ΘSA (C/W) - 2021.1 English

Xilinx Power Estimator User Guide (UG440)

Document ID
UG440
Release Date
2021-06-16
Version
2021.1 English

ΘSA represents the heat sink to ambient air thermal resistance. By default XPE obtains this value from a representative selection of heat sink data matched to the device package, combined with the Heat Sink value you set (Low Profile, Medium Profile, or High Profile) and the Airflow value you set. The value used by XPE is shown in the ΘSA field on the Summary sheet.

If you have the ΘSA information for your system you can enter your specific value. First set the Heat Sink drop-down menu on the Summary sheet to Custom, then enter your ΘSA value.