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DRV8880: motor driver chip testing

Muni Pavan Kumar Reddy Kona
Prodigy 225 points
Part Number: DRV8880

Hello,

We have a PCB with DRV8880RHR chip. To verify the board, Every time we need to connect stepper motors. Is there any method to test the functionality of DRV8880RHR  without connecting the  stepper motors..

Please let me know.

 

  • 0
    TI__Guru 54645 points

    Hello!

    Thank you for your post.  

    The device closes the loop around current in the load, so you will need some sort of RL load to model the motor.  This will close the current regulation loop and ensure the device is working as intended. 

    To observe the current changing, you can check the voltage on the sense resistors or use a current probe.