DRV8711 Datasheet, PDF (1/34 Pages) Texas Instruments – STEPPER MOTOR CONTROLLER IC

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STEPPER MOTOR CONTROLLER IC
SLVSC40 – JUNE 2013
FEATURES
1
•2 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 cConfigurable Va 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
APPLICATIONS
• Office Automation Machines
• Factory Automation
• Textile Machines
• Robotics
DESCRIPTION
The DRV8711 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 via a SPI serial interface.
Internal shutdown functions are provided for over current protection, short circuit protection, under voltage
lockout and overtemperature. Fault conditions are indicated via a FAULTn pin, and each fault condition is
reported via a dedicated bit through SPI.
The DRV8811 is packaged in a PowerPAD™ 38-pin HTSSOP package with thermal pad (Eco-friendly: RoHS
and no Sb/Br).
T_A
–40°C to 85°C
ORDERING INFORMATION⁽¹⁾
PACKAGE ⁽²⁾
ORDERABLE PART NUMBER
PowerPAD™ (HTSSOP) – PWP
Reel of 2000
Tube of 40
DRV8711DCPR
DRV8711DCP
TOP-SIDE MARKING
DRV8711
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated