Other Parts Discussed in Thread: TPA2017D2, TPA2012D2, , TPA2012D2EVM, TPS61253,
I shorted P and N of differential output for speaker each other for 1 or 2 seconds.
As a result, speaker output sound remained alive, however consumption current of 5V power supply is much larger than usual (approx 1A) @ 8ohm load x 2.
It doesn't return to normal condition anymore.
I guess that this phenomenon is hard to be recognized as a breakdown of the device, because the function (sound) isn't lost.
Do you have any idea for the same or similar phenomenon?
P. S. 1) Actually same phenomenon has occured on TPA2017D2.
P. S. 2) Static discharge to differential output causes the same phenomenon.
Best regards,
Atsushi HANAZAWA (Sharp Corporation)