DRV8873: PWM control in the Phase and Enable Mode

Hey Hirano-san,

Thank you for your question. This method is possible and is called the voltage control method. 
The following video explains the concept in more detail (starting at 6:00).

https://training.ti.com/ti-precision-labs-motor-drivers-integrated-stepper-driver-control-interfaces

Best,

Akshay

Hi,

Kazuhiko Hirano said:

My customer would like to know whether PWM control is possible even if the control mode is the Phase and Enable mode.
If PWM signal is input to the EN/IN1 pin and the direction of rotation signal is input to the PH/IN2 pin, my customer thinks that the PWM control can be achieved. Is their understanding correct?

They are absolutely correct. In fact, for simple speed control, such as fan or pump, PH/EN is better than PWM mode with less current loss and simple interface to an MCU.

Brian