MIC4428ZN

Overview

The MIC4428ZN is a dual low-side MOSFET gate driver manufactured by Microchip Technology. It features independent inverting and non-inverting outputs with peak currents of 1.5A source and sink. The device operates on a single supply voltage ranging from 4.5V to 18V. Logic thresholds are defined at 0.8V for VIL and 2.4V for VIH. Typical propagation delays include rise and fall times of 20ns and 29ns respectively. It is housed in an 8-pin PDIP package and supports operation across a temperature range of -40°C to +125°C.

Feature Summary

• Dual independent channel configuration providing both inverting and non-inverting output signals for flexible control logic integration.
• High current drive capability delivering 1.5A peak source and sink currents to ensure rapid switching of power MOSFETs.
• Robust operating temperature range extending from -40°C to +125°C, suitable for demanding industrial environments.

Applications

• Low-side switching applications for N-channel power MOSFETs
• Industrial motor control systems requiring precise gate drive timing
• Power supply circuits utilizing high-speed switching topologies

Procurement Notes

Verify the specific suffix 'ZN' indicates the PDIP package variant when sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the ordering quantity matches the tube packaging format associated with this specific part number. Cross-reference the datasheet revision date to guarantee compatibility with current design specifications.

Selection Notes

Select this component when dual isolated gate drives are required for low-side configurations. The 1.5A output current is sufficient for standard power MOSFETs. Consider the PDIP package constraints for PCB layout if through-hole mounting is mandatory. Verify that the input logic levels align with the 0.8V/2.4V thresholds provided by the controller.

Part Context

This part belongs to the MIC442x family of dual MOSFET drivers. It shares core electrical characteristics with surface mount variants like the MIC4428YM. The primary distinction lies in the packaging technology, offering a through-hole solution for legacy or specific mechanical assembly requirements while maintaining identical performance metrics.

Replacement Considerations

The MIC4428YM serves as a direct functional equivalent in a surface-mount SOIC package. Verify pinout compatibility before substitution. Other family members such as the MIC4426 and MIC4427 offer similar drive capabilities but may differ in specific delay parameters or package options.

FAQ

What is the maximum operating supply voltage?

The device supports a supply voltage range up to 18V.

Does the MIC4428ZN provide both inverting and non-inverting outputs?

Yes, it includes one inverting and one non-inverting channel.