Part Number: DRV8881P
So, we have a board that uses a bank of DRV8881Ps to drive a number of motors without issue. Now, we are looking to reuse the same board to drive some resistive patch heaters (with pwm from our controller).
However, according to testing performed when we first brought up the boards, it looks like there are some issues when we try to drive a purely resistive load. It seems to want to engage current-limiting mechanisms or something along those line despite never actually reaching overcurrent.
So, we can't find any specification in the datasheet which indicates a failure or limiting mode at high di/dt. Is that a hidden spec? If so, is there any hope for reusing this part to drive our heaters, or do we move on?
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