Model: 3834-S15

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3834-S15

This DC-DC Converter is recommended for space applications requiring good efficiency at low power as well as a small package size.

Features

  • Efficiency optimized for lower power applications
  • GaN switching transistor at fixed 250 kHz for low ripple
  • No SEE: LET > 82meV*cm^2/mg
  • Magnetically coupled regulation
  • Inhibit-not function

Specifications

  • Input: 12 VDC to VDC
  • Input Range (Continuous): 9 VDC to 20 VDC (START)
  • Input Range (Full Power): 8 VDC to 20 VDC (RUN)
  • Isolation Input to Case: 500 VDC to VDC
  • Isolation Input to Output: 500 VDC to VDC
  • Isolation Output to Case: 500 VDC to VDC
  • Storage Temp: -65 °C to 150 °C
  • Shock: to MIL-STD-810 Method 516.5 Procedure III
  • Acceleration: to MIL-STD 883 Method 2001, test condition A1, Y1 direction, 500G's
  • Vibration: to MIL-STD-883 Method 2026, test condition 2H
  • Weight: 18 gms typical to 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 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

Additional Notes

To operate converter, open inhibit-not pin
To inhibit converter, connect inhibit-not pin to input return
If needed use EMI Filter MDI Model 3747 available separately

Single Output Devices

Toggle Columns: Parameter - Conditions
Parameters Conditions 3834-S15 (2W) MIN 3834-S15 (2W) TYP 3834-S15 (2W) MAX
Output set voltage +14.8 +15 +15.2
Output current Vin min — Vin max 0.013 0.133
Efficiency Pout = max rated load 75% 78%
Line regulation Pout = max rated load
Vin min — Vin max
200mV 400mV
Load regulation Pout = 10% to F.L. 200mV 400mV
Output ripple F.L. BW 2 MHz
mVpp
70 150mV

Pinout Table

3834-SXX
Pin-1: +12VDC Input
Pin-2: +12VDC Input Rtn
Pin-3: Output Pos
Pin-4: Output Rtn
Pin-5: Case
Pin-6: N/C
Pin-7: Inhibit-not

Case Styles

Part Number Designator Case Style Pin Count Mounting Step File
MN Case Style 16 7 Seam Weld Flangeless PCB Mount