2 12 Slave 11
1 2 3 4 5 6
Positive Input Input Common TR1 INH1 Sync Out Sync In
SLAVE 2
Pos. Sense 10 Sense Return 9 Output Common 8 Positive Output
7
MSTR/INH2 12 Slave 11
Figure 2: Parallel cOnnectiOns - single OutPut mODels
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Page 3 of 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
pin out 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 pin 3 4 Positive Input Triple (TR1) Sync Out Sync In 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 MFL (Pin side, marked side)
See case U for dimensions.
11 10 9 8 7
Figure 3: Pin Out
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Page 4 of 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
ModeL nuMberinG key
Base Model Input Voltage MFL 55 05 S / ES
sMd nuMbers
STANDARD MICROCIRCUIT DRAWING (SMD) 5962-0621301HXC 5962-9316301HXC 5962-9316201HXC 5962-9316101HXC 5962-9319101HXC 5962-9319201HXC 5962-9319301HXC MFL SERIES SIMILAR PART MFL283R3S/883 MFL2805S/883 MFL2812S/883 MFL2815S/883 MFL2805D/883 MFL2812D/883 MFL2815D/883
Number of Outputs (S = single, D = dual) Screening (Standard screening has no designator in this position.)
Output Voltage
For exact specifications for an SMD product, refer to the SMD drawing. SMDs can be downloaded 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
MFL28
Base Model and Input Voltage Output Voltage 1 3r3, 05, 12, 15 Number of Outputs 2 s d
/
Screening 3 (STANDARD leave blank) es 883
seLection
MFL28 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. Screening: For standard screening leave the screening option blank. For other screening options, insert the desired screening level. For more information see Screening Tables 1 and 2
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Page 5 of 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
Electrical Characteristics: -55C to +125 C TC, 28 VDC VIN, 100% load, free run, 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 nO lOaD tO Full inPut current Vin = 16 tO 40 VDc Vin = 16 tO 40 VDc tc = 25c cOnDitiOns min 3.21 0 0 -- -- -- -- 16 -- -- -- -- -- 73 71 -- -- -- -- -- -- -- -- --
MFL283R3S
tyP 3.30 -- -- 10 10 0 -- 28 -- 70 9 35 15 -- -- 12.5 1.5 200 1.5 250 200 3.5 0 -- maX 3.39 12.12 40 35 50 20 40 40 50 100 14 70 50 -- -- 16 6 400 3.0 300 600 6 25 1000 min 4.87 0 0 -- -- -- -- 16 -- -- -- -- -- 77 75 -- -- -- -- -- -- -- -- --
MFL2805S
tyP 5.00 -- -- 15 30 0 -- 28 -- 70 9 35 15 80 _ 12.5 1.5 250 1.5 250 200 3.5 0 -- 18 4 350 3.0 300 300 6 25 1000 maX 5.13 10 50 35 50 20 20 40 50 120 14 70 50 -- min 11.76 0 0 -- -- -- -- 16 -- -- -- -- -- 83 81 -- -- -- -- -- -- -- -- --
MFL2812S
tyP 12.00 -- -- 30 45 0 -- 28 -- 50 9 35 15 86 maX 12.24 5 60 75 100 20 20 40 50 100 14 70 50 --
units VDc a W mV p-p mV mV VDc V mA
tc = -55c tO +125c Vin = 16 tO 40 VDc nO lOaD tO Full cOntinuOus nO lOaD inhibiteD-inh1 inhibiteD-inh2
TRANSIENT 120 msec.1, 2
inPut riPPle current eFFiciency lOaD Fault
10 khz - 10 mhz tc = -55c tO +125c tc = 25c
mA p-p % W ms mV pk ms mV pk s ms mV pk F
POWer DissiPatiOn shOrt circuit recOVery 1 50% - 100% - 50% transient recOVery 1, 3 16 - 40 -16 VDc transient 4 recOVery 3 Delay
10 1.5 450 1.5 250 200 3.5 0 --
16 4 600 3.0 400 300 6 25 1000
steP lOaD resPOnse steP line resPOnse 1 start-uP 6 caPacitiVe lOaD 1, 6
OVershOOt 1 tc = 25c
Notes 1. Guaranteed by design, not tested. 2. Unit will shut down above approximately 45V but will be undamaged and will restart when voltage drops into normal range. 3. Recovery time is measured from application of the transient to the 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 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
Electrical Characteristics: -55C to +125 C TC, 28 VDC VIN, 100% load, free run, 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 nO lOaD tO Full inPut current Vin = 16 tO 40 VDc Vin= 16 tO 40 VDc tc = 25c cOnDitiOns MIN 14.55 0 0 -- -- -- -- 16 -- -- -- -- -- 84 82 -- -- -- -- -- -- -- -- --
