TAS5630B: no output

hi cong

please refer below table, it might help u debug what error might happen.

tks

jesse

SD=0V

OTW1=9V

OTW2=9V

VDD=11.2V

Load = 2Ω or open

It looks like no OLP or UVP,but the status shows OLP or UVP. 

hi cong

you can take a try disconnect the outa and outb, c, d with LC.

let us see whether you can measure the pwm output at the outa and outb, c, d.

tks

jesse

I disconnect outB/C/D，outA is 0v.

hi cong

no pwm be outputted.

it might because the chip even hasn't start to work.

is that possible the chip broken or not?

do you have evm at hand?

maybe you can take it as a reference that might be help for debug.

tks

jesse

OK,I'll check the chip.