MIC4427CN

Overview

The MIC4427CN is a dual low-side MOSFET gate driver manufactured by Microchip Technology. It features a non-inverting configuration with two independent drivers and outputs. The device operates within a supply voltage range of 4.5 V to 18 V and delivers a peak output current of 1.5 A. It supports CMOS and TTL logic inputs, ensuring compatibility with standard digital interfaces. The component is housed in an 8-pin PDIP package and is rated for operation across a temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel architecture providing independent control for two low-side MOSFETs
• Non-inverting signal path maintaining input logic state at the output
• Totem-pole output stage designed for rapid switching transitions
• Direct interface capability with standard CMOS and TTL logic families

Applications

• Low-side switching in DC-DC converter topologies
• Motor control circuits requiring direct MOSFET drive
• Power supply management systems utilizing external FETs
• Industrial automation equipment driving power stages

Procurement Notes

Verify the specific suffix 'CN' against official Microchip documentation to confirm the package type and temperature grade. Ensure the ordering part number matches the required lead time and availability status. Confirm RoHS compliance and humidity sensitivity classification prior to procurement. Cross-reference the manufacturer's latest datasheet to validate pinout and electrical specifications.

Selection Notes

Select this component when a dual low-side driver with moderate current capability is required. The non-inverting configuration simplifies logic design compared to complementary pairs. Consider the PDIP package for through-hole assembly needs. Evaluate the 1.5 A peak current against the target MOSFET gate charge requirements to ensure adequate switching speed.

Part Context

This device belongs to the MIC4427 family of high-speed MOSFET drivers. The family includes variants with different packages such as SOIC and DFN, and extended temperature ranges like the TC4427 series. These drivers are designed to replace slower discrete transistor solutions, offering improved performance in compact power management applications.

Replacement Considerations

Check for direct pin-compatible alternatives within the same product line. Verify if upgraded versions with higher current ratings or automotive qualification are available. Ensure any substitute maintains the non-inverting logic and low-side topology.