Stereo TPA31xx with SpeakerGuard and 4 ohm load

Mahendrakumar Reddy Ippagunta

Other Parts Discussed in Thread: TPA3110D2, TPA3112D1

Which TPA31xx series is suitable for the application below?

1) 12-14V operation off car battery power

2) 4 ohm load

3) Stereo 2 channels

4) Speakerguard protection is mandatory.

5) Two products; one with 15W + 15W RMS and theother with minimum 20W + 20W RMS preferably 25W + 25W.

Any TPA31xx stereo versions available meeting above requirements or I need to go for PBTL mono and use two chips for stereo?

Also, how stable are these chips with 4 ohms load either in BTL or PBTL modes?

-Thanks

0 user5276421 over 13 years ago

Hi Mahendrajumar,

Here is my recommendation -

TPA3110D2 x1 (stereo)for the 15Wx2 application.

TPA3112D1 (mono) x2 for 25Wx2 application.

And yes, these are stable with 4R load.

reg,

Paul.

Audio forum