DP83826I: thermal value for YJT=31.4 K/W correct?

KKF

Part Number: DP83826I

Hi TI ETH team,

Is the DP83826 datasheet value for YJT of 31.4 C/W correct? It looks too high. According this app note (https://www.ti.com/lit/an/spra953c/spra953c.pdf), I'd expect it to be around 1K/W (similar to the DP83822).

Many Thanks & BR,
KF

over 3 years ago

0 Gerome Cacho over 3 years ago

TI__Mastermind 39795 points

Hello,

Can you please clarify the unit K/W? Do you mean K = Kelvin = 4C/W?

Sincerely,

Gerome

0 KKF over 3 years ago in reply to Gerome Cacho

TI__Expert 4455 points

Hi Gerome,

Yes, I mean Kelvin/Watt = K/W = C/W. And 31.4 K/W for the YJT of DP83826 looks to be too high. Can you check?

Thanks a lot & BR

0 Gerome Cacho over 3 years ago in reply to KKF

TI__Mastermind 39795 points

Hello,

After looking into this, we have found a typo for that section which will be corrected in an upcoming datasheet revision. The information is as follows in Celsius/Watt (C/W):

Rja - 52

Rjc - 42

Rjc - 11.9

Rjb - 31.5

Yjt - 2.1

Yjb - 31.4

Sincerely,

Gerome

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DP83826I: thermal value for YJT=31.4 K/W correct?