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Hi Team,
We are using CSD87351ZQ5D and CSD19537Q3 FET in one of our designs where we need Junction-to-Board( θJB) thermal data.
Hello Lathish,
Thanks for your interest in TI FETs. For both of these devices, the thermal resistance specified in the datasheet is from junction to the thermal pad (drain on the CSD19537Q3 and PGND on the CSD87351ZQ5D) on the bottom of the package. You can use this value for RθJB.
Best Regards,
John Wallace
TI FET Applications