MIC4424YN

Overview

The MIC4424YN is a dual low-side MOSFET gate driver manufactured by Microchip Technology. It operates within a supply voltage range of 4.5 V to 18 V and supports TTL logic inputs with specified thresholds of 0.8 V for low and 2.4 V for high states. The device provides peak output currents of 3 A for both sourcing and sinking, enabling efficient switching of N-channel and P-channel MOSFETs. Key timing parameters include rise times of approximately 23 ns to 28 ns and fall times between 25 ns and 32 ns, with maximum on/off delays of 33 ns. It is housed in an 8-pin SOIC package and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Dual channel configuration providing independent control for two low-side MOSFETs
• High peak output current capability of 3 A for rapid switching transitions
• TTL-compatible logic input interface for direct microcontroller integration
• Non-inverting signal path maintaining input-output phase alignment

Applications

• Industrial motor drive systems requiring precise low-side switching
• Power supply circuits utilizing synchronous rectification
• Inverter topologies for AC motor control applications

Procurement Notes

Verify the specific suffix 'YN' corresponds to the 8-pin SOIC surface-mount package variant. Confirm that the required operating temperature range aligns with the industrial specification of -40°C to +85°C. Ensure compatibility with the 4.5 V to 18 V supply voltage limits for your target circuit design before finalizing procurement.

Selection Notes

Select this component when dual low-side driving is required with high peak current capabilities. It is suitable for designs needing TTL-compatible inputs and fast switching speeds. Consider the SOIC-8 package constraints for PCB layout. Verify that the application does not exceed the 18 V maximum supply voltage or require high-side driving capabilities.

Part Context

This part belongs to the MIC4424 series of dual MOSFET gate drivers. It shares functional similarities with variants like MIC4424YM (SOIC) and MIC4424ZN (PDIP), differing primarily in packaging and thermal characteristics. The series is designed for general-purpose power management and switching applications within the PMIC category.

Replacement Considerations

Direct substitutes include MIC4424YM for identical electrical performance in an SOIC package. For through-hole requirements, MIC4424ZN offers equivalent functionality in a PDIP-8 package. Verify pinout compatibility and thermal dissipation requirements when cross-referencing these alternatives.