DRV8711DCPR

Overview

The DRV8711DCPR is a stepper motor controller from Texas Instruments designed to drive bipolar stepper motors or two brushed DC motors using external N-channel MOSFETs. It features an integrated microstepping indexer supporting resolutions from full step to 1/256 step. The device operates on a supply voltage range of 8V to 52V and includes adaptive blanking times with various current decay modes, including automatic mixed decay, for smooth motion control. It offers programmable output current, stall detection via optional back-EMF output, and comprehensive protection mechanisms such as over-current protection, over-temperature shutdown, and under-voltage lockout.

Feature Summary

• Integrated microstepping indexer supports resolutions from full step to 1/256 step
• Supports adaptive blanking times and multiple current decay modes, including automatic mixed decay
• Features programmable output current and stall detection via optional back-EMF output
• Includes SPI serial interface for configuration and fault reporting

Applications

• Office automation machines
• Factory automation systems
• Textile machinery
• Robotics applications

Procurement Notes

Verify the specific package variant (HTSSOP-38) and ensure compatibility with external N-channel MOSFET selection for the target motor current requirements. Confirm that the application environment stays within the specified operating temperature range of -40°C to +85°C. Check for moisture sensitivity handling requirements during assembly. Ensure the design accommodates the thermal performance needs of the PowerPAD™ package for adequate heat dissipation in the intended enclosure.

Selection Notes

Select this component when high-resolution microstepping up to 1/256 is required for precise motion control. It is suitable for applications needing flexible current decay modes to optimize motor performance and reduce noise. The built-in stall detection and extensive diagnostic capabilities make it ideal for robust industrial and automation environments where reliability and fault monitoring are critical.

Part Context

The DRV8711 belongs to Texas Instruments' portfolio of stepper motor controllers and drivers. It serves as a pre-driver that interfaces with external power stages, allowing for scalable current solutions. This family focuses on providing high configurability through SPI, enabling designers to tailor motor drive characteristics to specific mechanical load requirements without complex analog circuitry.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.