TPA6203A1: Problems with overheating and failing

reg bondoio

Part Number: TPA6203A1

I am using the Device as per the data sheet. However we are getting the device over heating and failing. I do have a "heatsink via the base of the device soldered onto the pcb tracking, but not to anything else.It looks like thermal runaway. Can this happen?

If the soldering of the bottom of the ic is not soldered to Ground, can it fail? Is a 0.1uF on the Bi-pass pin 2 ok?

over 5 years ago

0 Ivan Salazar over 5 years ago

TI__Guru* 98315 points

Hi Reg,

Is the heating happening only during playback? Or is it happening also when there is no input signal?
Have you inspected the output of the amplifier with a scope? Perhaps the device is oscillating at high frequencies and causing the excessive heating

You can also share your design files so we can take a look. You can send an email to ivan.salazar@ti.com if you don't want to post it on the forum.

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

0 Ivan Salazar over 5 years ago in reply to Ivan Salazar

TI__Guru* 98315 points

Hi Reg,

Do you have further comments on the suggestions above?

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

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TPA6203A1: Problems with overheating and failing