TPA3110D2: PLIMIT function

Takao Yamamoto

Genius 4135 points

Other Parts Discussed in Thread: TPA3110D2

Dear all,

Where does PLIMIT monitor to limit voltage?

Does this only monitor output pin?

■background of question

I wonder if I should set PLIMIT to protect from 'the reverse voltage from double coiled speaker' and 'the noise from itself'.

Best regards,

0 Shawn Zheng over 9 years ago

Hi Yamamoto-san,

I'm looking into it and will reply you later. Thanks for your patience.

0 Shawn Zheng over 9 years ago

Yamamoto-san,

PLIMIT controls PVCC rail in TPA3110D2, but not the output power. The following picture shows how PLIMIT works.

And also it can’t help to mitigate the output overshoot which is caused by the external circuits.

0 Shawn Zheng over 9 years ago in reply to Shawn Zheng

Yamamoto-san,

Please see the below picture.

Audio forum