+1.631.345.3100
Made in the USA

Product Series: 6681

6681

12 – 30 Watt Hybrid DC-DC Converter

Features

Built in EMI input filter meets MIL-STD 461D/E/F requirements CE101,CE102, CS101, CS114, CS115 & CS116.
Meets DO160C/D/E/F/G CE Section 21 & CS Sections 20 & 22.
For MIL-STD 704/1275 applications
Completely self contained Thick Film Hybrid DC-DC Converter
No External Filter Caps required
Inhibit-not function
Short Circuit protection
Fully isolated, input to output
250kHz operation for low ripple and fast response time
Fully hermetic package
BIT
External Sync

Specifications

Input: 28 VDC
Input Range (Continuous): 16 VDC to 50 VDC
Input Range (Full Power): 18 VDC to 50 VDC
Transient Survival Voltage: 80 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: 500 G's
Vibration: 30 G's
Weight: 75 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 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
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

Single Output Devices

Parameters Conditions 6681-S02 (30W) 6681-S02.5 (30W) 6681-S03.3 (30W)
MIN TYP MAX MIN TYP MAX MIN TYP MAX
Output Voltage (FLD) — +1.9 +2.0 +2.1 +2.4 +2.5 +2.6 +3.2 +3.3 +3.04
Output current Vin min — Vin max - - 6.06A - - 6.06A - - 6.06A
Efficiency Pout = max rated load 56% 59% - 61% 64% - 66% 69% -
Line regulation Pout = max rated load
Vin min — Vin max		 - 10mV 30mV - 10mV 30mV - 10mV 30mV
Load regulation Pout = 10% to F.L. - 10mV 30mV - 10mV 30mV - 10mV 30mV
Output ripple F.L. BW 2 MHz
mVpp		 - 25 50 - 30 60 - 30 65
Parameters Conditions 6681-S05 (30W) 6681-S05.2 (30W) 6681-S12 (30W)
MIN TYP MAX MIN TYP MAX MIN TYP MAX
Output Voltage (FLD) — +4.9 +5.0 +5.1 +5.1 +5.2 +5.3 +11.9 +12.0 +12.1
Output current Vin min — Vin max - - 6A - - 5.76A - - 2.5A
Efficiency Pout = max rated load 71% 74% - 71% 74% - 78% 82% -
Line regulation Pout = max rated load
Vin min — Vin max		 - 10mV 50mV - 10mV 50mV - 20mV 100mV
Load regulation Pout = 10% to F.L. - 10mV 50mV - 10mV 50mV - 20mV 100mV
Output ripple F.L. BW 2 MHz
mVpp		 - 40 85 - 40 85 - 60 150
Parameters Conditions 6681-S15 (30W) 6681-S28 (30W)
MIN TYP MAX MIN TYP MAX
Output Voltage (FLD) — +14.9 +15.0 +15.1 +27.8 +28.0 +28.2
Output current Vin min — Vin max - - 2A - - 1.07A
Efficiency Pout = max rated load 79% 83% - 78% 82% -
Line regulation Pout = max rated load
Vin min — Vin max		 - 25mV 125mV - 50mV 250mV
Load regulation Pout = 10% to F.L. - 25mV 125mV - 50mV 250mV
Output ripple F.L. BW 2 MHz
mVpp		 - 75 180 - 150 350

Dual Output Devices

Parameters Conditions 6681-D3.3/5 (30W) 6681-D12 (30W) 6681-D05 (30W)
MIN TYP MAX MIN TYP MAX MIN TYP MAX
Output Voltage (FLD) +lout = -lout+ +3.2
-4.9		 +3.3
-5.0		 +3.4
-5.1		 +11.9
-11.9		 +12.0
-12.0		 +12.1
-12.1		 +4.9
-4.9		 +5.0
-5.0		 +5.1
-5.1
Output current Vin min — Vin max 300mA
100mA		 - 3A
1A		 ±95mA - ±1.25A ±150mA
 - ±3A
Efficiency Pout = max rated load 63% 66% - 78% 82% - 72% 76% -
Line regulation Pout = max rated load
Vin min — Vin max		 - ±10mV
±10mV		 ±50mV
±50mV		 - ±20mV
 ±100mV
 - ±10mV
 ±50mV
Load regulation Pout = 10% to F.L. - ±10mV
±10mV		 ±50mV
±50mV		 - ±20mV
 ±100mV - ±10mV
 ±50mV
Output ripple F.L. BW 2 MHz
mVpp		 - 30
25		 65
60		 - 60 150 - 40 85
Parameters Conditions 6681-D15 (30W)
MIN TYP MAX
Output Voltage (FLD) +lout = -lout+ +14.9
-14.9		 +15.0
-15.0		 +15.1
-15.1
Output current Vin min — Vin max ±76mA - ±1A
Efficiency Pout = max rated load 79% 83% -
Line regulation Pout = max rated load
Vin min — Vin max		 - ±25mV
 ±125mV
Load regulation Pout = 10% to F.L. - ±25mV
 ±125mV
Output ripple F.L. BW 2 MHz
mVpp		 - 75 180

Pinout Table

6681-SXX<24 6681-SXX≥24 6681-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: N/C Pin-5: N/C Pin-5: N/C
Pin-6: input ret Pin-6: input ret Pin-6: input ret
Pin-7: + input Pin-7: + input Pin-7: + input
Pin-8: main output Pin-8: N/C Pin-8: N/C
Pin-9: main output ret Pin-9: N/C Pin-9: N/C
Pin-10: + remote sense Pin-10: main output Pin-10: + dual output
Pin-11: adjust Pin-11: N/C Pin-11: dual output rtn
Pin-12: - remote sense Pin-12: main output ret Pin-12: - dual output

Case Styles

Part Number Designator Case Style Pin Count Mounting Step File
2 Case Style 2 12 Solder Sealed Flangelss PCB Mount View PDF
F – 10 Pin Case Style 3 10 Solder Sealed Flanged PCB Mount View PDF
I Case Style 5 12 Seam Weld Flangeless PCB Mount View PDF
IF Case Style 6 12 Seam Weld Flanged PCB Mount View PDF
WF Case Style 8 12 Seam Weld Flanged Chassis Mount View PDF
PB Case Style 10 12 Solder Sealed PCB Stud Mount View PDF
PE Case Style 12 12 Seam Weld Stud PCM Mount View PDF