MIC4428BM-TR

Overview

The MIC4428BM-TR is a high-speed, dual MOSFET driver manufactured by Microchip Technology. It features two independent channels designed to drive N-channel power MOSFETs with enhanced performance and reliability. The device operates within a supply voltage range of 4.5V to 18V, providing peak output currents of up to 3A for both sourcing and sinking. It incorporates shoot-through protection to prevent simultaneous conduction in half-bridge configurations. The component utilizes a SOIC-8 surface-mount package, ensuring compact integration into power management circuits while maintaining robust electrical characteristics for efficient switching applications.

Feature Summary

• Dual independent channel architecture for driving N-channel MOSFETs
• Integrated shoot-through protection mechanism
• High peak output current capability for fast switching
• Wide operating supply voltage range

Applications

• Half-bridge and full-bridge motor control systems
• DC-DC converter gate drive stages
• Inverter circuits for power conversion
• Battery management system switch drivers

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm the 'B' grade designation matches required temperature specifications. Ensure the SOIC-8 footprint aligns with PCB layout constraints. Cross-reference the manufacturer's latest datasheet for pinout accuracy and absolute maximum ratings before finalizing procurement plans.

Selection Notes

Select this component when dual isolated gate drives are required for N-channel MOSFETs in space-constrained designs. Consider its 3A peak current capability for moderate-power switching applications. Evaluate the shoot-through protection feature if operating in half-bridge topologies to minimize cross-conduction risks. Verify that the 4.5V minimum supply voltage suits the logic interface requirements of the control circuitry.

Part Context

This part belongs to Microchip's family of high-speed MOSFET drivers, specifically optimized for driving power switches in industrial and consumer electronics. The MIC4428 variant provides dual-channel functionality, distinguishing it from single-channel counterparts like the MIC4422. Its design focuses on reducing propagation delay and improving efficiency in power conversion stages, serving as a critical interface between low-voltage logic controllers and high-power semiconductor devices.

Replacement Considerations

Direct substitutes include the MIC4428AN (dip package) or MIC4428YM (SOIC package) for form-factor changes. For functional equivalents, consider the MIC4427 series if single-channel operation suffices. Verify pin compatibility and thermal performance when transitioning between package types or manufacturers.