MIC4421CM

Overview

The MIC4421CM is a low-side single inverting MOSFET gate driver manufactured by Microchip Technology. It features a peak output current of 9 A and operates within a supply voltage range of 4.5 V to 18 V. The device utilizes an 8-SOIC surface-mount package with a typical rise time of 20 ns and fall time of 24 ns. It supports CMOS and TTL logic inputs, functions as a dedicated IGBT/MOSFET driver, and is rated for an operating temperature range of 0°C to 150°C junction temperature.

Feature Summary

• Delivers high peak drive current for rapid switching of power devices
• Compatible with standard CMOS and TTL logic input levels
• Designed specifically for low-side configuration applications

Applications

• IGBT gate driving circuits
• N-channel MOSFET switching applications
• Power management IC sub-circuits

Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance requirements against specific project standards. Validate that the 8-SOIC package dimensions match PCB footprint specifications. Ensure thermal management strategies account for the specified junction temperature limits during operation.

Selection Notes

Select this component when a low-side driver with 9 A peak capability is required. Consider the 8-SOIC package for surface-mount assembly needs. Verify compatibility with system logic voltage levels. Evaluate thermal performance constraints relative to the 150°C maximum junction temperature rating for reliable long-term operation.

Part Context

This part belongs to the MIC4421 series of gate drivers. It serves as a specialized integrated circuit for controlling power switches. The device integrates bipolar/CMOS/DMOS process technology to achieve fast switching speeds. It is categorized under PMIC - Power Management ICs within the manufacturer's product portfolio.

Replacement Considerations

MIC4421ZM is listed as a direct replacement option available from Microchip Technology.