AN 944: Thermal Modeling for Agilex™ 7 FPGAs with the Intel® FPGA Power and Thermal Calculator

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ID 683810
Date 11/07/2024
Public
Document Table of Contents
Document Table of Contents x
1. List of Abbreviations 2. Introduction 3. Agilex™ 7 FPGA Package Mechanical Design 4. Agilex™ 7 FPGA Thermal Design Parameters 5. Thermal Design Process for Agilex™ 7 Devices 6. Power and Thermal Calculator (PTC) for Agilex™ 7 Devices 7. Example 2—Alternative Method of Analyzing Thermal Design 8. Document Revision History for AN 944: Thermal Modeling for Agilex™ 7 FPGAs with the Intel® FPGA Power and Thermal Calculator
3. Agilex™ 7 FPGA Package Mechanical Design x
3.1. Agilex™ 7 Physical Package Structure
4. Agilex™ 7 FPGA Thermal Design Parameters x
4.1. Agilex™ 7 Compact Thermal Model (CTM) 4.2. Agilex™ 7 Temperature Sensing 4.3. Thermal Sensor Accuracy
5. Thermal Design Process for Agilex™ 7 Devices x
5.1. Thermal Parameter Dependencies and Accuracy
6. Power and Thermal Calculator (PTC) for Agilex™ 7 Devices x
6.1. Device Selection and Analysis Example 6.2. Logic Design Information 6.3. Thermal Page and Thermal Design Parameters 6.4. CTM Model 6.5. Heat Sink 6.6. CFD Model
7. Example 2—Alternative Method of Analyzing Thermal Design x
7.1. Example 2—Full Length 1 Slot PCIe with 2 FPGAs 7.2. Thermal Design Optimization
1. List of Abbreviations
2. Introduction
3. Agilex™ 7 FPGA Package Mechanical Design
4. Agilex™ 7 FPGA Thermal Design Parameters
5. Thermal Design Process for Agilex™ 7 Devices
6. Power and Thermal Calculator (PTC) for Agilex™ 7 Devices
7. Example 2—Alternative Method of Analyzing Thermal Design
8. Document Revision History for AN 944: Thermal Modeling for Agilex™ 7 FPGAs with the Intel® FPGA Power and Thermal Calculator

6. Power and Thermal Calculator (PTC) for Agilex™ 7 Devices

The Intel® FPGA Power and Thermal Calculator (PTC) can estimate the power consumption of an Agilex™ 7 FPGA and generate the thermal parameters needed for a system thermal simulation or evaluation of an existing solution..

The PTC is available in two versions:

  • A standalone version that you can use without having an actual RTL design. You provide all input to this version manually, or from an imported .ptc or .csv file. The standalone version is essential at the early stages of projects when power and cooling requirements must be determined and no RTL design is available.
  • An embedded version that is part of the Quartus® Prime software. Input data for this version is generated when you compile an RTL design. This version can provide more accurate results, and should be used when possible.

The Quartus® Prime PTC can export a design file to the standalone PTC for ease of use and faster what-if analysis.

The PTC allows you to enter and select relevant information for your FPGA design and calculate relevant power and relevant thermal design information for that design. The data provided to the PTC includes device information, FPGA logic design information, and thermal information. The effects of the above inputs determine the overall power dissipation of each die and the thermal characteristics of the package to use for system thermal modeling.

The following figure depicts the PTC Main page, where you can select your FPGA device and enter a junction temperature while the thermal calculator is off. In this mode the calculated power is for all the dies at the same temperature and the PTC does not report the individual die thermal power for thermal analysis.

Figure 5.  Intel® FPGA Power and Thermal Calculator Main Page

You can download the standalone PTC from the Additional Software tab on the Download Center for FPGAs page, here: https://fpgasoftware.intel.com/21.1/?edition=pro

The Intel® FPGA Power and Thermal Calculator User Guide is available here: https://www.intel.com/content/www/us/en/programmable/documentation/mdj1572270584041.html


Section Content
Device Selection and Analysis Example
Logic Design Information
Thermal Page and Thermal Design Parameters
CTM Model
Heat Sink
CFD Model

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