MAX22203AUU+T

Overview

The MAX22203AUU+T is a dual H-bridge motor driver designed for stepper and brushed DC motors. It operates with a supply voltage range of 4.5V to 65V and delivers up to 3.8A output current per bridge. The device integrates current drive regulation (CDR) with internal current sensing, eliminating the need for external shunt resistors. It supports PWM input interfaces and offers selectable decay modes including slow, mixed, and fast decay. The component is housed in a 38-pin TQFN package and functions within an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates dual H-bridges with built-in current drive regulation and internal current sensing
• Supports multiple decay modes including slow, mixed, and fast for precise motor control
• Operates on wide supply voltages up to 65V with high efficiency low-resistance switches

Applications

• Brushed DC motor control systems
• Stepper motor driving applications
• Industrial automation actuators

Procurement Notes

Verify the specific suffix AUU against official Analog Devices documentation to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint requirements for the 38-TQFN configuration. Cross-reference thermal management needs with the datasheet's power dissipation guidelines. Confirm RoHS compliance status through the manufacturer's certification documents prior to integration.

Selection Notes

Select this component when designing systems requiring independent control of two brushed DC motors or a single bipolar stepper motor. It is suitable for applications needing integrated current limiting without external sense resistors. Consider the 65V rating for higher voltage bus systems. Evaluate thermal performance based on expected RMS currents and PCB copper area availability for heat dissipation.

Part Context

This part belongs to the Maxim Integrated motor driver family, specifically engineered for compact motion control solutions. It replaces discrete MOSFET H-bridge designs by integrating gate drivers, protection circuits, and control logic into a single chip. The series emphasizes ease of implementation and reduced bill of materials for embedded motor control projects.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Generic cross-references may not match the integrated CDR features or pinout configurations.