FEATURES
Built in MIL-STD-461 EMI filter
Output trim from 51% to 124% of nominal
DESCRIPTION
VDC Output
Crane Aerospace & Electronics Power Solutions
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
Crane Aerospace & Electronics
Power Solutions – Interpoint Products
10301 Willows Rd. NE, Redmond, WA 98052
+1 425.882.3100 • power@crane-eg.com
www.craneae.com/interpoint
unDerVOltage lOCkOut
InhIbIt FunCtIOn
SynChrOnIzatIOn
raDIatIOn tOleranCe
SCreenIng
eMI
eleCtrOStatIC DISCharge (eSD) SenSItIVIty
SenSe
Table 1: MaxiMuM VolTage Drop using reMoTe sense
single anD Dual MoDels only
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
Output VOltage trIM
— —
table 2: trIM anD SenSe VOltage aDjuSt
Output VOltage trIM DetaIlS
1
2
3
4
5
14
13
12
11
10
9
8
SMRT Single
Sense
Trim
1
2
3
4
5
14
13
12
11
10
9
8
SMRT Dual
Vout B
Trim B
1
2
3
4
5
14
13
12
11
10
9
8
SMRT Triple
Vout A
Trim A
Trim B
+Vout B
FIgure 1: trIM DOwn DIagraMS
1
2
3
4
5
14
13
12
11
10
9
8
SMRT Single
Sense Return
Trim
1
2
3
4
5
14
13
12
11
10
9
8
SMRT Dual
Vout B Return
Trim B
1
2
3
4
5
14
13
12
11
10
9
8
SMRT Triple
Vout A Return
Trim A
Trim B
Vout B Return
FIgure 2: trIM up DIagraMS
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
FOrMula 1: trIM DOwn uSIng trIM pIn
FOrMula 2: trIM up uSIng trIM pIn
FOrMula 3: trIM up uSIng SenSe a pIn
R = 240 (VOUTVNOM ) / (K + (VMAXVOUT))
Where:
Output VOltage trIM DetaIlS (COntInueD)
table 3: trIM DOwn COnStantS when uSIng trIM pIn
table 4: trIM up COnStantS when uSIng trIM pIn
table 5: trIM up COnStantS when uSIng SenSe pIn On
Output a OF Dual Output MODelS
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
FIgure 3: SMrt SIngle blOCk DIagraM
Bias 1
Error Amp / ref /
compensation
Bias 1
EMI Filter
Prim. Bias
PWM
Isolation
PWM
Isolation
28V
28V
Vout A Rtn.
Vout A Rtn.
OCP
OCP
Inhibit
Vin
Vin Rtn.
Trim
Sense
Sense Rtn.
Vout A
Vout A
Vout A Rtn.
Clock
Phase A
Phase B
Prim. Bias
Prim. Bias
Sync In
Prim. Bias
Bias 2
Oscillator
Oscillator
Bias 1
Bias 2
Feed forward
compensation
28V
Prim. Bias
Feedback
Feedback
5.1V Z
Prim. Bias
Primary
Secondary
Sync Rtn.
Vout A Rtn.
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
FIgure 4: SMrt Dual blOCk DIagraM
Bias 1
Error Amp / ref /
compensation
Bias 1
EMI Filter
Prim. Bias
PWM
Isolation
PWM
Isolation
28V
28V
Vout A Rtn.
Vout A Rtn
OCP
Inhibit
Vin
Vin Rtn.
Sense A
Sense A Rtn.
Vout A
Vout B
Vout B Rtn.
Vout B Rtn.
Clock
Phase A
Phase B
Prim. Bias
Prim. Bias
Sync In
Prim. Bias
Bias 2
Oscillator
Bias 1
Bias 2
Feed forward
compensation
28V
Prim. Bias
Feedback
Feedback
5.1V Z
Prim. Bias
Primary
Secondary
Sync Rtn.
Oscillator
OCP
Bias 2
Trim B
Error Amp / ref /
compensation
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
FIgure 5: SMrt trIple blOCk DIagraM
Vout B Neg.
