LM48511: LM48511 output lagging and suddenly stopped playing speaker

Mahammadirfan Saiyed

Part Number: LM48511

Hi,

I have designed LM48511 amplifier board as per the data sheet and UVM available. After pcb manufacturing i have tried to give input and play the song.

I have 3W speaker , it starts very slowly in sound at the start and suddenly stops.

Now even after changing the speaker it is not available to play anything.

So, please suggest me what to do ? Is amplifier IC got damaged ? If I plug 5W amplifier into this is it able to play anything from the speaker?

Thanks,

Irfan

over 6 years ago

0 Ivan Salazar over 6 years ago

TI__Guru** 109605 points

Hi Irfan,

Have you tried to replace the IC to verify if the device has been damaged?
You can share your schematic and layout with us so we can take a look at it. If don't want to post it on the forum you can send it directly to: ivan.salazar@ti.com

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

0 Mahammadirfan Saiyed over 6 years ago in reply to Ivan Salazar

Intellectual 470 points

Hi Ivan,

Please find the mail at the given mail id and give me your valuable feedback as soon as possible. Parallely if possible i will change the pmic but as per yesterday exercise it plays a sound but very low that we can't here it properly.

thanks
Irfan
Senior Hardware Engineer

0 Ivan Salazar over 6 years ago in reply to Mahammadirfan Saiyed

TI__Guru** 109605 points

Irfan,

I have replied to you via email.

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

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LM48511: LM48511 output lagging and suddenly stopped playing speaker