TAS5630B PowerPad and TI SLMA002 and SLMA004

George Schattschneider

Other Parts Discussed in Thread: TAS5630B, TAS5630

I sent the following email to TI support and a computer-generated message told me that to serve me better I was being directed to this forum:

I am very interested in your TAS5630B class D amplifier.

The datasheet shows that both available packages have PowerPADs on the TOP side.

The datasheet also recommends the TI Lit Nos SLMA002 and SLMA004 to understand how to best dissipate the heat from the PowerPAD.

However, both SLMAs deal only with PowerPADs on the BOTTOM of a package.

It appears that the recommended SLMAs are of no benefit whatsoever to someone who wants to provide heatsinking for the TAS5630.

Am I missing something here?

Can you please send me complete information as to how to best heatsink the TAS5630B that has a PowerPAD on TOP and not on the BOTTOM?

over 12 years ago

0 user5276421 over 12 years ago

TI__Mastermind 37045 points

Hi George,

Below are a couple of threads on TAS5630 heat sink mount and thermal compounds. We typically use Ceramique on these EVMs with great results.

2821.ceramique.zip

http://e2e.ti.com/support/amplifiers/audio_amplifiers/f/6/p/186522/672349.aspx#672349

http://e2e.ti.com/support/amplifiers/audio_amplifiers/f/6/p/176898/647956.aspx#647956

reg,

Paul Chen

Applications Engineer

Dallas TX

0 Don Dapkus over 12 years ago in reply to user5276421

TI__Guru**** 189401 points

Hi, George,

I wanted to log this in our system for review the next time we make edits to the d/s, but I could not find reference to either document in the d/s. Can you tell me what page # you saw those references on?

-d2

0 Don Dapkus over 12 years ago in reply to Don Dapkus

TI__Guru**** 189401 points

Hi, George,

-d2

0 George Schattschneider over 12 years ago in reply to Don Dapkus

Prodigy 30 points

Hi d2,

I replied to both of your requests by replying directly to the email that you sent to me. It appears that those direct email replies are being lost.

The references to SLMA002 and SLMA004 are found on pages 32, 33, and 34 of the datasheet. The text on these pages does not show up when you do a PDF text search which is probably why you couldn't find them.

0 George Schattschneider over 12 years ago in reply to Don Dapkus

Prodigy 30 points

Hi d2,

Sorry, make that pages 31, 32, and 33.

0 Don Dapkus over 12 years ago in reply to George Schattschneider

TI__Guru**** 189401 points

Hi, George,

Yes, unfortunately, we don't have email capability in this forum.

Thanks for the info. I will add this to the list of revisions for the next time we edit the TAS5630B data sheet.

-d2

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TAS5630B PowerPad and TI SLMA002 and SLMA004