MFL2815S
TYP 15.00 -- -- 30 45 0 0 28 -- 50 9 35 15 87 -- 10 1.5 500 1.5 250 200 3.5 0 -- MAX 15.45 4.33 65 85 110 20 20 40 50 100 14 70 50 -- -- 16 4 600 3.0 500 300 6 50 1000 MIN 27.16 0 0 -- -- -- -- 16 -- -- -- -- -- 83 81 -- -- -- -- -- -- -- -- --
MFL2828S
TYP 28.00 -- -- 100 -- 20 20 28 -- 60 9 35 20 86 -- 7 1.0 800 1.5 250 200 3.5 0 -- MAX 28.84 2.32 65 200 275 60 75 40 50 100 14 70 50 -- -- 14 4 1400 3.0 800 400 6 100 1000
units VDc a W mV p-p mV mV VDc V mA mA p-p % W ms mV pk ms mV pk s ms mV pk F
tc = -55c tO +125c Vin = 16 tO 40 VDc nO lOaD tO Full cOntinuOus nO lOaD inhibiteD-inh1 inhibiteD-inh2
TRANSIENT 120 msec.1, 2
inPut riPPle current eFFiciency lOaD Fault
10 khz - 10 mhz tc = -55c tO +125c tc = 25c
POWer DissiPatiOn shOrt circuit tc = 25c recOVery 1 50% - 100% - 50% transient recOVery 1, 3 16 - 40 -16 VDc transient 4 recOVery 3 Delay
steP lOaD resPOnse steP line resPOnse 1 start-uP 5 caPacitiVe lOaD 1, 6
OVershOOt 1 tc = 25c
Notes 1. Guaranteed by design, not tested. 2. Unit will shut down above approximately 45V but will be undamaged and will restart when voltage drops into normal range. 3. Recovery time is measured from application of the transient to the 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 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
Electrical Characteristics: -55C to +125 C TC, 28 VDC VIN, 100% load, free run, unless otherwise specified.
DUAL OUTPUT MODELS 2
Parameter OutPut VOltage OutPut current 3 OutPut POWer 3 OutPut riPPle line regulatiOn Vin = 16 tO 40 VDc nO lOaD tO Full crOss regulatiOn tc = 25c inPut VOltage lOaD regulatiOn Vin = 16 tO 40 VDc cOnDitiOns + VOut each OutPut - VOut MIN 4.85 4.82 0 0 0 -- -- -- -- -- -- -- 16 0 -- -- -- -- 77 75 -- -- -- -- -- -- -- -- --
MFL2805D
TYP 5.00 5.00 -- -- -- 50 0 25 0 25 5 3 28 -- 50 9 35 15 80 -- 12.5 1.5 250 1.5 250 200 3.5 0 -- MAX 5.15 5.18 7 10 50 100 50 100 50 100 8 7 40 50 120 14 70 50 -- -- 18 4 350 3.0 300 300 6 25 500 MIN 11.64 11.58 0 0 0 -- -- -- -- -- -- -- 16 0 - -- -- -- 83 81 -- -- -- -- -- -- -- -- --
MFL2812D
TYP 12.00 12.00 -- -- -- 50 0 25 10 25 2 2 28 -- 50 9 35 15 86 -- 10 1.5 450 1.5 250 200 3.5 0 -- MAX 12.36 12.42 3.5 5 60 120 50 100 50 120 4 4 40 50 100 14 70 50 -- -- 16 4 600 3.0 400 300 6 50 500 MIN 14.55 14.47 0 0 0 -- -- -- -- -- -- -- 16 0 -- -- -- -- 84 82 -- -- -- -- -- -- -- -- --
MFL2815D
TYP 15.00 15.00 -- -- -- 50 0 25 10 50 2 2 28 -- 50 9 35 15 87 -- 10 1.5 500 1.5 250 200 3.5 0 -- MAX 15.45 15.53 3.03 4.34 65 150 50 100 50 150 4 4 40 50 100 14 70 50 -- -- 16 4.0 600 3.0 500 300 6 50 500
units VDc a W mV p-p mV mV % VDc V mA
tOtal OutPut 10 khz - 2 mhz Vin = 16 tO 40 VDc VOut
- VOut + VOut see nOte 4 see nOte 5 TRANSIENT 120 msec.1, 6 nO lOaD inhibiteD-inh1 inhibiteD-inh2 cOntinuOus - VOut
+ VOut
nO lOaD tO Full inPut current
inPut riPPle current eFFiciency balanceD lOaD lOaD Fault
10 khz - 10 mhz tc = -55c tO +125c tc = 25c
mA p-p % W ms mV pk ms mV pk s ms mV pk F
POWer DissiPatiOn shOrt circuit recOVery 1 50% - 100% - 50% transient recOVery 1, 8 16 - 40 -16 VDc transient recOVery 8 Delay
steP lOaD resPOnse 7 VOut steP line resPOnse 1, 7 VOut start-uP 9 caPacitiVe lOaD 1, 10
OVershOOt 1 tc = 25c
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 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL 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
90 85
16V
90 85
16V
Efficiency (%)
75 40V 70 65 60 10 20 30 40 50
Efficiency (%)
28V
80 75 70 65 40V
Efficiency (%)
80
28V
80 75 70 65 40V
28V
MFL2805S & MFL2805D Efficiency
Output (Watts)
60 10
Figure 4
MFL2812S & MFL2812D Efficiency
Output Power (Watts)
20
30
40
50
60
60 10
Figure 5
MFL2815S & MFL2815D Efficiency
Output Power (Watts)
20
30
40
50
60 65
Figure 6
90 85 80 75 70 65 60 0 10
16 VIN
0. 20.
