MIC4423YM-TR

Overview

The MIC4423YM-TR is a dual low-side MOSFET gate driver manufactured by Microchip Technology, housed in an 8-SOIC surface-mount package. It delivers a peak output current of 3A for both sourcing and sinking operations. The device operates within a supply voltage range of 4.5V to 18V and supports logic input thresholds of 0.8V (VIL) and 2.4V (VIH). Typical rise and fall times are 28ns and 32ns, respectively. It functions as a non-inverting buffer with independent channels and is rated for junction temperatures between -40°C and 150°C.

Feature Summary

• Provides high-speed switching capabilities with 3A peak drive current for efficient MOSFET control
• Features robust BiCMOS/DMOS construction for high reliability and noise immunity
• Supports wide supply voltage operation suitable for various power management applications

Applications

• Industrial motor control systems requiring precise low-side switching
• Power supply circuits utilizing N-channel or P-channel MOSFETs
• General-purpose buffer and driver applications in electronic equipment

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm the manufacturer designation as Microchip Technology, noting prior Micrel Semiconductor origins. Ensure compatibility with 8-SOIC footprint requirements. Check RoHS compliance status against current environmental regulations. Validate that the non-inverting logic configuration aligns with system design needs.

Selection Notes

Select this component for applications requiring dual independent low-side driving with moderate speed. Consider the 3A peak current capability for driving small to medium MOSFETs. Evaluate the 4.5V to 18V supply range against available power rails. Assess the 8-SOIC package constraints for PCB layout. Compare rise/fall times against switching frequency requirements to ensure adequate performance without excessive losses.

Part Context

This part belongs to the MIC4423/4424/4425 family of highly reliable BiCMOS/DMOS buffer/driver/MOSFET drivers. These devices represent higher output current versions designed for demanding power switching environments. The MIC4423 specifically denotes the dual low-side variant within this series, offering integrated solutions for parallel MOSFET driving or dual-channel control tasks.

Replacement Considerations

Public confirmed substitute part numbers: MIC4424YM-TR, MIC4425YM-TR.