MIC4426YN

Overview

The MIC4426YN is a dual low-side gate driver IC manufactured by Microchip Technology, housed in an 8-pin PDIP package. It features two independent inverting channels designed to drive N-channel and P-channel MOSFETs. The device operates with a supply voltage range of 4.5V to 18V and supports logic input levels of 0.8V (VIL) and 2.4V (VIH). Peak output current capability is 1.5A for both sourcing and sinking. Typical switching times are 20ns rise time and 29ns fall time. It functions within a junction temperature range of -40°C to 150°C.

Feature Summary

• Dual independent low-side gate driver channels for simultaneous control of power switches
• Capable of driving both N-channel and P-channel MOSFETs with high peak output current
• Wide operating supply voltage range supporting various system power architectures
• Robust thermal performance allowing operation at elevated junction temperatures

Applications

• Driving N-channel and P-channel power MOSFETs in DC-DC converters
• Gate drive stages in motor control applications requiring low-side switching
• Inverter circuits utilizing complementary or half-bridge topologies with separate low-side drivers

Procurement Notes

Verify the specific suffix 'YN' confirms the PDIP-8 through-hole package variant when ordering. Ensure the supplier provides documentation confirming the component meets the specified 4.5V to 18V supply range and 1.5A peak current ratings. Cross-reference the manufacturer part number with official Microchip databases to confirm authenticity and current production status before finalizing procurement.

Selection Notes

Select this component when a dual low-side configuration is required for driving discrete MOSFETs in non-isolated applications. The PDIP-8 package is suitable for prototyping or designs utilizing through-hole mounting techniques. Consider the 1.5A peak current limit and 20ns/29ns switching speeds against load requirements. Verify that the input logic voltage levels align with the controlling microcontroller or logic family used in the design.

Part Context

This component belongs to the MIC4426 series of gate drivers from Microchip Technology. It is distinct from other variants such as the MIC4426YM which utilizes an SOIC surface-mount package. The series is designed for general-purpose power switching applications where reliable low-side drive is necessary for both N-channel and P-channel devices.

Replacement Considerations

The MIC4426YM serves as a pin-compatible alternative offering the same electrical characteristics but in an 8-SOIC surface-mount package. Verify that the PCB footprint and assembly process support the required package type before substituting.