MAX4427ESA

Overview

The MAX4427ESA is a dual high-speed MOSFET gate driver manufactured by Analog Devices Inc. (Maxim Integrated). It features two independent non-inverting drivers housed in an 8-SOIC package. The device supports a supply voltage range of 4.5V to 18V and delivers a peak output current of 1.5A for both sourcing and sinking. Key electrical parameters include a typical rise/fall time of 20ns with a 1000pF load, delay times of 10ns and 25ns, and low power consumption of 1.8mA with a logic 1 input. It operates within a temperature range of -40°C to +85°C.

Feature Summary

• Provides dual independent low-side gate drive channels with non-inverting logic inputs.
• Delivers 1.5A peak output current capability for fast switching of N-channel and P-channel MOSFETs.
• Features TTL/CMOS compatible logic thresholds and latchup protection exceeding 500mA.

Applications

• High-speed switching applications requiring fast MOSFET turn-on and turn-off times.
• Power management circuits utilizing low-side driver configurations.
• Systems requiring isolated or buffered control signals for power stages.

Procurement Notes

Verify the specific suffix and RoHS compliance status when ordering, as legacy Maxim products may have varying environmental certifications. Confirm the exact package marking and datasheet revision against the manufacturer's official documentation to ensure compatibility with existing designs. Check for obsolescence notices or lifecycle changes directly from Analog Devices, as availability for this specific part number may be restricted.

Selection Notes

Select the MAX4427ESA when dual independent low-side driving is required with moderate current capabilities. Ensure the application load capacitance aligns with the specified 20ns rise/fall time performance. Verify that the system supply voltage remains within the 4.5V to 18V operating range. Consider thermal dissipation requirements based on the SOIC-8 package and expected switching frequency.

Part Context

This component belongs to the MAX4426/MAX4427/MAX4428 family of high-speed MOSFET drivers. It serves as a successor or alternative to older TSC series drivers, offering improved on-resistance and shorter delay times. The device is designed for applications demanding reliable gate drive performance in compact surface-mount packages.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.