Other Parts Discussed in Thread: DRV8462,
Good day. I have two questions regarding the DRV8462 device. I have been testing the DRV8462EVM with a NEMA23 2A stepper motor.
The DRV8462 works very well with the motor, I am really impressed with this driver.
When power is removed, when the stepper is turned, the D4 LED comes on. Of course, this would be due to EMF created by the stepper motor turning.
Would this have a negative impact on the driver or any other external electronics on the PCB being designed? ie if the user were to turn the motor in the system it's being used, while power is removed,
could this cause any driver or external component damage? If so, is there any recommended protection?
Also, is external reverse EMF diodes or TVS or similar necessary as protection on the motors for reverse EMF during normal option (ie when power supplied and motors are running?) Or does the DRV8462 have sufficient
protection for reverse EMF up to the max current rating of the driver? Looking forward to you feedback. Thank you very much!