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CSD87502Q2: Need θJC parameter

Part Number: CSD87502Q2
Other Parts Discussed in Thread: CSD85301Q2, , CSD17318Q2

Hi there,

customer need θJC of CSD85301Q2 and CSD87502Q2.

do we have this data, if so, please share it to me. 

if we don't have, please explain what is proper way to estimate the thermal performance of these two FETs,


Shubiao Wang

  • Hello Shubiao,

    Thanks for the inquiry. Unfortunately, TI does not test or spec RθJC for the CSD87502Q2. For a single FET, CSD17318Q2, in 2x2mm SON, RJC = 7.9°C/W on 1in. x 1in., 2 oz. copper pad. This device has one large thermal pad and I would estimate RθJC ~ 10-12°C/W for the dual FET with two smaller thermal pads for each drain on the same 1in. x 1in., 2oz. copper pad.

    Best Regards,

    John Wallace

    TI FET Applications