Tool/software:
Hi,
I am referring to the TPA3112D1 datasheet, section 7.3.5 DC Detect, which states:
- A DC Detect Fault is issued when the output differential duty-cycle exceeds 14% (for example, +57%, -43%) for more than 420 ms at the same polarity.
Could you please help clarify the definition of “output differential duty-cycle”?
The datasheet provides waveform examples, but it is not explicitly labeled. I would like to confirm whether the following interpretation is correct:
-
It refers to the deviation of the average differential voltage across the load (OUTP−OUTN), determined by the duty-cycle difference of the OUTP and OUTN switching waveforms.
-
For example, if OUTP=57% and OUTN=43% continuously for more than 420 ms, a DC Detect Fault will be triggered.
Could you please confirm if this understanding is correct?
Thanks,
Conor
