DRV8824RHDT datasheet by Texas Instruments

DRV8824RHDT Frequently Asked Questions (FAQs)

• What is the maximum current rating of the DRV8824RHDT?
  The maximum current rating of the DRV8824RHDT is 2.5A per coil, but it can be limited by the thermal performance of the PCB and the motor.
• How do I configure the microstepping mode on the DRV8824RHDT?
  The microstepping mode can be configured by setting the M0, M1, and M2 pins to select one of 32 microsteps per full step. The specific configuration is shown in the datasheet, Table 7-5.
• What is the purpose of the TRQ pin on the DRV8824RHDT?
  The TRQ pin is a torque regulation pin that allows the user to adjust the current limit of the motor. It can be used to optimize the motor performance and reduce noise.
• How do I troubleshoot the DRV8824RHDT if the motor is not spinning?
  Check the enable pin (EN) to ensure it is high, verify the direction pin (DIR) is set correctly, and check the step pin (STEP) is being driven correctly. Also, ensure the motor is properly connected and the current limit is set correctly.
• Can I use the DRV8824RHDT with a bipolar stepper motor?
  Yes, the DRV8824RHDT can be used with a bipolar stepper motor. The chip supports both unipolar and bipolar stepper motors.