CSD87588N: Rtheta JB

Steve Widener

Part Number: CSD87588N

Rtheta JB isn't called out in the datasheet - what is a realistic Rtheta_J_B for the device assuming all heat is removed through the PCB (no airflow)?

over 4 years ago

+1 Chris Bull over 4 years ago

TI__Expert 7905 points

Steve,

Thanks for the interest in the CSD87588N.

The Rth is actually in the datasheet but does not state specifically RthJ-B. On page 3 of the datasheet it lists a value of Rth junction to case(PGND pin). This PGND pin if you look at the diagram on page 1 of the datasheet is the large pad that connects to the PCB. So in effect this value is the RthJB you are looking for.

0 Steve Widener over 4 years ago in reply to Chris Bull

TI__Genius 11010 points

Thanks for the quick response Chris!

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CSD87588N: Rtheta JB