DRV8846 Dual H-Bridge Stepper Motor Driver Evaluation Module


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The DRV8846 is a highly integrated stepper motor controller and driver for cameras, printers, projectors, and other automated equipment applications.This device has been optimized to drive a single bipolar stepper with up to 1/32 microstepping with on-chip indexers.

The DRV8846EVM is a platform revolving around the DRV8846. The EVM incorporates a MSP430 microcontroller and an USB interface chip. The USB chip allows for serial communications from a PC computer where a Windows® application is used to schedule serial commands. These commands can be used to control each of the device’s signals, and drive the stepper motor by issuing the step commands at the desired rate. The microcontroller firmware operates using internal index mode.

  • 4 to 18V operation voltage
  • 1A RMS / 1.4A full-scale per H-bridge
  • STEP/DIR interface with up to 1/32 u-step indexer on-chip
  • Flexible current decay modes
  • Configurable PWM off-time
  • On-the-fly adjustable output current / torque scaling
  • Complete on-chip protection: over-current, over-temperature, under-voltage and shoot-through
  • User-friendly GUI via MSP430 and USB interface

  • DRV8846 Evaluation Board
  • USB Cable

Stepper motor drivers
DRV8846 18-V, 1.4-A bipolar stepper motor driver with 1/32 microstepping and smart tune adaptive decay
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Evaluation board

DRV8846EVM — DRV8846 Dual H-Bridge Stepper Motor Driver Evaluation Module

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Support software

SLLC446 — DRV8846EVM Software

Supported products & hardware

SLLC446 DRV8846EVM Software

Latest version
Release date: 11 Dec 2014
download DRV8846EVM Software (zip)  — 2296 K

Hardware development
Evaluation board
DRV8846EVM DRV8846 Dual H-Bridge Stepper Motor Driver Evaluation Module

Release Infomation

The design resource accessed as www.ti.com/lit/zip/sllc446 or www.ti.com/lit/xx/sllc446a/sllc446a.zip has been migrated to a new user experience at www.ti.com/tool/download/SLLC446. Please update any bookmarks accordingly.
TI's Standard Terms and Conditions for Evaluation Items apply.

Design files

Technical documentation

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Type Title Date
* EVM User's guide DRV8846 Evaluation Module User Guide (Rev. A) 18 Mar 2015
Certificate DRV8846EVM EU Declaration of Conformity (DoC) 02 Jan 2019
Technical article Spin your stepper automatically 03 Mar 2016

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