MIC4421CN

Overview

The MIC4421CN is a low-side single inverting MOSFET gate driver manufactured by Microchip Technology. It features a peak output current of 9 A and operates within a supply voltage range of 4.5 V to 18 V. The device utilizes an 8-PDIP through-hole package. Typical switching performance includes a rise time of 20 ns and a fall time of 24 ns. Logic input thresholds are defined at 0.8 V for low and 2.4 V for high. The component is designed for industrial applications with a junction temperature range of 0°C to 150°C.

Feature Summary

• Provides high-current 9 A peak drive capability for efficient MOSFET switching
• Features inverting logic configuration for direct control interface compatibility
• Supports wide supply voltage operation from 4.5 V to 18 V
• Utilizes robust bipolar/CMOS/DMOS process technology for reliable performance

Applications

• MOSFET gate driving in power conversion circuits
• IGBT gate driving in motor control systems
• Industrial power management applications requiring low-side switching

Procurement Notes

Verify the specific suffix 'CN' indicates the PDIP-8 package variant when sourcing. Confirm RoHS compliance status as historical data may vary. Check manufacturer documentation for lead times and availability, as this part number may be subject to discontinuation or lifecycle changes. Ensure ordering quantities align with standard tube packaging specifications provided by the distributor.

Selection Notes

Select the MIC4421CN for applications requiring a single-channel low-side driver with high peak current capability. Consider the PDIP-8 package for through-hole prototyping or manufacturing needs. Evaluate the 20 ns/24 ns switching speeds against system timing requirements. Compare against surface-mount alternatives like the MIC4421CM if PCB space constraints dictate a change in mounting style.

Part Context

The MIC4421CN belongs to the MIC4421/MIC4422 family of high-speed MOSFET drivers. These devices are designed to provide fast switching times and high peak currents to minimize conduction losses in power electronics. The CN suffix specifically denotes the plastic dual in-line package format, distinguishing it from surface-mount variants within the same functional family.

Replacement Considerations

• MIC4421ZN