Bias 1
Error Amp / ref /
compensation
Bias 1
EMI Filter
Prim. Bias
PWM
Isolation
PWM
Isolation
28V
28V
Vout A Rtn.
Vout A Rtn.
OCP
OCP
Inhibit
Vin
Vin Rtn.
Trim A
Vout A
Vout B Pos.
Vout B Rtn.
Vout B Rtn.
Clock
Phase A
Phase B
Prim. Bias
Prim. Bias
Sync In
Prim. Bias
Bias 2
Oscillator
Bias 1
Bias 2
Feed forward
compensation
28V
Prim. Bias
Feedback
Feedback
5.1V Z
Prim. Bias
Primary
Secondary
Sync Rtn.
Oscillator
Bias 2
Trim B
Error Amp / ref /
compensation
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
FIgure 6: pIn Out
1
2
3
4
5
14
13
12
11
10
9
8
TOP VIEW
PIN OUT
Pin Single Output Dual Output Triple Output
PINS NOT IN USE
table 6: pIn Out
table 7: pInS nOt In uSe
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
MODEL NUMBERING KEY
SMRT 28 515 T / K R
Base Model
Input Voltage
Output Voltage
Environmental Screening
Radiation Hardness
Assurance (RHA)
Number of Outputs
(S=single, D=dual, T=triple)
(single or dual Vout for single or dual models
main and aux. Vout for triple models)
SMD NUMBERS
Standard Microcircuit
drawing (SMd)
SMrt SiMilar Part
MODEL NUMBER OPTIONS
to deterMine the Model nuMber enter one oPtion froM
each category in the forM below.
CATEGORY Base Model and
Input Voltage
Output Voltage 1Number of
Outputs 2
Screening 3RHA 4
OPTIONS
O O
T
FILL IN FOR
MODEL #
__________ __________
table 8: SMD nuMber CrOSS reFerenCe
table 9: MODel nuMber OptIOnS
FIgure 7: MODel nuMberIng key
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
— —
—
—
—
— >
— —
—
—
— — %
— —
—
— %
— —
—
— —
— —
—
table 10: OperatIng COnDItIOnS - all MODelS, 25° CaSe, 28 VDC VIn, unleSS OtherwISe SpeCIFIeD.
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
table 11: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 28 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
>
— — —
— — —
T — — — — — —
TTO — — — — — —
— — —
— — —
— — — — — —
— — —
— — —
— — — — — —
— — — — — —
— — —
T — — —%
TTO — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
T
— — — — — —
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
table 12: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 28 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
— —
— —
T — — — —
TTO — — — —
— —
— —
— — — —
— —
— —
— — — —
— — — —
— —
T — —%
TTO — — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
T
— — — —
>
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
table 13: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 28 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
— — —
— — —
— — —
— — —
T — — — — — —
TTO — — — — — —
— — — —
— — —
— — — — — —
— — —
— — —
— — — — — —
— — — — — —
— — —
T — — —%
TTO — — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
T
— — — — — —
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
———
—
———— —
—
———— —
T — — — —
TTO — — — —
— — —
————
— —
— — — —
————
———— —
— —
T
———— — %
———
— ———
— — ———
— — ———
— ———
T — — — — %
TTO — — — — —
— — ———
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— —
T
— — — —
table 14: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 28 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
table 15: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 28 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
—
—————
—
—————
T — — — —
TTO — — — —
— — —
—
— —
— — — —
—————
—————
— —
T
————— %
———
— ———
— — ———
— — ———
— ———
T ———— %
TTO —————
— — ———
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— —
T
— — — —
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
—
—————
—
—————
T — — — —
TTO — — — —
— — — —
—————
— —
— — — —
—————
—————
— —
T
————— %
———
— ———
— — ———
— — ———
— ———
T ———— %
TTO —————
— — ———
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— —
T
— — — —
table 16: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 28 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
—
———— —
—
———— —
T — — — —
TTO — — — —
— — —
—
— —
— — — —
————
———— —
— —
T
———— — %
———
— ———
— — ———
— — ———
— ———
T — — — — %
TTO — — — — —
— — ———
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— —
T
— — — —
table 17: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 28 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
table 18: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 28 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
—
—————
—
—————
T — — — —
TTO — — — —
— — —
—
— —
— — — —
—————
—————
— —
T
————— %
— — —
— — — —
— — — — —
— — — — —
— — — —
T — — — — %
TTO ———— —
— — — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— —
T
— — — —
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
>
eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 28 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
table 19: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 50 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
>
— — —
— — —
T — — — — — —
TTO — — — — — —
— — — — — —
— — — — — —
— — — — — —
— — —
— — —
— — — — — —
— — — — — —
— — — — — —
T — — — — — — %
TTO — — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
T
— — — — — —
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
50 VOLT INPUT SPECIFICATIONS
table 20: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 50 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
— —
— —
T — — — —
TTO — — — —
— — — —
— — — —
— — — —
— —
— —
— — — —
— — — —
— — — —
T — — — — %
TTO — — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
T
— — — —
>
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
50 VOLT INPUT SPECIFICATIONS
table 21: eleCtrICal CharaCterIStICS: -55°C tO +125°C tC, 50 VDC VIn, 100% lOaD, unleSS OtherwISe SpeCIFIeD.
