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?

 

Thanks.


A: Re: TAS5708 into 4-ohm BTL

Hello,

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.