Overview
The DRV8711DCPR, manufactured by Texas Instruments, is a sophisticated stepper motor controller designed to drive bipolar stepper motors or two brushed DC motors. This device integrates a 1/256-step microstepping indexer, enabling precise and smooth motor control. It operates within an 8-V to 52-V supply voltage range and is packaged in a thermally enhanced 38-pin HTSSOP package with a thermal pad, ensuring efficient heat dissipation and compliance with RoHS and Pb-free standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 8 - 52 | V |
| Microstepping Capability | Full step to 1/256-step | |
| Output Current | Scalable | |
| Package Type | 38-pin HTSSOP with thermal pad | |
| Operating Ambient Temperature | -40 to 85 | °C |
| 5-V Regulator Load Current | 0 - 10 | mA |
| Junction-to-Ambient Thermal Resistance | 32.7 | °C/W |
Key Features
- Pulse width modulation (PWM) microstepping motor driver with built-in 1/256-step microstepping indexer.
- Drives external N-channel MOSFETs.
- Optional STEP/DIR pins and PWM control interface for DC motors.
- Flexible decay modes, including automatic mixed decay mode.
- Stall detection with optional back-EMF output.
- Highly configurable SPI serial interface for programming device operation.
- Internal reference and torque DAC.
- Protection and diagnostic features: overcurrent protection (OCP), overtemperature shutdown (OTS), undervoltage lockout (UVLO), and individual fault condition indication bits.
- Fault condition indication pin.
Applications
- Office Automation Machines
- Factory Automation
- Textile Machines
- Robotics
Q & A
- What is the operating supply voltage range of the DRV8711DCPR?
The DRV8711DCPR operates within an 8-V to 52-V supply voltage range.
- What is the microstepping capability of the DRV8711DCPR?
The device supports microstepping from full step to 1/256-step.
- What type of package does the DRV8711DCPR come in?
The DRV8711DCPR is packaged in a 38-pin HTSSOP package with a thermal pad.
- Does the DRV8711DCPR have built-in protection features?
Yes, it includes overcurrent protection (OCP), overtemperature shutdown (OTS), undervoltage lockout (UVLO), and individual fault condition indication bits.
- How does the DRV8711DCPR handle motor stall detection?
Motor stall can be detected with an optional back-EMF output.
- What interface options are available for controlling the DRV8711DCPR?
The device supports STEP/DIR pins, PWM control interface, and a highly configurable SPI serial interface.
- What are the thermal characteristics of the DRV8711DCPR package?
The package has a junction-to-ambient thermal resistance of 32.7 °C/W.
- Is the DRV8711DCPR RoHS compliant?
Yes, the DRV8711DCPR is RoHS compliant and Pb-free.
- What is the purpose of the 5-V regulator in the DRV8711DCPR?
The 5-V regulator is capable of supporting a 10-mA load.
- Can the DRV8711DCPR drive brushed DC motors?
Yes, the DRV8711DCPR can drive two brushed DC motors in addition to bipolar stepper motors.
