Dear TI-Team and friends,
since some time we use the DRV8308 at an 18 Volt BLDC motor. Sometimes (less then 1% of your PCBs) we see burning parts and pins on the DRV. Please see attached picture.
What could be the problem here and how could we try to avoid this? On our MOSFET we use TVS diodes and power supply will not be higher then 21 Volt. The Predrive Current is set to 100 mA.
Thank you for help.