Model: 3193-S28

3193-S28

19.5 – 40 Watt Hybrid DC-DC Converter

Features

Completely self contained Thick Film Hybrid DC-DC Converter

No External Filter Caps required

Fully Isolated design

Inhibit function

Power on soft start

200kHz operation for low ripple and fast response time

Built in EMI input filter meets MIL-STD 461C requirements CE01,CE03, CS01, CS02 & CS06

Short Circuit protection

Over voltage protection

BIT

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: 90 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

Single Output Devices

Toggle Columns: Parameter - Conditions

Parameters	Conditions	3193-S28 (40W) MIN	3193-S28 (40W) TYP	3193-S28 (40W) MAX
Output Voltage (FLD)	—	+27.8	+28.0	+28.2
Output current	V_{in min} — V_{in max}	-	-	1.43A
Efficiency	P_out = max rated load	79%	83%	-
Line regulation	P_out = max rated load V_{in min} — V_{in max}	-	50mV	250mV
Load regulation	P_out = 10% to F.L.	-	50mV	250mV
Output ripple	F.L. BW 2 MHz mV_pp	-	150	350

Pinout Table

3193-SXX≥24
Pin-1: bit
Pin-2: inhibit
Pin-3: soft start
Pin-4: sync
Pin-5: N/C
Pin-6: input ret
Pin-7: + input
Pin-8: N/C
Pin-9: N/C
Pin-10: main output
Pin-11: N/C
Pin-12: main output ret

Case Styles

Part Number Designator	Case Style	Pin Count	Mounting	Step File
2	Case Style 2	12	Solder Sealed Flangelss PCB Mount	Download
F – 10 Pin	Case Style 3	10	Solder Sealed Flanged PCB Mount	Download
J	Case Style 5	12	Seam Weld Flangeless PCB Mount	Download
JF	Case Style 6	12	Seam Weld Flanged PCB Mount	Download
XF	Case Style 8	12	Seam Weld Flanged Chassis Mount	Download
PC	Case Style 10	12	Solder Sealed PCB Stud Mount	Download