MIC4423CN

Overview

The MIC4423CN is a high-speed, low-side MOSFET driver manufactured by Microchip Technology. It features a peak output current of 3A and operates with a supply voltage range of 4.5V to 18V. The device utilizes a CMOS input interface compatible with standard logic levels. Key electrical characteristics include a typical propagation delay of 25ns and a rise/fall time of 15ns. It is housed in an 8-pin SOIC package.

Feature Summary

• High peak output drive capability for efficient MOSFET switching
• Low standby current consumption for power efficiency
• Integrated bootstrap diode simplifies high-side driving applications

Applications

• Motor control systems requiring fast switching speeds
• Power supply circuits utilizing synchronous rectification
• Inverter bridges in industrial automation equipment

Procurement Notes

Verify the specific suffix 'CN' indicates the commercial temperature grade and SOIC package variant. Confirm that the ordering part number matches the exact pinout and thermal requirements of your PCB layout. Ensure compatibility with the intended operating voltage range before finalizing procurement orders.

Selection Notes

Select this component when a single-channel low-side driver with moderate current capacity is required. Consider the propagation delay specifications for timing-sensitive applications. Evaluate the thermal performance within the SOIC package against the expected load conditions and ambient temperature constraints.

Part Context

This driver belongs to the MIC44xx series of MOSFET drivers designed for general-purpose switching applications. It serves as a bridge between low-power logic controllers and high-power MOSFET switches. The series offers various configurations including high-side, low-side, and half-bridge options.

Replacement Considerations

Check for direct replacements such as the MIC4423YM or other variants within the same family that may offer different package types or temperature ranges. Verify pin-to-pin compatibility and electrical parameter equivalence before substituting.