MIC4426ZM

Overview

The MIC4426ZM is a dual low-side MOSFET gate driver manufactured by Microchip Technology. It features an inverting logic configuration with independent channels. The device supports supply voltages from 4.5V to 18V and delivers peak output currents of 1.5A for both sourcing and sinking. Logic thresholds are defined at 0.8V (VIL) and 2.4V (VIH). Typical switching times are 20ns rise and 29ns fall. It operates within a junction temperature range of 0°C to 150°C and is housed in an 8-SOIC package.

Feature Summary

• Dual-channel architecture providing independent control for two N-channel or P-channel MOSFETs
• High-speed switching capability with typical rise and fall times of 20ns and 29ns respectively
• Robust drive strength delivering 1.5A peak source and sink current
• Wide operating voltage range supporting 4.5V to 18V supply rails

Applications

• Low-side switching in DC-DC converters
• Motor control circuits requiring high-speed MOSFET actuation
• Inverter bridge configurations using complementary low-side drivers
• Industrial power management systems

Procurement Notes

Verify the specific suffix 'ZM' indicates the tube packaging format, distinct from the '-TR' tape-and-reel variant. Confirm RoHS3 compliance status as per the latest manufacturer documentation. Ensure the inverting logic function aligns with system design requirements, as the non-inverting MIC4427 is the alternative for same-pinout applications. Check assembly site changes documented in Product Change Notices.

Selection Notes

Select this component when dual independent low-side driving is required with inverting logic. The 1.5A output current suits medium-power MOSFETs. Compare against the MIC4427 if non-inverting input behavior is needed, as they share pinouts. Consider the MIC4428 for high-side applications. Verify thermal performance within the 0°C to 150°C junction range for the target environment.

Part Context

Part of the MIC442x family of high-speed MOSFET drivers. Shares pin compatibility with MIC4427 (non-inverting) and MIC4428 (high-side). Manufactured by Microchip following its acquisition of Micrel. Available in 8-SOIC packages. Designed for efficient switching of power MOSFETs in various power conversion topologies.

Replacement Considerations

MIC4427ZM offers identical pinout and electrical characteristics but with non-inverting logic. MIC4426ZM-TR provides the same functionality in tape-and-reel packaging. Cross-reference with other dual low-side drivers if lead counts or current ratings differ significantly.