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MIC4422
  • MIC4422
  • MIC4422
  • MIC4422

MIC4422

In Production

MIC4421 and MIC4422 MOSFET gate drivers are rugged, efficient, and easy to use. The MIC4421 is an inverting driver, while the MIC4422 is a non-inverting driver.Both versions are capable of 9 A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4421/4422 accepts any logic input from 2.4 V toVS without external speed-up capacitors or resistor networks. Proprietary circuits allow the input to swing negative by as much as 5 V without damaging the part. Additional circuits protect against damage from electrostatic discharge.MIC4421/4422 gate drivers can replace three or more discrete components, reducing PCB area requirements, simplifying product design, and reducing assembly cost.Modern Bipolar/CMOS/DMOS construction guarantees freedom from latch-up....

Microchip Technology MIC4422 Product Info

16 April 2026 0

Parameters

Capacitive Load Drive

10,000 pF in 24 ns

MOSFET Driver Type

Low Side

Supply Voltage Max V (volt)

18

Peak Sink Current A (ampere)

9

Peak Source Current A (ampere)

9

Propagation Delay tD1 ns (nanosecond)

15

Propagation Delay tD2 ns (nanosecond)

35

Sink Resistance Ω (ohm)

0.6

Source Resistance Ω (ohm)

0.8

Fall Time tF ns (nanosecond)

24

Rise Time tR ns (nanosecond)

20

# of Outputs

1

Output Type

Non-inverting

Integrated MOSFETs

External

Peak Low-Side Source Current (Ampere)

9

Supply Voltage Min V (volt)

4.5

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

0.6

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

0.8

Low-Side Rise Time (ns)

20

Low-Side Fall Time (ns)

24

Low-Side Turn-On Prop Delay (ns)

15

Low Side Turn-off Propagation delay (ns)

35

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

-

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

150

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

-40

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

85

Output Configuration

Low-Side

Features

  • High peak-output current: 9 A peak (typical)
  • Wide operating range: 4.5 V to 18 V (typical)
  • Minimum pulse width: 50 ns
  • Latch-up proof: fully isolated process is inherently immune to any latch-up.
  • Input will withstand negative swing of up to 5 V
  • High capacitive load drive: 47,000 pF
  • Low delay time: 15 ns (typ.)
  • Logic high input for any voltage from 2.4 V to VS
  • Low equivalent input capacitance (typ.): 7 pF
  • Low supply current: 500 µA (typ.)
  • Output voltage swing to within 25 mV of ground or VS
  • Description

    MIC4421 and MIC4422 MOSFET gate drivers are rugged, efficient, and easy to use. The MIC4421 is an inverting driver, while the MIC4422 is a non-inverting driver.


    Both versions are capable of 9 A (peak) output and can drive the largest MOSFETs with an improved safe operating margin. The MIC4421/4422 accepts any logic input from 2.4 V to

    VS without external speed-up capacitors or resistor networks. Proprietary circuits allow the input to swing negative by as much as 5 V without damaging the part. Additional circuits protect against damage from electrostatic discharge.


    MIC4421/4422 gate drivers can replace three or more discrete components, reducing PCB area requirements, simplifying product design, and reducing assembly cost.


    Modern Bipolar/CMOS/DMOS construction guarantees freedom from latch-up. The rail-to-rail swing capability of CMOS/DMOS insures adequate gate voltage to the MOSFET during power up/down sequencing. Since these devices are fabricated on a self-aligned process, they have very low crossover current, run cool, use little power, and are easy to drive.

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