MIC4421ZM-TR

Overview

The MIC4421ZM-TR is a high-speed, low-side MOSFET gate driver manufactured by Microchip Technology. It features a single channel with an inverting configuration, housed in an 8-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 18 V and delivers a peak output current of 9 A. Key timing parameters include a rise time of 20 ns and a fall time of 24 ns. It supports IGBT and N-channel MOSFET loads, functions at temperatures from 0°C to +70°C, and utilizes tape-and-reel packaging for automated assembly.

Feature Summary

• Delivers high peak output current capability for rapid switching of power devices
• Features a compact surface-mount package suitable for space-constrained designs
• Provides inverting logic configuration for straightforward interface with control signals

Applications

• Driving N-channel MOSFETs in power conversion circuits
• Switching IGBT modules in motor drive systems
• High-frequency DC-DC converter topologies requiring fast edge rates

Procurement Notes

Verify the specific suffix 'TR' confirms tape-and-reel packaging when ordering. Ensure the component meets RoHS compliance requirements for your manufacturing process. Confirm that the 8-pin SOIC footprint matches your PCB layout specifications. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when a single-channel, low-side driver with high peak current is required. The inverting configuration must align with the logic polarity of the driving microcontroller or PWM source. Consider the 9 A peak current capability against the gate charge requirements of the target MOSFET or IGBT. Verify that the operating temperature range of 0°C to +70°C suits the environmental conditions of the application.

Part Context

This part belongs to the MIC4421 series of high-speed gate drivers. It is designed specifically for low-side applications, distinguishing it from high-side or half-bridge variants. The TR suffix indicates reel packaging, differentiating it from tube-packaged versions like the MIC4421YM. It serves as a bridge between low-voltage logic controls and high-power switching elements.

Replacement Considerations

Direct substitutes may include other single-channel low-side drivers with similar 9 A peak current ratings and SOIC-8 packages. Verify compatibility regarding supply voltage ranges and propagation delays. Ensure the replacement maintains the inverting logic configuration if signal inversion is critical to the system design.