MIC4421AYM

Overview

The MIC4421AYM is a high-speed, low-side MOSFET gate driver manufactured by Microchip Technology. It features a single inverting output capable of delivering a peak current of 9A. The device operates within a supply voltage range of 4.5V to 18V and utilizes an 8-pin SOIC package. Key timing parameters include a rise time of 20ns and a fall time of 24ns. It supports CMOS and TTL logic inputs and functions across an operating temperature range of -40°C to +85°C.

Feature Summary

• Delivers high peak output current for rapid MOSFET switching
• Provides inverting signal configuration for control flexibility
• Compatible with standard CMOS and TTL logic input levels

Applications

• Low-side power switching in motor control systems
• High-frequency DC-DC converter topologies
• Industrial power management circuits

Procurement Notes

Verify the specific suffix 'YM' corresponds to the 8-pin SOIC package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected distributor provides genuine Microchip Technology components to maintain reliability standards.

Selection Notes

Select this component for applications requiring a single-channel low-side driver with high peak current capability. The inverting configuration suits designs where signal phase inversion is required. Consider the SOIC package constraints for thermal management and PCB layout space compared to other package options in the series.

Part Context

This part belongs to the MIC4421A family of MOSFET drivers, designed for rugged and efficient operation. It complements non-inverting variants like the MIC4422A within the same product line. The device is engineered to drive large MOSFETs with improved safe operating area margins using a Bipolar/CMOS/DMOS process technology.

Replacement Considerations

The MIC4421AYN serves as a pin-compatible alternative in a PDIP-8 package. Verify package dimensions and thermal characteristics before substitution. Other family members such as the TC4421AVMF offer similar electrical performance but may differ in automotive qualification status.