MIC4423ZN

Overview

The MIC4423ZN is a dual low-side MOSFET gate driver manufactured by Microchip Technology. It features two independent inverting channels capable of delivering a peak output current of 3A. The device operates with a supply voltage range of 4.5V to 18V and utilizes an 8-pin PDIP package. Designed for high-speed switching applications, it provides robust drive capability for power MOSFETs.

Feature Summary

• Dual channel configuration with independent inverting outputs
• High peak output current capability of 3A per channel
• Operates within a wide supply voltage range from 4.5V to 18V
• Compatible with standard logic inputs for direct interface

Applications

• Power supply circuits requiring low-side switching
• Motor control systems utilizing MOSFET bridges
• Industrial automation equipment with high-current loads
• Inverter topologies for AC motor drives

Procurement Notes

Verify the specific suffix 'ZN' corresponds to the PDIP-8 package variant when sourcing. Confirm RoHS compliance status through official Microchip documentation or authorized distributor certificates. Ensure the supplier is an authorized partner to guarantee component authenticity and traceability. Check for any recent obsolescence notices or lifecycle changes directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when dual isolated low-side driving is required with moderate current demands. The 3A peak current suits most standard power MOSFETs in industrial applications. Consider the inverting logic function to ensure compatibility with control signal polarity. Evaluate thermal requirements based on the specific PCB layout and ambient operating conditions for the PDIP-8 package.

Part Context

This part belongs to the MIC4423 family of dual MOSFET drivers. It shares functional similarities with other members like the MIC4422 but differs in pinout or specific electrical characteristics. The ZN suffix denotes the plastic DIP packaging option. It serves as a bridge between low-power logic controllers and high-power switching elements.

Replacement Considerations

Direct substitutes include the MIC4422YM if non-inverting logic is acceptable. Verify pin-to-pin compatibility with the MIC4423AYM for SOIC packages. Cross-reference with Micrel original datasheets for legacy design continuity. Ensure replacement parts match the 4.5V-18V supply range and 3A current rating.