MIC4429BM

Overview

The MIC4429BM is a single-channel, low-side MOSFET gate driver manufactured by Microchip Technology. It provides a peak output current of 6 A and operates with an inverting configuration. The device supports supply voltages between 4.5 V and 18 V. It features rise and fall times of 25 ns each. The component functions within a temperature range of -40°C to +125°C. It consumes 3 mA of operating current and dissipates up to 470 mW. The unit is housed in an 8-SOIC surface-mount package.

Feature Summary

• Delivers high-current drive capability for efficient switching of N-channel and P-channel MOSFETs
• Utilizes Bipolar/CMOS/DMOS process technology for robust performance
• Provides inverting logic compatibility with CMOS and TTL inputs

Applications

• Low-side MOSFET switching in power conversion circuits
• Motor control applications requiring fast switching speeds
• General-purpose power management systems

Procurement Notes

Verify the manufacturer origin carefully, as the MIC4429BM was originally developed by Micrel Semiconductor before its acquisition by Microchip Technology. Ensure the datasheet references align with the specific revision required for your design. Confirm that the 8-SOIC package dimensions match your PCB footprint specifications exactly. Check for moisture sensitivity level requirements during storage and handling procedures.

Selection Notes

Select this component when a single-channel, low-side driver with 6 A peak current is required. It is suitable for designs needing inverting logic and operation up to 18 V. Consider the 25 ns transition times for switching frequency limitations. The wide operating temperature range makes it appropriate for industrial environments. Verify input logic compatibility with your microcontroller or controller IC.

Part Context

This part belongs to the TC4429 family of gate drivers. The MIC prefix typically denotes the Micrel-originated version now managed by Microchip. It serves as a low-side driver counterpart to other devices in the series. The BM suffix indicates the specific package and temperature grade variant within the product line.

Replacement Considerations

The TC4429VOA is a documented alternative from Microchip offering similar 6 A low-side driving capabilities. Both devices share comparable electrical characteristics and functional configurations. Verify pinout compatibility and package dimensions before substitution.