Hi,
Could you please provide the result for the ground fault test with the BTL and PBTL mode ?
In addition, TPA3221 was damaged if shorting OUT1_P to ground when testing the ground fault in the following configuration(the BTL configuration) using TPA3221EVM with the PBTL mode, so could you please tell me that reason why TPA3221 is damaged in this case ?
Best regards,
Kato