— — —
— — —
— — —
— — —
T — — — — — —
TTO — — — — — —
— — — — — —
— — — — — —
— — — — — —
— — —
— — —
— — — — — —
— — — — — —
— — — — — —
T — — — — — — %
TTO — — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
— — — — — —
T
— — — — — —
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
50 VOLT INPUT SPECIFICATIONS
———
—
—————
—
—————
T — — — —
TTO — — — —
— — — —
—————
— — — —
— — — —
—————
—————
— —
T
————— %
———
— ———
— — ———
— — ———
— — ———
T ————— %
TTO —————
— — ———
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
T
— — — —
table 22: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 50 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
50 VOLT INPUT SPECIFICATIONS
table 23: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 50 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
—
—————
—
—————
T — — — —
TTO — — — —
— — — —
—————
— — — —
— — — —
—————
—————
— —
T
————— %
———
— ———
— — ———
— — ———
— — ———
T ————— %
TTO —————
— — ———
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
T
— — — —
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
50 VOLT INPUT SPECIFICATIONS
—
—————
—
—————
T — — — —
TTO — — — —
— — — —
—————
— — — —
— — — —
—————
—————
— —
T
————— %
———
— ———
— — ———
— — ———
— — ———
T ————— %
TTO —————
— — ———
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
T
— — — —
table 24: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 50 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
50 VOLT INPUT SPECIFICATIONS
—
—————
—
—————
T — — — —
TTO — — — —
— — — —
—————
— — — —
— — — —
—————
—————
— —
T
————— %
———
— ———
— — ———
— — ———
— — ———
T ————— %
TTO —————
— — ———
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
T
— — — —
table 25: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 50 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
50 VOLT INPUT SPECIFICATIONS
table 26: eleCtrICal CharaCterIStICS: -55°C tO +125°C CaSe, 50 VDC VIn, 100% lOaD, Free run, unleSS OtherwISe SpeCIFIeD.
