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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
Hi Adam-san,
Thank you for your response.
Yes, TPA3221 was configured as PBTL mode and the outputs were configured as BTL mode, then the ground fault test was carried out.
Our customer also understand that it is differ from normal usage, but please tell me why the ground short cannot be detected.
In other words, please tell me how to detect the ground fault in PBTL mode.
Of course, this device worked normally before the ground fault test.
Best regards,
Kato
Hi Adam-san,
Thank you for the comment.
I cannot verify this symptom as I don't have TPA3221EVM, so could you please double-check whether this symptom is replicated by using the EVM ?
Best regards,
Kato
Kato-San,
I cannot test the EVM in an unsupported configuration.
Regards,
-Adam