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Q: TAS5708 into 4-ohm BTL
I want to use 4ohm speaker with PVCC at 12V, so I think it should be ok for us except the thermal will be higher. Could you kindly help me confirm it?
A: Re: TAS5708 into 4-ohm BTL
I tested this in the lab with Pvcc = 12 V and stereo 4R loads in BTL.
I ran it at 15W for 1.5 minutes with no change in output power or THD. I then ran it at 20W per channel for 15 mins without thermal shutdown and no runaway. The THD was at 13.5% for test, so as long as you stay under 10% THD, you're not thermally limited because of the low Pvcc.
Let me know if I can assist further.
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