Visible to Intel only — GUID: wqg1706074221751
Ixiasoft
Visible to Intel only — GUID: wqg1706074221751
Ixiasoft
6.1. Example 1: Constant Die Power with CFD and TJ-MAX Calculation Mode
This example uses an Agilex™ 5 FPGA, part number A5ED065BB32A and CTM file ctm-A5E-065-B32.
The following figures illustrate the Main and Thermal tabs in the PTC. The total power dissipation in this application is about 13 watts and the PTC calculates a TCASE value of 78.5⁰ C, so the TJ-MAX does not exceed 100⁰ C.
You can enter any value for the TJ-MAX on the Thermal tab. This value depends primarily on your design goals, such as product life, power dissipation, or creating margins for future additions to the design.
![](/content/dam/docs/us/en/814008/24-1/hrw1706074599536.png)
![](/content/dam/docs/us/en/814008/24-1/vqt1706074927650.png)
For thermal analysis, this example assumes a heat sink with the same footprint as the FPGA device and a ducted cooling channel to simplify the analysis. The following figure illustrates the stack-up in the wind tunnel.
![](/content/dam/docs/us/en/814008/24-1/cyi1706075188803.png)