Dears,
We use TAS5630BPHDR to drive 2 speaker, during the using,some pcs occur damage.
we test the phenomenon is:
1. TAS5630B's four output PINS(OUT_A/B/C/D),one of them short to itself GND(GND_A/B/C/D).
2. PIN-15(/SD) assert to high.
3. PIN-19(READY) have no output.
PVDD is 48V, it is boost from 12V lead batteries.
every speaker is 8ohm/150W;
PWM frequency is 400KHZ;
the output mode is AD MODE.
Design ref below:
Pls help us how to debug ,thanks very much!!