I am trying to figure out how to control motor using PWM on 24v13 driver. First thing that puzzles me is that why DRV8701E (PH/EN) is used in the product instead of DRV8701P designed specifically for PWM.
As a result it seems that the motor is constantly switched between full voltage applied and short-circuited, or (even worse) with full voltage alternating directions. Basically, MOSFETS are forced to take on the full back EMF they just induced in the windings in the previous part of duty period.
All this seems awfully wasteful and really hard on both motors and MOSFETs. Or am I missing something? Do I need to also use SLP input to achieve no power loss Drive/Coast operation?