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Manufacturer Part #


MIC4104 Series 2.5 Ohm 100 V SMT Half Bridge MOSFET Driver - SOIC-8

Mfr. Name: Microchip
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Product Specification Section
Technical Attributes
Attributes Table
Configuration: Half Bridge
No of Outputs: Dual
Output Impedance: 2.5Ω
Peak Output Current: 3A
Supply Voltage-Max: 16V
Package Style:  SOIC-8
Mounting Method: Surface Mount
Features & Applications

The MIC4103 and MIC4104 are high frequency, 100 V Half Bridge MOSFET drivers with faster turn-off characteristics than the MIC4100 and MIC4101 drivers. They feature fast 24 ns propagation delay times and 6 ns driver fall times. The low-side and high-side gate drivers are independently controlled and matched to within 3 ns typical.

The MIC4103 has CMOS input thresholds and the MIC4104 has TTL input thresholds. The MIC4103/4 include a high voltage internal diode that charges the high-side gate drive bootstrap capacitor. A robust, high-speed, and low power level shifter provides clean level transitions to the high side output. The robust operation of the MIC4103/4 ensures the outputs are not affected by supply glitches, HS ringing below ground, or HS slewing with high speed voltage transitions. Under-voltage protection is provided on both the low-side and high-side drivers.  The MIC4103 and MIC4104 are available in an 8-lead SOIC package with a operating junction temperature range of –40 °C to +125 °C.

Key Features:

  • Asymmetrical, low impedance outputs drive 1000 pF load with 10 ns rise times and 6 ns fall times.
  • Bootstrap supply max voltage to 118 V DC.
  • Supply voltage up to 16 V.
  • Drives high- and low-side N-Channel MOSFETs with independent inputs.
  • CMOS input thresholds (MIC4103).
  • TTL input thresholds (MIC4104).
  • n-chip bootstrap diode.
  • Fast 24 ns propagation times.
  • Low power consumption. Supply under-voltage protection.
  • Typical 2.5 W pull up and 1.25 W pull down output driver resistance.
  • –40 °C to +125 °C junction temperature range.  


  • High voltage buck converters.
  • Full- and half-bridge power topologies.
  • Active clamp forward converter.
  • Two switch forward topologies.
  • Interface to digital controllers.

To learn more about the  product family, Click Here.

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Factory Lead Time:
12 Weeks
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