MIC4427ZN

Overview

The MIC4427ZN is a dual low-side MOSFET gate driver manufactured by Microchip Technology in an 8-pin PDIP package. It features independent non-inverting channels with a peak output current of 1.5 A. The device operates within a supply voltage range of 4.5 V to 18 V and supports propagation delays as low as 20 ns rise time and 29 ns fall time. It functions across commercial temperatures from 0°C to +70°C, providing robust switching performance for power management applications.

Feature Summary

• Dual independent low-side driver configuration
• Non-inverting logic input compatibility
• High peak output current capability
• Fast switching speed characteristics

Applications

• DC-DC converter circuits
• Motor control systems
• Power supply gating

Procurement Notes

Verify the specific suffix 'ZN' corresponds to the 8-pin PDIP tube packaging when sourcing. Confirm the manufacturer is Microchip Technology, as prior ownership was Micrel. Ensure the order quantity aligns with standard tube packing quantities. Check for RoHS compliance status on the latest datasheet revision before finalizing procurement orders.

Selection Notes

Select this component for applications requiring dual low-side driving without high-side complexity. The PDIP package suits through-hole prototyping or manufacturing environments. Verify that the 1.5 A peak current meets the gate charge requirements of the target MOSFETs. Ensure the operating temperature range covers the intended environmental conditions.

Part Context

This part belongs to the MIC4427 series of high-speed MOSFET drivers. It serves as a legacy product originally developed by Micrel Semiconductor before acquisition by Microchip Technology. The series provides cost-effective solutions for basic power switching needs where isolated or high-side driving is not required.

Replacement Considerations

Check for MIC4427YM or MIC4427ZM equivalents if surface mount packaging is preferred. Verify pinout compatibility before substituting with other dual low-side drivers.