thetaJC(Janction to Case) of LM2731

Ryuji

Guru 20090 points

Other Parts Discussed in Thread: LM2731

Hello,

Could you please kindly let me know about LM2731?

(1)

Please let me know theta JC of LM2731?

I can find theta JA in the datasheet, but I need theta JC information.

If there is no data of theta JC, please kindly let me know theta JC of similar device with LM2731?

Or please kindly let me know the Ψjt.

(2)

Please kindly let me know the measurement point of theta JC (top or bottom ?)

(3)

If I can't get (1) and (2) data , please kindly let me know the board condition of LM2731 theta JA.

I'm sorry for bothering you.

But, our customer is request above information urgently.

Your contribution would be deeply appreciated.

Best Regards,

Ryuji Asaka

0 Frank De Stasi over 10 years ago

For this package the theta JC is approximately 185 C/W measured at the top center of the case.

This value is very apporximate.

0 Ryuji over 10 years ago in reply to Frank De Stasi

Guru 20090 points

Dear Frank De Stasi,

Thank you very much for your prompt reply.

Best Regards,

Ryuji Asaka

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