MIC4424CN

Overview

The MIC4424CN is a dual low-side MOSFET gate driver from the MIC4423/4424/4425 family, manufactured by Microchip Technology. It features a Bipolar/CMOS/DMOS process with independent non-inverting channels. Key electrical parameters include a 3A peak output current (source/sink), a supply voltage range of 4.5V to 18V, and logic input thresholds of 0.8V (VIL) and 2.4V (VIH). Typical propagation delay is under 40ns, with rise/fall times of 28ns/32ns for the YM variant. It operates within a junction temperature range of -40°C to 150°C and is housed in an 8-pin PDIP package.

Feature Summary

• High 3A-peak output current capability for driving large capacitive loads
• Latch-up protection exceeding 500mA reverse current
• Logic inputs withstand swings down to –5V
• Matched rise and fall times with low equivalent input capacitance

Applications

• Low-side MOSFET switching in power supplies
• Motor control circuits requiring high peak current
• Industrial inverters and converters
• Battery management systems

Procurement Notes

Verify the specific suffix against the official datasheet to confirm package type and temperature grade. The 'CN' suffix typically denotes an 8-pin PDIP package with commercial or industrial temperature ratings depending on the manufacturer's current classification. Ensure compatibility with existing PCB footprints and thermal management requirements for the chosen package style.

Selection Notes

Select this component when dual independent low-side drive is required with high peak current capability. It is suitable for applications needing TTL-compatible logic inputs independent of the supply voltage. Consider the 8-pin PDIP package for through-hole assembly needs. Verify that the 18V maximum supply voltage meets the system requirements.

Part Context

Part of the MIC442x family, which includes pin-compatible variants like MIC4423 (inverting) and MIC4425 (differential). These drivers are improved versions of the MIC426/427/428 series, offering higher reliability and performance in demanding electrical environments while maintaining backward compatibility with older designs.

Replacement Considerations

Direct substitutes include MIC4423CN (inverting configuration) and MIC4425CN (differential configuration) due to pin compatibility. Other compatible parts from the same family may be used if logical inversion or differential signaling is acceptable.