MIC4421ACM-TR

Overview

The MIC4421ACM-TR is a high-speed, low-side single inverting MOSFET gate driver manufactured by Microchip Technology. It features a peak output current of 9A and operates within a supply voltage range of 4.5V to 18V. The device utilizes an 8-SOIC surface-mount package with a tape-and-reel configuration for automated assembly. Key electrical characteristics include a typical propagation delay of 15ns, rise time of 20ns, and fall time of 24ns. It supports logic inputs from 2.4V to VS without external speed-up components and offers protection against electrostatic discharge.

Feature Summary

• Delivers high peak output current capability for driving large capacitive loads
• Accepts logic inputs ranging from 2.4V to the supply voltage without external components
• Provides input protection allowing negative voltage swings up to 5V
• Features latch-up immunity through a fully isolated manufacturing process

Applications

• Switch mode power supplies
• Motor control systems
• Class-D switching amplifiers
• Pulse transformer drivers

Procurement Notes

Verify the specific suffix 'TR' confirms the tape-and-reel packaging format required for surface-mount assembly processes. Confirm that the 'A' designation aligns with the intended commercial or industrial temperature grade specifications for your application environment. Ensure compatibility with standard 8-SOIC footprint designs during PCB layout.

Selection Notes

Select this component when a low-side inverting configuration with high peak drive current is required. It is suitable for applications needing fast switching speeds and robust input tolerance. Consider the SOIC-8 package constraints and thermal dissipation requirements relative to the expected duty cycle and load capacitance.

Part Context

This part belongs to the MIC4421/MIC4422 family of MOSFET gate drivers. The MIC4421 variant specifically provides an inverting output function, distinguishing it from the non-inverting MIC4422. The family is designed for efficient and rugged operation in power management circuits requiring reliable switching performance.

Replacement Considerations

MIC4421CM is a direct pin-compatible alternative within the same product family.