piclist-bounces@mit.edu wrote:
>> FWIW, we use these (the HIP4081) in one of our products driving a
>> bridge of NTP75N06.
> 
> Thanks for the feedback! Any specific pitfalls to watch for?

IIRC the appnote AN9405 is pretty thorough, and didn't run into any obvious issues. just the two bootstrap caps using MLCC and a BAW56 dual diode. electrolytic + MLCC bypass on the supply. The high/low inputs have a 10k pulldown to ground just in case the microcontroller's outputs happen to be floating, and the disable pin is biased via a resistor network (also just in case). Oh, and small gate resistors in series.

This product has volumes ~5K a year, been in production for several years. Field population is measured in tens of thousands by now. Out of the field returns we've had, no failures were ever directly attributed to the bridge driver failing. The one exception is when we've had water/condensation puddling on the chip itself. But I guess you can't fault the chip too much for that particular failure mode...we solved that first with silicone over the chip and two years ago went to a fully potted design.

and thats all I know.

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