MIC4420BN

Overview

The MIC4420BN is a low-side MOSFET gate driver manufactured by Microchip Technology. It utilizes a Bipolar/CMOS/DMOS process to deliver a peak output current of 6A for both sourcing and sinking. The device features non-inverting inputs and operates within an extended temperature range of -40°C to +150°C. Typical rise and fall times are specified at 12ns and 13ns, respectively. It is housed in an 8-pin PDIP package with a standard 0.300-inch (7.62mm) width.

Feature Summary

• Provides high-current drive capability suitable for power MOSFETs and IGBTs
• Features non-inverting logic input configuration
• Designed for robust operation across wide industrial temperature ranges

Applications

• Low-side switching for power MOSFETs
• Gate driving for IGBT modules
• Industrial motor control circuits

Procurement Notes

Verify the specific manufacturer origin, as the component was originally developed by Micrel Semiconductor before acquisition by Microchip Technology. Confirm that the 8-PDIP package matches your PCB footprint requirements. Ensure the non-inverting input logic aligns with your system design. Check for any specific ordering suffixes that may indicate different temperature grades or packaging options.

Selection Notes

Select this component when a dedicated low-side driver with 6A peak current is required. It is suitable for applications where non-inverting control signals are available. Consider the through-hole PDIP package if prototyping or legacy board compatibility is necessary. Evaluate the 12ns/13ns switching speeds against your maximum operating frequency requirements.

Part Context

This part belongs to the MIC4420 family of dual MOSFET drivers. While often associated with Micrel due to its history, it is now distributed under Microchip Technology. The 'BN' suffix typically denotes the PDIP package variant. It serves as a fundamental building block for power electronics requiring reliable gate drive isolation from the control logic.

Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided source material.