THS3217: Device gets hot

ACGUY

Part Number: THS3217

Hello E2E,

Our customer made an engineering board with the THS3217.
After power on, the package of THS3217 get hot reach 60-deg.
The output is open.(non-load)

Please let me know why the device gets hot?

I looked previous post on E2E.
e2e.ti.com/.../ths3491-post-design-question
Is this article related to my post?

Best regards,
ACGUY

over 2 years ago

0 Sima Jalaleddine over 2 years ago

TI__Mastermind 25295 points

Hello ACGUY,

Are you able to share a schematic and snippets of the layout of the THS3217?

Thank you,

Sima

+1 Michael Steffes over 2 years ago

Guru 48395 points

Well with no output signal the device us burning about 800mW

If you can find an ambient to case thermal impedance that will give you the case temp - and that will depend on if you attached the thermal pad to a hit spreading plane.

But say the ambient is 25C, then the 35 C rise you are seeing implies 44C/W. Not too unexcpected perhaps.

0 ACGUY over 2 years ago in reply to Michael Steffes

Guru 11170 points

Hello TI team,

Thank you for your reply.
I explain your comment for our customer, and I make close this matter.

Thank you.
ACGUY

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THS3217: Device gets hot