MIC4427BM-TR

Overview

The MIC4427BM-TR is a dual low-side MOSFET gate driver manufactured by Microchip Technology. It features two non-inverting drivers in an 8-pin SOIC package. The device operates with a supply voltage range of 4.5V to 18V and delivers a peak output current of 1.5A for both sourcing and sinking. Typical switching times include a rise time of 20ns and a fall time of 29ns. It supports logic input levels with VIL of 0.8V and VIH of 2.4V, ensuring compatibility with standard digital interfaces.

Feature Summary

• Dual-channel architecture providing independent control for two low-side MOSFETs
• High-speed switching capability with nanosecond-level rise and fall times
• Robust 1.5A peak source and sink output current drive
• Non-inverting logic configuration for direct signal interfacing

Applications

• Low-side switching in DC-DC converter topologies
• Motor control circuits requiring dual MOSFET drive
• Power management systems utilizing N-channel MOSFETs
• Industrial automation power stages

Procurement Notes

Verify the specific suffix 'BM' against the required operating temperature range and package tolerance. Confirm that the 'TR' designation indicates tape-and-reel packaging if automated assembly is intended. Ensure the component meets RoHS compliance requirements for the target market. Cross-reference the manufacturer part number with official Microchip documentation to confirm current production status and availability.

Selection Notes

Select this component when dual low-side driving is required with moderate current capabilities. The 1.5A output is suitable for small to medium-sized MOSFETs. Consider the 4.5V minimum supply voltage for system power rail compatibility. The non-inverting configuration simplifies logic design compared to inverting alternatives. Evaluate thermal performance within the specified operating temperature range during PCB layout.

Part Context

This part belongs to the MIC4427 series of dual MOSFET drivers from Microchip Technology. It is designed as a cost-effective solution for applications needing two isolated or semi-isolated gate drives. The series utilizes BiCMOS/DMOS technology for efficiency. It serves as a complement to single-channel drivers like the MIC4421 and higher-current variants in the same family.

Replacement Considerations

MIC4427YM is listed as a direct substitute. Verify pinout compatibility and electrical specifications before substitution. Check for any differences in package dimensions or thermal characteristics between the BM and YM suffixes.