Need clarification on INNL and INPL grounding on TPA3116 in PBTL

MikeH

Can someone please clarify what type of ground connection (AC or DC) is required on the TPS3116 for a PBTL configuration? I found the following comment confusing:

.....after seeing the diagram in the following application diagram in the datasheet (Fig 27, P14) which shows INNL and INPL tied directly to ground.

over 9 years ago

0 Gregg Scott over 9 years ago

TI__Mastermind 45085 points

Hi Mike,

Follow the schematic. It is a DC connection to ground. By pulling the inputs INPL and INNL to ground trigger the PBTL function.

In the other thread that you site, the amplifier is not in PBTL mode.

0 MikeH over 9 years ago in reply to Gregg Scott

Guru 15580 points

Thanks Greg. I actually mis-read the post and thought they were talking about the TPA3130.

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Need clarification on INNL and INPL grounding on TPA3116 in PBTL