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Made in the USA

Model: 3699-S28

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3699-S28

7.5-20 Watt Proton Rad Hard 100K+ DC-DC Converters

Features

RadHard TID >100kRad(Si)
2:1 Margin: Operates beyond 200kRad TID
No SEE: LET > 82meV*cm^2/mg
Power on soft start
Fully hermetic package
Fully Isolated design with magnetically coupled feedback
Proton Resistant: No optocouplers used
Completely self contained Thick Film Hybrid DC-DC Converter
No External Filter Caps required
Fully Isolated design
Inhibit-not function
200kHz operation for low ripple and fast response time
Short Circuit protection
Over voltage protection

Specifications

Input: 12 VDC
Input Range (Continuous): 6 VDC to 17 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: 60 gms typical

Environment

Grade L:
Full Output Power at Tcase = 85°C
Minimum Output Power at Tcase = -55°C
Linearly derates to zero at Tcase = 115
TID up to 45kRad(Si)
No SEE up to 60MeV*cm2/mg
Grade S:
Full Output Power at Tcase = 85°C
Minimum Output Power at Tcase = -55°C
Linearly derates to zero at Tcase = 115
TID up to 100kRad(Si)
No SEE up to 60MeV*cm2/mg
Grade LE:
Full Output Power at Tcase = 125°C
Minimum Output Power at Tcase = -55°C
Linearly derates to zero at Tcase = 135
TID up to 45kRad(Si)
No SEE up to 60MeV*cm2/mg
Grade SE:
Full Output Power at Tcase = 125°C
Minimum Output Power at Tcase = -55°C
Linearly derates to zero at Tcase = 135
TID up to 100kRad(Si)
No SEE up to 60MeV*cm2/mg
Grade EU:
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 3699-S28 (20W) MIN 3699-S28 (20W) TYP 3699-S28 (20W) MAX
Output set voltage — +27.8 +28.0 +28.2
Rated Current (Amps) Vin min — Vin max — — 0.714A
Efficiency Pout = max rated load 76 80 —
Line regulation Pout = max rated load
Vin min — Vin max		 — 50mV 250mV
Load regulation Pout = 10% to F.L. — 50mV 250mV
Output ripple F.L. BW 2 MHz
mVpp		 — 150 350

Pinout Table

3699-Sxx >24V
Pin-1: Case
Pin-2: Inhibit Not
Pin-3: Soft Start
Pin-4: Sync
Pin-5: N/C
Pin-6: +V Input Return
Pin-7: +V Input
Pin-8: N/C
Pin-9: N/C
Pin-10: Main Output
Pin-11: N/C
Pin-12: Main Output Return

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
I Case Style 5 12 Seam Weld Flangeless PCB Mount Download
WF Case Style 8 12 Seam Weld Flanged Chassis Mount Download
PB Case Style 10 12 Solder Sealed PCB Stud Mount Download
PE Case Style 12 12 Seam Weld Stud PCM Mount Download
IF Case Style 6 12 Seam Weld Flanged PCB Mount Download