1 Features
1• 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

2 Applications
• Office Automation Machines
• Factory Automation
• Textile Machines
• Robotics

3 Description
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).