TPA3116D2: Appropriate ESD standoff/breakdown ratings for TPA3116D2 output?

Hello Ram,

The ESD ratings for this device are in the datasheet in section 6.2.  Every pin had been tested to these ratings to the discharge model described in this section.  The holdoff voltage does depend of the rate of charge and discharge. 

Hello Gregg,

Thanks so much for responding. I should have clarified I have indeed looked at the ESD ratings on the datasheet. So let me try to get a bit more specific here - and my question will of course reveal an incomplete understanding of ESD matters. We are testing this against a IEC 61000-4-2-shaped pulse at 23kV air discharge directed at the speaker frame. From this piece of information and the information in the datasheet I am not able to determine what the holdoff voltage should be. (Or maybe I should say "reverse stand-off voltage"?) How does one determine that? I thought it would be a function of the maximum excursion of the output pins of the TPA3116 at a supply voltage of 24V, and that the charge and discharge rate from the standard would determine the Peak Amp rating of the TVS device.

If there is a ESD protection design guide from TI you can refer me to that.

Thanks again.

Best - Ram

Ram,

Thanks for the clarification.  You have moved beyond my comfort zone on ESD ratings.  I searched www.ti.com and found this document https://www.ti.com/lit/an/ssya010a/ssya010a.pdf. It might not be very helpful, but there are some links in the bibliography that may be helpful.  I will also contact our design team and find the maximum sustained voltage is allowed on the input pins of the amplifier.

Thanks for the link Gregg, and for offering to contact the design team. I'll look up the biblio.