Other Parts Discussed in Thread: BQ25703A
Hello,
My team and I have made a custom board using the MCT8316ZT, with power being supplied by an 8A max current LiPo through a TI bq25703A (limited to 4A output through software). There were no issues with the board until I tried to drive a motor, though the driver was powered on the entire time (nSleep and DRVOFF were NOT engaged) and the motor was connected. Once I tried running the motor (after I had tested functionality of other board components) the motor driver died, taking the MCU with it so I couldn't check the status of the nFAULT line. After testing on a second board (powered through a bench supply with 1A current limit) the VM voltage rose to 32V. When designing the board we borrowed heavily from the EVM circuit (schematic is nearly identical, we just powered the hall sensors from a different 3V3 regulator instead of the MCT buck regulator). I was wondering if you had any insights to what may have been the issue.
Thanks in advance for the help!
Best,
Grant
