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MIC4103
  • MIC4103

MIC4103

In Production

The MIC4103 and MIC4104 are high frequency, 100V Half Bridge MOSFET gate drivers with faster turn-off characteristics than the MIC4100 and MIC4101 MOSFET gate drivers. They feature fast 24ns propagation delay times and 6ns driver fall times. The low-side and high-side gate drivers are independently controlled and matched to within 3ns 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 helps ensure the outputs are not affected by supply glitches, HS ringing below ground, or HS slewing with high speed ...

Microchip Technology MIC4103 Product Info

16 April 2026 0

Parameters

Capacitive Load Drive

1,000 pF in 27 ns

MOSFET Driver Type

Synchronous

Supply Voltage Max V (volt)

16

Peak Sink Current A (ampere)

2

Peak Source Current A (ampere)

3

Propagation Delay tD1 ns (nanosecond)

24

Propagation Delay tD2 ns (nanosecond)

24

Sink Resistance Ω (ohm)

2

Source Resistance Ω (ohm)

1.5

Fall Time tF ns (nanosecond)

6

Rise Time tR ns (nanosecond)

10

# of Outputs

2

Integrated MOSFETs

External

Peak High-Side Source Current (Ampere)

2

Peak Low-Side Source Current (Ampere)

2

Peak High-Side Sink Current (Ampere)

3

Supply Voltage Min V (volt)

9

Bootstrap Supply Voltage Max V (volt)

116

High-Side Source Resistance Typ (Ohms)

2.5

Low-Side Source Resistance Typ (Ohms) Ω (ohm)

2.5

High-Side Sink Resistance Typ (Ohms)

1.375

Low-Side Sink Resistance Typ (Ohms) Ω (ohm)

1.125

High-Side Rise Time (ns)

10

Low-Side Rise Time (ns)

10

High-Side Fall Time (ns)

6

Low-Side Fall Time (ns)

6

High-Side Turn-On Prop Delay (ns)

24

Low-Side Turn-On Prop Delay (ns)

24

High-Side Turn-Off Propagation Delay (ns)

24

Low Side Turn-off Propagation delay (ns)

24

Temp Range (T-Junction) Min °C (degrees Celsius)

-40

Temp Range (T-Junction) Max °C (degrees Celsius)

125

Output Configuration

Half-Bridge

Features

  • Asymmetrical, low impedance outputs drive 1,000 pF load with 10ns rise times and 6ns 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)
  • On-chip bootstrap diode
  • Fast 24 ns propagation times
  • Low power consumption
  • Supply under-voltage protection
  • Typical 2.5 Ω pull up and 1.25 Ω pull down output driver resistance
  • -40°C to +125°C junction temperature range
  • Description

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

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