TPA3255: Using TPA3255 to drive a transformer in BTL and PBTL config

Tanmay Sutaria

Part Number: TPA3255

Hello!

Hope this find you well amid the pandemic.

We intend to use the TPA3255 Class-D amp for an isolated signal generation application and hence would like to use the device in BTL or PBTL mode with a transformer in the output.

I happened to read a post on the Support Forum in 2017 where an app note 'on some testing we did with transformers for audio applications' was mentioned.

It would be great if someone can share the app note or other related information on driving the transformer, transformer design, precautions etc.

We already have 2 TPA3255 EVMs available and we can build a transformer in a day or so to start testing almost immediately,

Thank & Best regards,

Tanmay Sutaria.

over 4 years ago

0 Robert Clifton56 over 4 years ago

TI__Mastermind 27590 points

Hi Tanmay,

Let me take a look to see if I can find it. It's an incomplete app note hence why it's never been released.

Best Regards,

Robert Clifton

0 Robert Clifton56 over 4 years ago in reply to Robert Clifton56

TI__Mastermind 27590 points

Hi Tanmay,

I was able to find it. I'll send it to your email shortly!

If you don't receive it within the next hour, let me know.

Best Regards,

Robert Clifton

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TPA3255: Using TPA3255 to drive a transformer in BTL and PBTL config