MIC4425BWM

Overview

The MIC4425BWM is a dual low-side MOSFET gate driver manufactured by Microchip Technology, housed in a 16-pin SOIC package. It delivers a peak output current of 3 A with rise and fall times of 35 ns. The device operates on a supply voltage ranging from 4.5 V to 18 V and accepts CMOS or TTL logic inputs. It functions within an operating temperature range of -40°C to +85°C and draws a typical quiescent current of 2.5 mA.

Feature Summary

• Dual-channel configuration providing independent control for two low-side MOSFETs.
• High-output current capability of 3 A ensures rapid switching of power devices.
• Immunity to latch-up under all conditions within specified power and voltage ratings.
• Robust ground pin tolerance capable of surviving up to 5V of noise spiking.

Applications

• Motor drive systems requiring precise low-side switching control
• Power supply circuits utilizing high-speed MOSFET actuation
• Industrial automation equipment needing reliable gate driving

Procurement Notes

Verify component authenticity through authorized channels as the MIC4425BWM is listed as obsolete. Confirm that the SOIC-16 package matches design requirements. Check RoHS compliance status carefully due to potential variations in legacy stock. Ensure storage conditions account for moisture sensitivity classification prior to soldering.

Selection Notes

Select this component when a dual low-side driver with 3 A peak current is required. It suits designs needing fast 35 ns switching speeds within a 4.5 V to 18 V supply range. Consider the SOIC-16 footprint for surface mount assembly. Verify compatibility with CMOS or TTL logic levels for input signals.

Part Context

The MIC4425BWM belongs to the MIC4423/4424/4425 family of highly reliable BiCMOS/DMOS buffer drivers. These devices are higher output current versions of the MIC4426/4427/4428 series. All three families share pin compatibility, allowing for flexible design transitions while maintaining reliability in demanding electrical environments.

Replacement Considerations

Public confirmed substitute part numbers are not available for this obsolete component. Designers should evaluate equivalent dual low-side drivers from the same manufacturer or compatible alternatives based on pinout and electrical specifications.