+1.631.345.3100
Made in the USA

Product Series: 3813

Print Page

3813

18 Watt Proton Rad Hard 100K+® DC-DC Converter

Features

RadHard TID >100kRad(Si)
No SEE: LET > 82meV*cm^2/mg
Proton Resistant: No optocouplers used
Inhibit-not function
Power on soft start
200kHz operation for low ripple and fast response time
External Sync
Fully hermetic package
Fully Isolated design with magnetically coupled feedback

Specifications

Input: 28 VDC
Input Range (Continuous): 18 VDC to 50 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: G's
Acceleration: G's
Vibration: G's
Weight: 35 gms typical

Environment

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
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 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 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 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

Additional Notes

To operate converter, open Inhibit-not pin.

To inhibit converter, connect Inhibit-not pin to Input Return.

If not used, leave sync pin open

Suggested EMI Filter MDI Model 3723

Single Output Devices

Toggle Columns: Parameter - Conditions
Parameters Conditions 3813-S3.3 (18W) 3813-S05 (16.5W) 3813-S12 (18W) 3813-S15 (18W) 3813-S28 (18W)
3813-S3.3 (18W) MIN 3813-S3.3 (18W) TYP 3813-S3.3 (18W) MAX 3813-S05 (16.5W) MIN 3813-S05 (16.5W) TYP 3813-S05 (16.5W) MAX 3813-S12 (18W) MIN 3813-S12 (18W) TYP 3813-S12 (18W) MAX 3813-S15 (18W) MIN 3813-S15 (18W) TYP 3813-S15 (18W) MAX 3813-S28 (18W) MIN 3813-S28 (18W) TYP 3813-S28 (18W) MAX
Output set voltage +lout = -lout+ +3.1 +3.3 +3.4 +4.8 +5.0 +5.1 +11.8 +12.0 +12.1 +14.8 +15.0 +15.1 +27.7 +28.0 +28.1
Output current Vin min — Vin max 0.5A — 5.0A 0.36A — 3.6A 0.15A — 1.5A 0.12A — 1.2A 0.065A — 0.65A
Efficiency Pout = max rated load 67% 70% — 72% 75% — 80% 83% — 80% 84% — 80% 84% —
Line regulation Pout = max rated load
Vin min — Vin max		 — 100mV 200mV — 110mV 200mV — 20mV 100mV — 25mV 125mV — 50mV 250mV
Load regulation Pout = 10% to F.L. — 100mV 200mV — 100mV 200mV — 150mV 500mV — 200mV 600mV — 400mV 700mV
Output ripple F.L. BW 2 MHz
mVpp		 — 30 100 — 40 125 — 60 150 — 70 180 — 180 300

Dual Output Devices

Toggle Columns: Parameter - Conditions
Parameters Conditions 3813-D05 (18W) 3813-D12 (18W) 3813-D15 (18W)
3813-D05 (18W) MIN 3813-D05 (18W) TYP 3813-D05 (18W) MAX 3813-D12 (18W) MIN 3813-D12 (18W) TYP 3813-D12 (18W) MAX 3813-D15 (18W) MIN 3813-D15 (18W) TYP 3813-D15 (18W) MAX
Output set voltage +lout = -lout+ +4.8
-4.8		 +5.0
-5.0		 +5.1
-5.1		 +11.8
-11.8		 +12.0
-12.0		 +12.1
-12.1		 +14.8
-14.8		 +15.0
-15.0		 +15.1
-15.1
Output current Vin min — Vin max ± 0.18A — ± 1.8A ± 0.075A — ± 0.75A ± 0.06A — ± 0.6A
Efficiency Pout = max rated load 72% 75% — 80% 83% — 80% 84% —
Line regulation Pout = max rated load
Vin min — Vin max		 — ±110mV ±200mV — ± 200mV ± 300mV — ± 200mV ± 400mV
Load regulation Pout = 10% to F.L. — ±100mV ±200mV — ± 100mV ± 500mV — ±200mV ±600mV
Output ripple F.L. BW 2 MHz
mVpp		 — 40 125 — 60 150 — 70 180

Pinout Table

3813-Sxx <24VDC 3813-Sxx >24VDC 3813-Dxx
Pin-1: Inhibit Not Pin-1: Inhibit Not Pin-1: Inhibit Not
Pin-2: N/C Pin-2: Output + Pin-2: Output +
Pin-3: Output Return Pin-3: N/C Pin-3: Output Return
Pin-4: Output + Pin-4: Output Return Pin-4: Output -
Pin-5: Sync Pin-5: Sync Pin-5: Sync
Pin-6: Case Pin-6: Case Pin-6: Case
Pin-7: +28VDC Input Return Pin-7: +28VDC Input Return Pin-7: +28VDC Input Return
Pin-8: =28VDC Input Pin-8: =28VDC Input Pin-8: =28VDC Input

Case Styles

Part Number Designator Case Style Pin Count Mounting Step File
AA Case Style 18 8 Seam Weld Flangeless PCB Mount Download
AF Case Style 19 8 Seam Weld Flanged PCB Mount —