VBAT=12V
PVDD=35V(DCDC boost)
output:1kHz/0.1W/4ohm
When speaker shorts to 12V, VBAT begins to rise, once it reaches 35V, the voltage of VBAT and PVDD will be raised together. After 165ms, the OUT_xP no outputs and the VBAT and PVDD voltages drop.
How to get the VBAT and PVDD to boost?