MIC4480YME-TR

Overview

The MIC4480YME-TR is a low-side gate driver IC manufactured by Microchip Technology, designed for driving N-channel MOSFETs. It features both inverting and non-inverting output configurations within an 8-SOIC-EP package. The device operates with a maximum supply voltage of 32 V and delivers peak output currents of 6 A source and 3 A sink. It supports an operating temperature range from -40°C to +125°C TJ. This component is currently obsolete and no longer manufactured.

Feature Summary

• Provides dual output channels with independent inverting and non-inverting logic control
• Capable of high-speed switching with 6 A source and 3 A sink peak drive current
• Integrated exposed pad design facilitates thermal management for surface-mount applications

Applications

• N-channel MOSFET gate driving in power conversion circuits
• Low-side switching in motor control systems
• DC-DC converter topologies requiring isolated or non-isolated gate drive signals

Procurement Notes

This part number is officially classified as obsolete by the manufacturer and is no longer in production. Procurement must focus on identifying verified substitute components or alternative sources for existing inventory. Verify that any replacement device matches the original pinout, electrical specifications, and package dimensions to ensure compatibility with the intended circuit design without requiring board modifications.

Selection Notes

Engineers should evaluate this component based on its specific 32 V supply limit and asymmetric drive strength (6 A source / 3 A sink). The choice between inverting and non-inverting outputs depends on the control signal polarity requirements. Due to the obsolete status, selection processes must prioritize cross-referencing against active alternatives that maintain equivalent thermal performance and switching speed characteristics for the target application environment.

Part Context

The MIC4480 belongs to the MIC44xx series of gate drivers from Microchip Technology, formerly Micrel. These devices are engineered for robust performance in industrial and automotive environments. The YME suffix indicates an 8-SOIC package with an exposed pad, optimized for thermal dissipation. This specific variant integrates dual drivers to simplify circuit design for half-bridge or single-ended low-side applications.

Replacement Considerations

Official substitutes include MIC4480YME-T5 and MIC4480YMME-TR. Verify that the selected replacement maintains identical pin configuration and electrical parameters to ensure seamless integration into existing designs without hardware redesign.