Product Series: 3718

3718

6 Watt DC-DC Converter

Features

Completely self contained Thick Film Hybrid DC-DC Converter

No External Filter Caps required

Inhibit-not function

Power on soft start

Short Circuit protection

Fully Isolated design with magnetically coupled feedback

Specifications

Input: 28 VDC

Input Range (Continuous): 9 VDC to 50 VDC

Input Range (Full Power): 16 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: 500 VDC

Storage Temp: -55 °C to +150 °C

Shock: 50 G's

Acceleration: 500 G's

Vibration: 30 G's

Weight: 20 gms typical

Environment

Grade I:

Full Output Power at T_case = 85°C

Minimum Output Power at T_case = -55°C

Linearly derates to zero at T_case = 115

TID up to kRad(Si)
No SEE up to 60MeV*cm²/mg

Grade M:

Full Output Power at T_case = 85°C

Minimum Output Power at T_case = -55°C

Linearly derates to zero at T_case = 115

TID up to kRad(Si)
No SEE up to 60MeV*cm²/mg

Grade E:

Full Output Power at T_case = 125°C

Minimum Output Power at T_case = -55°C

Linearly derates to zero at T_case = 135

TID up to kRad(Si)
No SEE up to 60MeV*cm²/mg

Additional Notes

Power derates to 80% at 9 VDC, full power at 16VDC

Dual Output Devices

Parameters	Conditions	3718-D05 (6W)			3718-D12 (6W)			3718-D15 (6W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	+4.9V -4.9	+5.0V -5.0	+5.1V -5.1	+11.8V -11.8	+12.0V -12.0	+12.2V -12.2	+14.7V -14.7	+15.0V -15.0	+15.3V -15.3
Output current	V_{in min} — V_{in max}	—	—	±600mA	—	—	±250mA	—	—	±200mA
Efficiency	P_out = max rated load	70	77	—	78	81	—	78	83	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	±50mV	±100mV	—	±120mV	±240mV	—	±150mV	±300mV
Load regulation	P_out = 10% to F.L.	—	±60mV	±150mV	—	±240mV	±360mV	—	±180mV	±450mV
Output ripple	F.L. BW 2 MHz mV_pp	—	50	100	—	120	240	—	150	300

Single Output Devices

Parameters	Conditions	3718-S3.3 (6W)			3718-S05 (6W)			3718-S12 (6W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	3.2V	3.3V	3.4V	4.9V	5.0V	5.1V	11.8V	12.0V	12.2V
Output current	V_{in min} — V_{in max}	—	—	1.5A	—	—	1.2A	—	—	500mA
Efficiency	P_out = max rated load	68	74	—	70	77	—	78	81	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	33mV	66mV	—	50mV	100mV	—	120mV	240mV
Load regulation	P_out = 10% to F.L.	—	70mV	132mV	—	60mV	150mV	—	240mV	360mV
Output ripple	F.L. BW 2 MHz mV_pp	—	50	100	—	50	100	—	120	240

Parameters	Conditions	3718-S15 (6W)			3718-S28 (6W)			3718-S48 (6W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	14.7V	15.0V	15.3V	27.4V	28.0V	28.6V	47.0V	48.0V	49.0V
Output current	V_{in min} — V_{in max}	—	—	400mA	—	—	214mA	—	—	125mA
Efficiency	P_out = max rated load	78	83	—	78	83	—	77	81	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	150mV	300mV	—	280mV	580mV	—	150mV	300mV
Load regulation	P_out = 10% to F.L.	—	180mV	450mV	—	132mV	340mV	—	450mV	700mV
Output ripple	F.L. BW 2 MHz mV_pp	—	150	300	—	50	600	—	400	1000

Parameters	Conditions	3718-S100 (6W)			3718-S200 (6W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	98.0V	100.0V	102.0V	196.0V	200.0V	204.0V
Output current	V_{in min} — V_{in max}	—	—	60mA	—	—	30mA
Efficiency	P_out = max rated load	74	80	—	74	80	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	300mV	600mV	—	600mV	1.20V
Load regulation	P_out = 10% to F.L.	—	900mV	1.40V	—	1.80V	2.80V
Output ripple	F.L. BW 2 MHz mV_pp	—	800	2.0V	—	1.60V	4.0V

Pinout Table

3718-DXX	3718-SXX
Pin-1: +V Output	Pin-1: +V Out
Pin-2: Output Return	Pin-2: Output Return
Pin-3: -V Output	Pin-3: Output Return
Pin-4: N/C	Pin-4: N/C
Pin-5: Inhibit Not	Pin-5: Inhibit Not
Pin-6: +28VDC Input	Pin-6: +28VDC Input
Pin-7: Input Return	Pin-7: Input Return
Pin-8: Case Ground	Pin-8: Case Ground

Case Styles

Part Number Designator	Case Style	Pin Count	Mounting	Step File
FS	Case Style 17	8	Seam Weld Flangeless PCB Mount	—