MAX22204ATU+

Overview

The MAX22204ATU+ is a dual H-bridge motor driver designed for stepper and brushed DC motors. It operates on a supply voltage range of 4.5V to 65V with a maximum output current of 3.8A per bridge. The device features integrated current sensing, programmable decay modes, and fault protection including overcurrent and thermal shutdown. Packaged in a 38-TQFN (5x7mm) surface-mount format, it supports PWM input control and includes an internal charge pump for high-side gate driving.

Feature Summary

• Dual H-bridge architecture enabling independent control of two brushed DC motors or one bipolar stepper motor
• Integrated non-dissipative current sensing with programmable trip levels and multiple decay mode support
• Comprehensive protection mechanisms including overcurrent protection, thermal shutdown, and undervoltage lockout

Applications

• Brushed DC motor control systems
• Bipolar stepper motor drives
• Industrial automation actuators
• Home appliance motor management

Procurement Notes

Verify the exact suffix against official Analog Devices documentation to confirm package type and tape/reel specifications. Ensure the component matches the required operating temperature range and voltage ratings for the target application environment before integration.

Selection Notes

Select this component when a compact solution for dual motor control is required within a 65V system. Consider the thermal performance constraints associated with the 3.8A peak current rating and ensure adequate PCB copper area for heat dissipation given the TQFN package footprint.

Part Context

This part belongs to the MAX2220x series of intelligent motor drivers from Maxim Integrated, now part of Analog Devices. The series focuses on integrating power stages with control logic to simplify motor drive designs. The ATU+ variant specifically denotes the automotive-grade or extended temperature qualified version in the TQFN package.

Replacement Considerations

Direct substitutes include other dual H-bridge drivers from the same family such as the MAX22203ATU+. Verify pin compatibility and current ratings when cross-referencing with competitor products like those from Texas Instruments or Infineon.