MAX628ESA+T

Overview

The MAX628ESA+T is a low-side gate driver manufactured by Analog Devices Inc. (Maxim Integrated). It features two independent channels designed to drive N-channel and P-channel MOSFETs. The device operates within a supply voltage range of 4.5V to 18V. It supports both inverting and non-inverting input logic levels, with specified thresholds of 0.8V for VIL and 2V for VIH. Typical switching performance includes rise and fall times of 25ns and 20ns, respectively. The component is housed in an 8-pin SOIC package and is rated for operation between -40°C and +85°C.

Feature Summary

• Dual independent channel configuration for simultaneous control of multiple power switches
• Supports both N-channel and P-channel MOSFET gate driving requirements
• Compatible with standard logic families through defined input threshold voltages
• Optimized switching speed for efficient power stage transitions

Applications

• Low-side switching in DC-DC converter topologies
• Motor control circuits requiring independent gate drive signals
• Power management systems utilizing external MOSFETs
• Industrial equipment power stages

Procurement Notes

Verify the exact suffix against official Analog Devices documentation to confirm tape-and-reel packaging specifications. Ensure the part number matches the specific temperature grade and RoHS compliance status required for your design. Cross-reference the manufacturer's latest datasheet to confirm availability and any potential obsolescence notices prior to finalizing procurement plans.

Selection Notes

Select this component when dual low-side drive capability is required for N-type or P-type MOSFETs. Evaluate the 4.5V to 18V operating range against your system's power supply rails. Consider the 25ns/20ns switching speeds for high-frequency applications. Confirm that the SOIC-8 footprint aligns with your PCB layout constraints and thermal management strategy.

Part Context

This part belongs to the Maxim Integrated family of gate drivers, specifically designed for power management applications. It serves as a bridge between low-power control logic and high-current power switches. The MAX628 provides a compact solution for driving external transistors in space-constrained designs, offering independent control paths for enhanced flexibility in circuit architecture.

Replacement Considerations

Consult Analog Devices official substitution lists for verified alternatives. Generic equivalents may differ in switching speed, current drive capability, or input threshold characteristics. Verify pin compatibility and electrical parameters before replacing.