—
—————
—
—————
T — — — —
TTO — — — —
— — — —
—————
— — — —
— — — —
—————
—————
— —
T
————— %
— — —
— — — —
— — — — —
— — — — —
— — — — —
T ———— — %
TTO ———— —
— — — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
T
— — — —
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
50 VOLT INPUT SPECIFICATIONS
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
50 VOLT INPUT SPECIFICATIONS
0.0
-100.0
-20.0
-40.0
-60.0
-80.0
100 1 k 10 k 100 k
-34.3 dB
CE03 LIMIT
NARROWBAND
90
70
50
30
10
.015 0.1 110 50
FIgure 8
0.1 1 10.01
100
80
60
40
20
CE102 AC and DC Limits
FIgure 9
FIgure 10
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
SINGLE OUTPUT REPRESENTATIVE PLOTS
FIgure 11
FIgure 13
FIgure 15
FIgure 12
FIgure 14
FIgure 16
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
SINGLE OUTPUT REPRESENTATIVE PLOTS
50
52
54
56
58
60
62
64
66
510 15 20 25
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
50
55
60
65
70
75
510 15 20 25 30
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
50
55
60
65
70
75
80
510 15 20 25 30 35
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
FIgure 17
FIgure 19
FIgure 21
FIgure 18
FIgure 20
FIgure 22
GAIN (dB)
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
PHASE (deg)
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
3.0 kHz
0.1 dB
72.7 deg
90.0
45.0
M2
19.5 kHz
-13.4 dB
0.1 deg
GAIN
PHASE
GAIN (dB)
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
PHASE (deg)
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
4.9 kHz
-0.1 dB
72.4 deg
90.0
45.0
M2
18.9 kHz
-14.1 dB
0.2 deg
GAIN
PHASE
GAIN (dB)
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
PHASE (deg)
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
1.7 kHz
0.1 dB
76.2 deg
90.0
45.0
M2
13.5 kHz
-17.3 dB
0.0 deg
GAIN
PHASE
Crane Aerospace & Electronics Power Solutions
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SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
SINGLE OUTPUT EFFICIENCY AND GAIN PHASE, ALL MODELS
50
55
60
65
70
75
80
510 15 20 25 30 35
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
50
55
60
65
70
75
80
85
510 15 20 25 30 35
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
FIgure 23 FIgure 24
FIgure 25 FIgure 26
GAIN (dB)
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
PHASE (deg)
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
1.7 kHz
-0.0 dB
74.6 deg
90.0
45.0
M2
9.6 kHz
-16.2 dB
0.1 deg
GAIN
PHASE
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
821.1 Hz
0.0 dB
66.7 deg
90.0
45.0
M2
14.4 kHz
27.2 dB
0.1 deg
GAIN
PHASE
Crane Aerospace & Electronics Power Solutions
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SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
SINGLE OUTPUT EFFICIENCY AND GAIN PHASE, ALL MODELS
0.0
-100
.0
-
20.0
-
40.0
-
60.0
-
80.0
100 1 k 10 k 100 k
-20.0 dB
0.0
-100
.0
-
20.0
-
40.0
-
60.0
-
80.0
100 1 k 10 k 100 k
-21.6 dB
FIgure 27
FIgure 30
CE03 LIMIT
NARROWBAND
90
70
50
30
10
.015 0.1 110 50
FIgure 28
0.1 1 10.01
100
80
60
40
20
CE102 AC and DC Limits
FIgure 29
Crane Aerospace & Electronics Power Solutions
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SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
DUAL OUTPUT REPRESENTATIVE PLOTS
FIgure 31
FIgure 32
FIgure 33
FIgure 34
FIgure 35
FIgure 36
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
DUAL OUTPUT REPRESENTATIVE PLOTS
50
55
60
65
70
75
510 15 20 25 30
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
50
55
60
65
70
75
80
510 15 20 25 30 35
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
50
55
60
65
70
75
80
85
510 15 20 25 30 35
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
FIgure 37 FIgure 38
FIgure 41 FIgure 42
FIgure 39 FIgure 40
GAIN (dB)
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
PHASE (deg)
