MIC4427ZM

Overview

The MIC4427ZM is a dual low-side MOSFET gate driver manufactured by Microchip Technology in an 8-SOIC package. It provides non-inverting outputs with peak currents of 1.5A source and sink. The device operates on a supply voltage range of 4.5V to 18V. Typical propagation delays are characterized by rise times of 20ns and fall times of 29ns. Logic thresholds are defined at 0.8V for VIL and 2.4V for VIH. The component supports junction temperatures from 0°C to 150°C.

Feature Summary

• Dual-channel configuration for independent low-side switching control
• High-speed performance with nanosecond-level transition times
• Robust drive capability supporting both N-channel and P-channel MOSFETs

Applications

• DC-DC converter synchronous rectification
• Motor control bridge drivers
• Power supply output stages

Procurement Notes

Verify the specific suffix 'ZM' corresponds to the 8-SOIC tube packaging variant rather than tape-and-reel options like 'TR'. Confirm RoHS compliance status and check for any recent Package Change Notices (PCN) regarding assembly sites or material updates. Ensure the ordering quantity aligns with the standard tube count if bulk procurement is required.

Selection Notes

Select this component when dual isolated low-side driving is required without high-side complexity. The 1.5A peak current is suitable for medium-power MOSFETs. Verify that the input logic levels match the controlling microcontroller or FPGA. Consider thermal dissipation requirements based on the SOIC package thermal resistance and expected switching frequency.

Part Context

This part belongs to the MIC442x series of high-speed MOSFET drivers. It shares functional similarities with the MIC4426 and MIC4428 but differs in channel configuration and inversion logic. The ZM suffix specifically denotes the SOIC surface-mount package, distinguishing it from DIP or TR variants within the same family.

Replacement Considerations

Direct substitutes include the MIC4426YM and MIC4428YM for similar dual-driver functionality. Cross-reference pinouts carefully as inversion logic may differ between these models. Verify that alternative packages maintain compatible footprint dimensions for PCB re-use.