AMIS30622C6227RG

Overview

The AMIS30622C6227RG is an automotive-grade microstepping stepper motor driver and controller from onsemi, housed in a 20-pin SOIC package. It integrates a position controller with I²C interface capabilities for precise motion control. The device supports bipolar output configurations with a maximum output current of 800 mA and operates within a supply voltage range of 6.5 V to 29 V. It features programmable peak current settings, automatic fast/slow decay mode selection, and internal flyback FETs. The component is qualified under AEC-Q100 standards, ensuring reliability for harsh environments, with a specified operating temperature range spanning from -40°C to +165°C.

Feature Summary

• Integrates a position controller and I²C interface for advanced motion management
• Supports microstepping resolutions including 1/2, 1/4, 1/8, and 1/16 steps
• Features automatic selection between fast and slow decay modes for reduced noise
• Includes fully integrated current detection and internal flyback protection

Applications

• Automotive seat adjustment systems
• HVAC actuator control
• Steering column positioning mechanisms
• Lumbar support adjustment actuators

Procurement Notes

Verify the specific suffix 'RG' indicates tape-and-reel packaging versus 'G' tube packaging when sourcing replacements. Confirm AEC-Q100 qualification status matches project requirements. Check for end-of-life notices or production change notifications that may affect long-term availability. Ensure the I²C address configuration aligns with the system bus architecture before integration.

Selection Notes

Select this component for applications requiring integrated position control rather than simple step/direction driving. The I²C interface reduces pin count compared to parallel interfaces suitable for complex multi-axis systems. Consider the 800 mA output limit for motor coil sizing. The wide operating temperature range supports direct integration into engine bay or exterior automotive modules without additional thermal management.

Part Context

This part belongs to the AMIS-3062x family of microstepping drivers designed for automotive mechatronics. It complements other variants like the AMIS30621 which utilizes LIN interface for remote connectivity. The series emphasizes high-resolution positioning and diagnostic feedback, distinguishing it from basic stepper drivers by embedding intelligence for closed-loop-like position tracking via the host controller.

Replacement Considerations

• AMIS30622C6227G (Tube packaging variant)

FAQ

What is the maximum microstepping resolution supported?

The device supports up to 1/16 microstepping resolution.

How does the device handle back-EMF from the motor coils?

It includes internal flyback FETs to manage energy recirculation from the motor coils.