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Product Series: 3656

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3656

32.5-80W DC-DC CONVERTER

Features

Proton Resistant: No optocouplers used
Completely self contained Thick Film Hybrid DC-DC Converter
Inhibit-not function
Power on soft start
200kHz operation for low ripple and fast response time
Short Circuit protection
Over voltage protection
BIT
For MIL-STD 704/1275 applications
Single Dual and Triple outputs
Fully hermetic package
Fully Isolated design with magnetically coupled feedback
Built in EMI input filter meets MIL-STD 461D/E/F requirements CE101,CE102, CS101, CS114, CS115 & CS116.

Specifications

Input: 28 VDC
Input Range (Continuous): 16 VDC to 50 VDC
Input Range (Full Power): 18 VDC to 50 VDC
Transient Survival Voltage: 100 VDC
Isolation Input to Case: 500 VDC
Isolation Input to Output: 500 VDC
Isolation Output to Case: 100 VDC
Storage Temp: -55 °C to +150 °C
Shock: 50 G's
Acceleration: 1000 G's
Vibration: 30 G's
Weight: 160 gms typical

Environment

Grade I:
Full Output Power at Tcase = 85°C
Minimum Output Power at Tcase = -55°C
Linearly derates to zero at Tcase = 115
TID up to kRad(Si)
No SEE up to 60MeV*cm2/mg
Grade E:
Full Output Power at Tcase = 125°C
Minimum Output Power at Tcase = -55°C
Linearly derates to zero at Tcase = 135
TID up to kRad(Si)
No SEE up to 60MeV*cm2/mg
Grade M:
Full Output Power at Tcase = 85°C
Minimum Output Power at Tcase = -55°C
Linearly derates to zero at Tcase = 115
TID up to kRad(Si)
No SEE up to 60MeV*cm2/mg

Single Output Devices

Toggle Columns: Parameter - Conditions
Parameters Conditions 3656-S05 (80W) 3656-D15 (80W)
3656-S05 (80W) MIN 3656-S05 (80W) TYP 3656-S05 (80W) MAX 3656-D15 (80W) MIN 3656-D15 (80W) TYP 3656-D15 (80W) MAX
Output Voltage (FLD) — +4.9 +5.0 +5.1 +14.9
-14.9		 +15.0
-15.0		 +15.1
-15.1
Output current Vin min — Vin max - - 15A ±127mA - ±2.5A
Efficiency Pout 20W - 100W 70% 73% - 78% 82% -
Line regulation Pout = max rated load
Vin min — Vin max		 - 10mV 50mV - ±25mV ±125mV
Load regulation Pout = 10% to F.L. - 10mV 50mV - ±25mV ±125mV
Output ripple F.L. BW 2 MHz
mVpp		 - 40 85 - 75 180

Triple Output Devices

Toggle Columns: Parameter - Conditions
Parameters Conditions 3656-T15 (80W)
3656-T15 (80W) MIN 3656-T15 (80W) TYP 3656-T15 (80W) MAX
Output Voltage (FLD) +lout = -lout+ +4.9
+14.9
-14.9		 +5.0
+15.0
-15.0		 +5.1
+15.1
-15.1
Output current Vin min — Vin max 90mA
±32mA		 -
-		 5A
±750mA
Efficiency Pout 20W - 100W 70% 73% -
Line regulation Pout = max rated load
Vin min — Vin max		 -
-		 10mV
25mV		 50mV
50mV
Load regulation Pout = 10% to F.L. -
-		 10mV
25mV		 50mV
50mV
Output ripple F.L. BW 2 MHz
mVpp		 -
-		 40
-		 85
50

Pinout Table

3656-SXX<24 3656-TXX 3656-DXX
Pin-1: bit Pin-1: bit Pin-1: bit
Pin-2: inhibit not Pin-2: inhibit not Pin-2: inhibit not
Pin-3: soft start Pin-3: soft start Pin-3: soft start
Pin-4: sync Pin-4: sync Pin-4: sync
Pin-5: + input Pin-5: + input Pin-5: + input
Pin-6: input ret Pin-6: input ret Pin-6: input ret
Pin-7: N/C Pin-7: N/C Pin-7: adjust
Pin-8: main output Pin-8: main output Pin-8: + remote sense
Pin-9: main output ret Pin-9: main output ret Pin-9: - remote sense
Pin-10: + remote sense Pin-10: + dual output Pin-10: + dual output
Pin-11: adjust Pin-11: dual output rtn Pin-11: dual output rtn
Pin-12: - remote sense Pin-12: - dual output Pin-12: - dual output

Case Styles

Part Number Designator Case Style Pin Count Mounting Step File
4 Case Style 4 12 Solder Sealed Flanged PCB Mount —
LF Case Style 7 12 Solder Sealed Flanged PCB Mount Download
ZF Case Style 9 12 Seam Weld Flanged Chassis Mount Download
PD Case Style 11 12 Solder Sealed PCB Stud Mount Download