TIDRV8461DDWR

Overview

The DRV8461DDWR is a highly integrated bipolar stepper motor driver capable of delivering up to 3A output current from a supply voltage between 4.5V and 65V. It features sophisticated current regulation through TI's Auto-torque technology and smart tune options, reducing audible noise and heat. The device provides both a standard STEP/DIR interface and an SPI interface for advanced configuration and diagnostics.

Why Choose This Part

The DRV8461 eliminates the need for external sense resistors by integrating current sensing, which simplifies PCB layout and reduces thermal management overhead. Its 2.5uA sleep current and standstill power saving mode make it ideal for energy-sensitive designs, while comprehensive protection features like OCP and UVLO ensure robust operation up to 65V.

Applications

Getting Started

Evaluate the driver using the DRV8461EVM evaluation module, which connects to a PC via a USB2ANY interface for SPI configuration. Use the TI GUI to tune the Auto-torque settings and decay modes for specific motor characteristics. Ensure the thermal pad is properly soldered to a large copper area on the PCB to manage heat at 3A loads.

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