MIC4128YMME

Overview

The MIC4128YMME is a dual low-side MOSFET gate driver from the Microchip Technology MIC4128 family. It provides independent inverting and non-inverting outputs with a peak output current of 1.5 A. The device operates on a single supply voltage ranging from 4.5 V to 20 V. Key electrical characteristics include a typical rise time of 20 ns and a fall time of 18 ns. It supports logic input levels of 0.8 V (VIL) and 2.4 V (VIH). The component is housed in an 8-MSOP-EP package and functions within a junction temperature range of -40°C to +125°C.

Feature Summary

• Dual-channel architecture providing separate inverting and non-inverting drive paths for flexible control applications.
• High-current capability delivering 1.5 A source and sink currents to efficiently switch N-channel MOSFETs.
• Integrated transient protection mechanisms designed to enhance reliability during switching operations.

Applications

• Driving N-channel power MOSFETs in synchronous rectification circuits
• Low-side switching stages in DC-DC converter topologies
• Motor control interfaces requiring isolated or differential gate signals

Procurement Notes

Verify the specific suffix 'YMME' corresponds to the 8-MSOP-EP package variant rather than the SOIC-8 version. Confirm moisture sensitivity level (MSL 3) requirements for storage and reflow soldering profiles. Ensure the ordering part number matches the exact pinout and thermal pad configuration required by the PCB layout.

Selection Notes

Select this component when a dual low-side driver with distinct phase outputs is required. The 1.5 A drive strength suits medium-power MOSFET applications. Consider the MSOP-EP package for improved thermal dissipation compared to standard plastic packages. Verify that the input logic voltage thresholds align with the controlling microcontroller or FPGA output levels.

Part Context

This device belongs to the MIC4126/4127/4128 family of dual low-side gate drivers fabricated on a BiCMOS/DMOS process. The MIC4128 specifically distinguishes itself by offering both inverting and non-inverting outputs, whereas other family members may offer different configurations. It serves as a robust interface between low-voltage logic controllers and high-power switching elements.

Replacement Considerations

Check for direct substitutes within the same Microchip family, such as the MIC4126 or MIC4127, noting differences in output configuration. Verify pin compatibility if replacing with similar devices from other manufacturers. Ensure the replacement maintains the 1.5 A output current rating and compatible supply voltage range.

FAQ

What is the difference between the MIC4128YMME and MIC4128YME?

The MIC4128YMME uses an 8-MSOP-EP package with an exposed thermal pad, while the MIC4128YME typically refers to the SOIC-8 package variant. Both share the same internal circuitry and electrical specifications.

Does the MIC4128YMME provide galvanic isolation?

No, the MIC4128YMME is a non-isolated gate driver. It requires a common ground reference between the logic input and the power supply unless external isolation components are added.