Unipolar Stepper Motor Driver using a Bipolar Stepper Motor Controller Reference Design


Design files


TIDA-00872 demonstrates how to reconfigure the DRV8711 bipolar stepper motor gate driver as a unipolar stepper motor gate driver. The PCB connects to the MSP430G2 LaunchPad to allow quick evaluation and tuning. The PCB operates from 15V up to 40V, with full scale current of 5A.

  • 15 to 40-V operating supply voltage range with up to 4-A full-scale continuous motor current
  • Up to 1/256 microstep modes depending on motor speed
  • BOOST-DRV8711 GUI for driver input control and motor tuning
  • Onboard USB communication for easy connectivity with external controller
  • Plugs into MSP430G2 LaunchPad
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUBB3.PDF (2230 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDRJV2.ZIP (9291 K)

Files used for 3D models or 2D drawings of IC components

TIDCBO9.ZIP (1222 K)

Design file that contains information on physical board layer of design PCB

TIDRJV1.PDF (1143 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Stepper motor drivers

DRV871152-V, bipolar stepper motor gate driver with 1/256 microstepping & stall detect

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430G255316 MHz MCU with 16KB Flash, 512B SRAM, comparator, UART/SPI/I2C, timer

Data sheet: PDF
N-channel MOSFETs

CSD19534Q5A100-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 15.1 mOhm

Data sheet: PDF | HTML

Technical documentation

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* Design guide Unipolar Stepper Motor Driver Using a Bipolar Stepper Controller Design Guide Dec. 18, 2015

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