MIC4451YM-TR

Overview

The MIC4451YM-TR is a single-channel, low-side MOSFET gate driver manufactured by Microchip Technology. It operates within a supply voltage range of 4.5 V to 18 V and delivers a peak output current of 12 A. The device features an inverting logic configuration with typical rise and fall times of 25 ns, and maximum on/off delays of 80 ns. It is housed in an 8-pin SOIC package (3.90 mm width) and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides high-current drive capability for efficient switching of N-channel power MOSFETs
• Features fast propagation characteristics with symmetric rise and fall times for precise timing control
• Incorporates CMOS-compatible input logic levels for direct interfacing with standard digital controllers

Applications

• High-speed DC-DC converter topologies requiring robust gate drive signals
• Motor control systems utilizing low-side switching configurations
• Power supply circuits demanding rapid MOSFET transition speeds

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing components. Confirm that the 'YM' designation corresponds to the specified SOIC-8 package dimensions and thermal characteristics. Ensure compatibility with the required operating temperature range and supply voltage specifications for the target application environment before finalizing procurement.

Selection Notes

Select this component for applications requiring a single-channel low-side driver with high peak current output. It is suitable for designs needing fast switching speeds to minimize conduction losses. Consider the inverting logic requirement and ensure the input signal levels align with the CMOS interface specifications. Evaluate the thermal performance within the SOIC-8 package constraints for the expected duty cycle.

Part Context

This part belongs to the MIC4451 series of high-speed MOSFET drivers from Microchip Technology. It is functionally related to other variants such as the MIC4451YM, differing primarily in packaging format. The series is designed for general-purpose power management applications where reliable and fast switching of power transistors is critical.

Replacement Considerations

Check for MIC4451YM if tube packaging is acceptable instead of tape-and-reel. Verify pinout compatibility with alternative low-side drivers offering similar 12A current ratings and 8-pin SOIC packages.