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DRV8711
52-V, bipolar stepper motor gate driver with 1/256 microstepping & stall detect
Data sheet
DRV8711
- Pulse width modulation (PWM) microstepping motor driver
- Built-In 1/256-Step microstepping indexer
- Drives external N-Channel MOSFETs
- Optional STEP/DIR pins
- Optional PWM control interface for DC motors
- Flexible decay modes, including automatic mixed decay mode
- Stall detection with optional BEMF output
- Highly configurable SPI serial interface
- Internal reference and torque DAC
- 8-V to 52-V Operating supply voltage range
- Scalable output current
- Thermally enhanced surface-mount package
- 5-V Regulator capable of 10-mA load
- Protection and diagnostic features
- Overcurrent protection (OCP)
- Overtemperature shutdown (OTS)
- Undervoltage lockout (UVLO)
- Individual fault condition indication bits
- Fault condition indication pin
The DRV8711 device is a stepper motor controller that uses external N-channel MOSFETs to drive a bipolar stepper motor or two brushed DC motors. A microstepping indexer is integrated, which is capable of step modes from full step to 1/256-step.
An ultra-smooth motion profile can be achieved using adaptive blanking time and various current decay modes, including an auto-mixed decay mode. Motor stall is reported with an optional back-EMF output.
A simple step/direction or PWM interface allows easy interfacing to controller circuits. A SPI serial interface is used to program the device operation. Output current (torque), step mode, decay mode, and stall detection functions are all programmable through a SPI serial interface.
Internal shutdown functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature. Fault conditions are indicated through a FAULTn pin, and each fault condition is reported through a dedicated bit through SPI.
The DRV8711 is packaged in a PowerPAD™ 38-pin HTSSOP package with thermal pad (Eco-friendly: RoHS and no Sb/Br).
Technical documentation
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Evaluation board
BOOST-DRV8711 — Stepper Motor BoosterPack featuring DRV8711 and CSD88537ND
The BOOST-DRV8711 is 8-52V, 4.5A, bipolar stepper motor drive stage based on the DRV8711 Stepper Motor Pre-driver and CSD88537ND Dual N-Channel NexFETTM Power MOSFET. The module contains everything needed to drive many different kinds of bipolar stepper motors and can also be repurposed as a dual (...)
User guide: PDF
Evaluation board
DRV8711EVM — Evaluation Module for Stepper Motor Pre-Driver with On-Chip 1/256 Micro-Stepping Indexer
The DRV8711 is a stepper motor controller using external N-channel MOSFETs to drive a bipolar stepper motor or two brushed DC motors. A microstepping indexer is integrated, supporting up to 1/256 microstep. The DRV8711 is capable of providing ultra-smooth motion profile, and motor stall can be (...)
User guide: PDF
Reference designs
TIDA-00872 — Unipolar Stepper Motor Driver using a Bipolar Stepper Motor Controller Reference Design
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.
Reference designs
TIDA-00740 — Auto-Torque Implementation Reference Design
The TIDA-00740 is an 8-52V, 4.5A, bipolar stepper motor drive stage based on the DRV8711 Stepper Motor Pre-driver and CSD88537ND Dual N-Channel NexFET™ Power MOSFET. Firmware on an MSP430G2553 is used to automatically adjust the stepper motor current based on the Back-EMF generated by the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (DCP) | 38 | Ultra Librarian |
Ordering & quality
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