DRV8711DCPR集成电路（IC）的电机驱动器控制器规格书PDF中文资料

DRV8711DCPR属于集成电路（IC）的电机驱动器控制器。由德州仪器制造生产的DRV8711DCPR电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。

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).