Hi all,
Could you please help me answering following support request from our customer:
“While making test protocol, calculating limits for measurements, and doing also some preliminary measurements, I discovered that some parameters are not completely defined into the datasheet of the DRV8837.
Therefore, I kindly ask for your support.
I need to know values for the overshoot and undershoot for the bridge output, as timing and amplitude.
The same information is needed for the input.
Do you have please scope waveforms for the inputs and the outputs, while this H-Bridge is driving a DC brush motor?
One more inquiry to add: what is the voltage on the output pins in the situation when the PWM enable signals switched to low?
There is table 1 in the datasheet, but I measured the outputs at about 1.5V in the first 2 combinations, and I have no explanation for this.
The VM=5V in our application.”
Many thanks in advance.
Regards,
Brian