MIC4428YM

Overview

The MIC4428YM is a dual low-side MOSFET gate driver manufactured by Microchip Technology. It features independent inverting and non-inverting outputs, each capable of delivering a peak current of 1.5A for both sourcing and sinking. The device operates within a supply voltage range of 4.5V to 18V and supports logic input levels with VIL at 0.8V and VIH at 2.4V. Typical rise and fall times are 20ns and 29ns, respectively. It is housed in an 8-SOIC package with a width of 3.90mm and functions across a junction temperature range of -40°C to 150°C.

Feature Summary

• Provides dual independent low-side drive configurations with complementary inverting and non-inverting output channels.
• Delivers high peak output current capability of 1.5A for efficient switching of N-channel and P-channel MOSFETs.
• Ensures fast switching performance with typical rise and fall times suitable for high-speed applications.

Applications

• Driving N-channel and P-channel power MOSFETs in low-side switching circuits
• General-purpose gate driving for power management ICs
• Industrial motor control systems requiring robust low-side drive

Procurement Notes

Verify the specific suffix 'YM' corresponds to the 8-SOIC package variant when ordering. Confirm that the 'TR' designation indicates tape and reel packaging if required for automated assembly processes. Ensure compatibility with the target PCB footprint dimensions of 0.154 inches width. Cross-reference the manufacturer part number against official Microchip documentation to validate active status and RoHS compliance before finalizing procurement.

Selection Notes

Select this component when dual independent low-side drive signals are required from a single package. The presence of both inverting and non-inverting outputs simplifies circuit design for half-bridge or synchronous rectifier topologies without needing additional inverters. Consider the 1.5A peak current rating to ensure adequate drive strength for the intended MOSFET gate capacitance. Verify that the operating supply voltage range aligns with the system's available power rails.

Part Context

The MIC4428 belongs to the MIC4426/7/8 family of dual low-side MOSFET drivers from Microchip Technology. While sharing similar electrical characteristics and package options, the MIC4428 is distinguished by its combination of inverting and non-inverting outputs. This contrasts with the MIC4426 (dual inverting) and MIC4427 (dual non-inverting). The YM suffix denotes the SOIC package version, distinct from other package variants like MSOP.

Replacement Considerations

MIC4426YM serves as a substitute if only inverting outputs are needed. MIC4427YM is suitable if only non-inverting outputs are required. Direct pin-to-pin replacement requires verifying that the specific output configuration matches the existing circuit design requirements.