Part Number: TPA3255
I have a new proto pcb that has a TPA3255 configured in the BTL+2 SE mode. It seems to come up and work. I'm only loading the BTL channel, it can deliver 130 Watts into an 8 ohm load. When I load it with a 4 ohm load, it trips the FAULT line at about 60 Watts. It doesn't seem hot enough to be a thermal issue.
One other thing, when it is turned on, the FAULT line goes high (3.3V) but the CLIP_OTW line goes high for just a quick second, then goes low. This does not seem normal to me.
I'm not using the D channel and did not insert any of the output components. I grounded input D.
The supply I'm using powers the EVM board perfectly.
Any ideas?