LM1875: Lm1857

Yuval Abadi

Part Number: LM1875

Hello

Could I connect 2 lm1875 to get 40W-50w amplifier

Which topology recommended

0 Xiaolin Qin over 5 years ago

do you want to 2 LM1875 to drive 2 stereo speaker, each L/R channel output 20W, total 2x20W? it looks ok.

0 Yuval Abadi over 5 years ago in reply to Xiaolin Qin

hi Xiaolin
I try to use 4 LM1875 to drive 2 stereo speaker 40Wx2

Thanks

Yuval

0 Yuval Abadi over 5 years ago in reply to Xiaolin Qin

Hello Xiaolin

I plan to use 4 LM1875 to drive 2 speakers

each pair will be one channel

I so around 2 major typologies bridge and parallel.

I would like to get recommendation and how do do it use TI ic in proper way.

Thanks

Yuval

0 Andy Liu (BMS) over 5 years ago in reply to Yuval Abadi

Hi Yuval,

See the following app note, which I think might be helpful to you.

Andy

Audio forum