MIC4427YM

Overview

The MIC4427YM is a dual low-side MOSFET gate driver manufactured by Microchip Technology. It features two non-inverting outputs with a peak output current of 1.5 A for both sourcing and sinking. The device operates within a supply voltage range of 4.5 V to 18 V. Typical switching performance includes a rise time of 20 ns and a fall time of 29 ns. It utilizes an 8-SOIC package (3.90 mm wide) designed for surface-mount installation. The component supports CMOS and TTL logic inputs, with defined input thresholds at 0.8 V and 2.4 V. It functions across a temperature range from -40°C to +85°C.

Feature Summary

• Dual-channel architecture providing independent low-side drive capabilities for N-channel and P-channel MOSFETs.
• High-efficiency BiCMOS/DMOS fabrication process ensures low power consumption and reliable operation.
• Non-inverting logic configuration simplifies interface with standard control signals.

Applications

• Driving heavily loaded clock lines
• Coaxial cable transmission
• Piezoelectric transducer actuation

Procurement Notes

Verify the specific suffix 'YM' corresponds to the SOIC-8 tube packaging variant rather than the tape-and-reel version. Confirm RoHS compliance status and check for recent Product Change Notices regarding assembly sites or material composition updates prior to finalizing procurement orders.

Selection Notes

Select this component when dual independent low-side driving is required with moderate peak current capability. Ensure the application voltage remains within the 4.5 V to 18 V operational window. Consider thermal management requirements given the 8-SOIC package constraints and the specified junction temperature limits during high-frequency switching operations.

Part Context

This part belongs to the MIC4426/4427/4428 family of dual low-side MOSFET drivers. The MIC4427 specifically denotes the non-inverting logic configuration, distinguishing it from the inverting MIC4426. It shares core electrical characteristics with the family but differs in logical signal processing relative to the input pins.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before considering alternative manufacturers or pin-compatible variants.