TAS5630 PVDD_x Internal Connections

Mike Tripoli

Hi,

Just to be clear, are the PVDD_x supply pins connected in any way? I want to use multiple power supplies to power each output section.

Thanks.

Mike Tripoli

over 15 years ago

0 Don Dapkus over 15 years ago

TI__Guru**** 189401 points

Hi, Mike,

Yes, there are indeed some internal connections, and they must all be tied to the same power supply, otherwise you may let the magic smoke out.

-d2

0 Mike Tripoli over 15 years ago in reply to Don Dapkus

Genius 3295 points

Ok, thanks very much. A more fundamental question then; for a 2 x 300W design I then need 50V @ 12A?

0 Mike Tripoli over 15 years ago in reply to Mike Tripoli

Genius 3295 points

The website mentions "Class G power supply reference design " however I have yet to find it. Is this available?

Thanks again.

0 Don Dapkus over 15 years ago in reply to Mike Tripoli

TI__Guru**** 189401 points

Mike,

I refuse to get drawn into such conversations as to how much power is needed in the power supply!!!!!!! LOL

This is a very tough question to answer. It really depends on what you want your system to do. Most consumer systems have power supplies rated at about 1/10th the power listed on the box... It's all about crest factor!

-d2

0 Don Dapkus over 15 years ago in reply to Mike Tripoli

TI__Guru**** 189401 points

Mike,

The class-G reference design is currently going thru last minute quality checks. It should be available in a few weeks.

-d2

0 Kevin Haskins over 15 years ago in reply to Don Dapkus

Prodigy 30 points

The answer is simple. If your competitor has a larger supply, you say it is more than needed. If your competitor has a smaller one it is because they are cutting corners.

0 Mike Tripoli over 15 years ago in reply to Don Dapkus

Genius 3295 points

Hi Don,

Any word on this power supply (or design)? We have our prototype working very well, but I'd like to see the class-G anyway.

Thanks,

Mike Tripoli

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TAS5630 PVDD_x Internal Connections