Rick,
Looks like my text got removed from the previous post. The top plot is pin 7 of a passing board the bottom plot show the same pin once the DRV8840 was replaced with a different lot code. The motor is not attached during this measurement. The pulse width is definitely different between lot code with the same system (PCB, motor and load). I'd like to know what to expect from part to part so I can adjust the software to account for the full range of tolerances. The datasheet only lists rise and fall times but there appears to be more at play here. Can you help?
Thanks,
Mike