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TPA3130 Output clipping

Guru 16770 points
Other Parts Discussed in Thread: TPA3130D2EVM

Hi

We tested TPA3130D2EVM,

Using EVM, we got unclipped Pout = 3.22W at PVCC=5.5V, R=4ohm.

So, Vrms=3.588 and Vpp=10.15V.

With the same configuration, we made prototype and tested it.

However, we noticed the output was clipped at Pout around 3W.

5.5V PVCC is measured at PVCC pin of the device, so there was no voltage drop between power supply and the device pin.

What do you think the matter?

BestRegards