is the sum of the junction-to-case and case-to-ambient thermal resistance where the case thermal reference is defined as the solder mounting surface of the drain pins. R
θ
JC
is guaranteed by
design while R
θ
CA
is determined by the user's board design.
a. 78
o
C/W when mounted on a 1 in
2
pad of 2oz Cu on FR-4 board.
b. 156
o
C/W when mounted on a minimum pad of 2oz Cu on FR-4 board.
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