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
5.0 kHz
0.1 dB
78.9 deg
90.0
45.0
M2
20.8 kHz
-11.8 dB
-0.0 deg
GAIN
PHASE
GAIN (dB)
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
PHASE (deg)
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
6.7 kHz
-0.3 dB
49.4 deg
90.0
45.0
M2
13.5 kHz
-8.6 dB
-0.1 deg
GAIN
PHASE
GAIN (dB)
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
PHASE (deg)
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
4.7 kHz
-0.1 dB
60.2 deg
90.0
45.0
M2
15.4 kHz
-13.8 dB
0.2 deg
GAIN
PHASE
Crane Aerospace & Electronics Power Solutions
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SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
DUAL OUTPUT EFFICIENCY AND GAIN PHASE, ALL MODELS
0.0
-100
.0
-
20.0
-
40.0
-
60.0
-
80.0
100 1 k 10 k 100 k
-42.5 dB
0.0
-100
.0
-
20.0
-
40.0
-
60.0
-
80.0
100 1 k 10 k 100 k
-34.9 dB
CE03 LIMIT
NARROWBAND
90
70
50
30
10
.015 0.1 110 50
FIgure 43
FIgure 44
FIgure 45 FIgure 46
0.1 1 10.01
100
80
60
40
20
CE102 AC and DC Limits
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
TRIPLE OUTPUT REPRESENTATIVE PLOTS
-4.0%
-3.0%
-2.0%
-1.0%
0.0%
1.0%
2.0%
3.0%
20% 30% 40% 50% 60% 70% 80%
-Aux Voltage Change (%)
Aux Load (%)
Cross Regulation
(Vin = 28 Volts)
-55 C 25 C 125 C -55 C 25 C 125 C
-8.0%
-6.0%
-4.0%
-2.0%
0.0%
2.0%
4.0%
6.0%
8.0%
10.0%
20% 30% 40% 50% 60% 70% 80%
-Aux Voltage Change (%)
Aux Load (%)
Cross Regulation
(Vin = 28 Volts)
-55 C 25 C 125 C -55 C 25 C 125 C
-5.0%
-4.0%
-3.0%
-2.0%
-1.0%
0.0%
1.0%
2.0%
3.0%
4.0%
20% 30% 40% 50% 60% 70% 80%
-Aux Voltage Change (%)
Aux Load (%)
Cross Regulation
!"#$%&%'(%")*+,-%
-55 C 25 C 125 C -55 C 25 C 125 C
FIgure 47 FIgure 48 FIgure 49
FIgure 50 FIgure 51 FIgure 52
FIgure 53 FIgure 54 FIgure 55
Crane Aerospace & Electronics Power Solutions
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SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
TRIPLE OUTPUT REPRESENTATIVE PLOTS
50
55
60
65
70
75
510 15 20 25 30
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
50
.0
-50
.0
40
.0
30
.0
20
.0
10
.0
0
.0
-10
.0
-20
.0
-30
.0
-40
.0
225.0
-225.
0
180.0
135.0
-45.0
-90.0
-135.
0
-180.
0
100 1 k 10 k
M1
M2
90.0
45.0
0.0
M1
3.1 kHz
-0.0 dB
74.9 deg
M2
22.7 kHz
-13.7 dB
0.1 deg
GAIN
PHASE
Gain (dB)
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
Phase (deg)
225.0
-225.0
180.0
135.0
90.0
45.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
1.0 kHz
0.0 dB
69.5 deg
M2
19.2 kHz
-29.5 dB
0.1 deg
GAIN
PHASE
FIgure 56
FIgure 57 FIgure 58
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
TRIPLE OUTPUT REPRESENTATIVE PLOTS
50
55
60
65
70
75
80
5 10 15 20 25 30
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
50
55
60
65
70
75
510 15 20 25 30
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
2.1 kHz
-0.0 dB
76.9 deg
90.0
45.0
M2
19.3 kHz
-19.1 dB
0.0 deg
GAIN
PHASE
50
55
60
65
70
75
510 15 20 25 30
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
FIgure 59
FIgure 60 FIgure 61
FIgure 62
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
TRIPLE OUTPUT REPRESENTATIVE PLOTS
50
55
60
65
70
75
80
510 15 20 25 30
Efficiency (%)
Output Power (Watts)
Efficiency
Vin=19 Vin=28 Vin=50 Vin=56
FIgure 63
FIgure 64
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
6.0 kHz
-0.0 dB
67.6 deg
90.0
45.0
M2
20.1 kHz
-10.7 dB
-0.1 deg
GAIN
PHASE
FIgure 65
50.0
-50.0
40.0
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
-40.0
225.0
-225.0
180.0
135.0
0.0
-45.0
-90.0
-135.0
-180.0
100 1 k 10 k
M1 M2
M1
750.7 Hz
0.0 dB
65.8 deg
90.0
45.0
M2
18.3 kHz
-31.9 dB
-0.2 deg
GAIN
PHASE
Crane Aerospace & Electronics Power Solutions
www.craneae.com/interpoint
SMRT Single, Dual and Triple Space DC-DC Converters
Typical performance ploTs: Vin as specified, 25°c case, 100% load, free run, unless oTherwise specified.
