MAX628CSA

Overview

The MAX628CSA is a low-side gate driver manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface-mount package. 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 low and 2V for high. The driver provides fast switching performance with typical rise and fall times of 25ns and 20ns, respectively. It is rated for operation across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Dual independent channel configuration for simultaneous control of multiple power switches
• Compatible with standard N-channel and P-channel MOSFET technologies
• Flexible logic interface supporting both inverting and non-inverting signal inputs
• Optimized switching speed for efficient power stage management

Applications

• Low-side switching in DC-DC converter topologies
• Motor control systems requiring independent phase driving
• Power supply circuits utilizing external MOSFETs
• Industrial automation equipment power stages

Procurement Notes

Verify the exact suffix against official manufacturer documentation to confirm package type and temperature grade. Ensure the component matches the specific SOIC-8 footprint requirements for your PCB layout. Cross-reference the datasheet revision date to confirm compatibility with your design specifications. Confirm that the operating voltage range aligns with your system's power rail constraints before integration.

Selection Notes

Select this component when dual low-side driving capability is required for discrete MOSFETs. Consider the 4.5V minimum supply voltage to ensure proper operation with your control logic. Evaluate the 25ns/20ns switching speeds against your maximum frequency requirements. Verify that the 8-SOIC package fits within your available board space and thermal management strategy.

Part Context

This part belongs to Maxim Integrated's family of gate drivers, designed to bridge control logic and power devices. The MAX628 specifically addresses applications needing isolated or independent control of two low-side switches. It serves as a critical interface in power electronics, enabling precise timing and efficient energy transfer in various conversion and motor drive architectures.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Check pinout compatibility and electrical parameter overlaps before swapping. Ensure any substitute maintains the same SOIC-8 package dimensions and thermal characteristics.