TPA3116D2: REF AUDIO CUTTING OUT on peaks

Hi Terry

  Sorry that not fully understand your question.

  Would you please share us some waveform, or test results. And let us know what is the problem you met? Thanks.

Part Number: TPA3116D2

Hello, I am new to this forum

         I see this has been a problem by the posts on the net, As with the others, when a signal is high the audio cuts and then resumes,

there is nothing wrong with the heat sinking, nor the 0 volt connections for D.C  power, I have tested one on the bench just the basics. I normally design our own but this one is a great little amp with a great price and sound, and would be ideal  if this can be sorted, I am not familiar with this IC so excuse my ignorance.

Looking at the schematic on here it appears to be governed by the limit with resistors  R11 AND R12  Mine is set to 75K and  47k respectively

by the manufacturer, I assume a protection circuit comes in to play, the amp is being run into 8 - 16 ohms with and adequate supply set at 19 volts.

Perhaps if you have any help myself and others would be grateful Thank you KLYNSTROM

Hi Terry

  Seems this is the same with your another Thread, how about we close 1 of them, and discuss with only 1 Thread. Thanks.

That would be fine, I hope you can do this for me please, I had to have an eye op and at present am struggling to see

Reply behalf of Terry, I am unable to give much information at the moment,  due to eye op, the amp is not being driven that hard, but it seems to detect peaks and just mutes for a few seconds then resumes working again, It is being used with a guitar, the signal is not squaring off so why it would mute is beyond me, I presume if not set by the two resistors mentioned earlier it will be dealt with within the chip, so I guess nothing can be done, but seems surprising for Texas to get it wrong, but there are several complaints about this fault on the net, but no resolve as yet, thank you for your reply, and look forward to a possible fix.

Thank you

Hi Terry

Terry Macdonald said:

I presume if not set by the two resistors mentioned earlier it will be dealt with within the chip, so I guess nothing can be done, but seems surprising for Texas to get it wrong, but there are several complaints about this fault on the net, but no resolve as yet,

We are talking about the resistors at Gain/SLV pin, right? Could you please share some links about the info that talking about? I want to see if this is the same problem with yours.