Attenuation (dB)
Efficiency (%)
28 VIN 40 VIN
100mV/div. 20V/div.
40. 60. 80.
Vout
Vin
20 30 40 50 60 70
100. 0.1
Output Power (Watts)
MFL2828S Efficiency
MFL Series Audio Rejection
Frequency (kHz)
1
10
100
Figure 7
Figure 8
MFL2805S Step Line Response
50 s/div 16 to 40 V
Figure 9
20V/div.
Vin
20V/div. 100mV/div.
1ms/div No Load
100% to 50%
Vin +Vout
100mV/div.
1V/div.
50% to 100%
Vout
-Vout
MFL2805S Step Load Response
1ms/div
MFL2805S Turn On Response
Figure 10
Figure 11
MFL2815D Step Line Response
50 s/div 16 to 40 V
Figure 12
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Page 9 of 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL 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 VIN +Vout
-Vout Voltage Change (%)
20V/div.
50% to 100%
-Pout = 32.5W
6 4 2 0 -2 -4 -6 -8 30 40
MFL2805D MFL2812D MFL2815D
200mV/div.
100% to 50%
5V/div.
-Vout
MFL2815D Step Load Response
1ms/div
MFL2815D Turn On Response
1ms/div No Load
Positive Output Load (% of Total Load) -VOUT with shift in load balance
50
60
70
Cross Regulation
Figure 13
Figure 14
Figure 15
16
Input Voltage (Volts)
15 14 13
MFL2815S & 15D
MFL2805S & 5D 12 11 10 MFL2812S & 12D 20 30 40 50 60 65
Output Power (Watts)
Low Line Dropout
Figure 16
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Page 10 of 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converter cases
28 VoLt input - 65 Watt
TOP VIEW CASE U Flanged case, short-leaded
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, 20100915
Figure 17: case u
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Page 11 of 13 MFL Rev E - 20101026
0.050 (1.27) 0.000
0.220 (5.59
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
STANDARD AND /ES (NON-QML) AND /883 (CLASS H, QML) PRODUCT ELEMENT EVALUATION
COmpOnent-level test perFOrmed
standard and /es nOn-Qml 1 M/S 2 P3
no no N/A no no no
/883 Class h Qml M/S 2
yes yes yes yes yes no
P3
yes yes N/A yes yes yes
Element Electrical (probe) Element Visual Internal Visual Final Electrical Wire Bond Evaluation 4 SLAMTM/C-SAM: Input capacitors only (Add'l test, not req. by H)
yes no no no no no
Notes: 1. Standard and /ES, 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 4. Not applicable to EMI filters that have no wire bonds. Definitions: Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534 SLAMTM: Scanning Laser Acoustic Microscopy C-SAM: C - Mode Scanning Acoustic Microscopy
screening table 1: element eValuatiOn screening table 4: element eValuatiOn - high reliability
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Page 12 of 13 MFL Rev E - 20101026
Crane Aerospace & Electronics Power Solutions
MFL single and dual dc/dc converters
28 VoLt input - 65 Watt
STANDARD AND /ES (NON-QML) AND /883 (CLASS H, QML) PRODUCT ENVIRONMENTAL SCREENING
test perFOrmed 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 Burn-in 2 Method 1015, 125C case, typical 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 Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C Gross Leak, Dip (1 x 10-3) Final visual inspection Method 2009
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes: 1. Standard and /ES, non-QML products, do not meet all of the requirements of MIL-PRF-38534. 2. Burn-in temperature designed to bring the case temperature to +125C
125C standard nOn-Qml1
yes no no no no
125C /es nOn-Qml1
yes no yes no yes
/883 Class h Qml
yes yes no yes no
no no no yes no no yes yes
yes no no yes yes yes no yes
no yes yes no yes yes no yes
screening table 5: enVirOnmental screening - high reliability screening table 2: enVirOnmental screening
MFL Single and Dual, MFL Rev E - 20101026. This revision supercedes 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. MFL Series is a trademark of Interpoint. Copyright (c) 1999 - 2010 Interpoint Corporation. All rights reserved. www.craneae.com/interpoint
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