These are examples for reference only and are noT guaranTeed specificaTions.
TRIPLE OUTPUT REPRESENTATIVE PLOTS
BOTTOM VIEW CASE S
Seal hole: 0.135 ±0.005 (3.43 ±0.13)
Angled corner
indicates pin 1
6 x 0.135 (3.43) dia.
12 x 0.040 ± 0.002 dia.
(1.02 ± 0.05)
1
2
3
4
5
14
13
12
11
10
9
8
1.700 (43.18)
1.500 (38.10)
1.300 (33.02)
1.100 (27.94)
0.900 (22.86)
0.700 (17.78)
0.500 (12.70)
3x 2.075 (52.68)
3x 0.125 (3.15)
2x 0.150 (3.81)
0.00
0.00
2x 2.550 (64.77)
12 x 0.270 max (6.86)
2x 1.550 (39.37)
0.00
Materials
Header Cold Rolled Steel/Nickel
Cover Kovar/Nickel
Pins #52 alloy/gold, ceramic seal
Gold plating of 50 - 150 microinches included in pin diameter
Seal hole 0.123 ±0.002 (3.12 ±0.051)
Case S, Rev E, 2013.05.15
Please refer to the numerical dimensions for accuracy.
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device.
Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin
Weight: 100 gms maximum
2.705 max (68.71)
0.262 (6.65) 1.675 (42.5)
2.205 max (56.01)
0.220 (5.59)
0.050 (1.27)
0.400 max (10.16)
FIgure 66: CaSe S
Crane Aerospace & Electronics Power Solutions
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
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table 27: eleMent eValuatIOn
table 1: eleMent eValuatIOn–DC-DC COnVerterS prOtOtype, ClaSS h anD ClaSS k
dc-dc converterS PrototyPe, claSS h and claSS K,
Mil-Prf-38534 eleMent evaluation
non-QMl
1QMl
PrototyPe claSS h claSS K
coMPonent-level teSt PerforMed
/o /h /K
M/S 2 M/S 2 P 3 M/S 2 P 3
n nnnn
nnnn
n n
n n
n n
n
n
n
n
n
n
nnnn
nnnn
n
Crane Aerospace & Electronics Power Solutions
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SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
dc-dc converterS PrototyPe, claSS h and claSS K
Mil-Prf-38534 environMental Screening and rha1 P or r
non-QMl 2QMl 3
PrototyPe claSS h claSS K
teSt PerforMed /oo /hP /hr /KP /Kr
Non-destruct wire bond pull, Method 2023 n n n n
Pre-cap Inspection, Method 2017, 2032 n nnnn
Temperature Cycle (10 times)
n nnnn
Constant Acceleration
n nnnn
PIND, Test Method 2020, Cond. A n n n n
Pre burn-in test, Group A, Subgroups 1 and 4 n n n n n
Burn-in Method 1015, +125°C case, typical 5
n
n n
n n
Final Electrical Test, MIL-PRF-38534, Group A
n
nnnn
Hermeticity Test
n nnnn
n nnnn
Radiography, Method 2012 n n
Post Radiography Electrical Test, +25°C case n n
Final visual inspection, Method 2009 n nnnn
RHA P: 30 krad(Si) total dose 6, 7 n n
RHA R: 100 krad(Si) total dose 6, 7 n n
SEE LET 8 78.2 MeV-cm2/mg nnnn
table 28: enVIrOnMental SCreenIng anD rha leVelS
Crane Aerospace & Electronics Power Solutions
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SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
Acronym Definition
HDR high dose rate
LDR low dose rate
LET linear energy transfer
MeV million electron volts
RHA radiation hardness assurance
SEE single event effect
SEGR single event gate rupture
SEL single event latch-up
SET single event transient
SEU single event upset
TID total ionizing dose
table 29: rha aCrOnyMS
Crane Aerospace & Electronics Power Solutions
SMRT Single, Dual and Triple Space DC-DC Converters
19-56 VOLT INPUT – 35 WATT – SPACE QUALIFIED
