Power and Thermal Analyzer User Guide

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ID 865226
Date 9/29/2025
Public
Document Table of Contents
Document Table of Contents x
1. Overview of the Power and Thermal Analyzer 2. Estimating Power Consumption with the Power and Thermal Analyzer 3. Power and Thermal Analyzer (PTA) Graphical User Interface 4. Power and Thermal Analyzer Resource Types 5. Command Line Options and Scripting 6. Factors Affecting the Accuracy of the Power and Thermal Analyzer 7. Document Revision History for the Power and Thermal Analyzer User Guide A. Measuring Static Power B. Tcl Command Reference
1. Overview of the Power and Thermal Analyzer x
1.1. Accessing the Power and Thermal Analyzer 1.2. PTA Power Model Status 1.3. Definitions of Power Terms Used in this Document
2. Estimating Power Consumption with the Power and Thermal Analyzer x
2.1. Estimating Power Before Starting the FPGA Design 2.2. Estimating Power While Creating the FPGA Design 2.3. Estimating Power After Completing the FPGA Design 2.4. Estimating Power for Dual-Core Devices
3. Power and Thermal Analyzer (PTA) Graphical User Interface x
3.1. PTA - Device Selector Dialog Box 3.2. PTA - Primary GUI Components 3.3. PTA - Hierarchical Design Editor 3.4. PTA - Using Design Hierarchies in the Power and Thermal Analyzer 3.5. PTA - Entering Hierarchy Information Into the PTA 3.6. PTA - Current Drawn per Supply Tab 3.7. PTA - Temperature and Cooling Tab 3.8. PTA - Resource Utilization Panel 3.9. PTA - Register Dynamic Power in Agilex Devices 3.10. PTA - Input Fields 3.11. PTA - Data Entry Error Messages 3.12. PTA - Search Features 3.13. PTA - Filtered Searches 3.14. PTA - Using the Tcl Console to Perform Searches
4. Power and Thermal Analyzer Resource Types x
4.1. PTA - Power Summary 4.2. PTA - Root Entry 4.3. PTA - Instance 4.4. PTA - Logic Resource Type 4.5. PTA - RAM Resource Type 4.6. PTA - DSP Resource Type 4.7. PTA - Clock Resource Type 4.8. PTA - PLL Resource Type 4.9. PTA - I/O Resource Type 4.10. PTA - Transceiver Resource Type 4.11. PTA - Crypto Resource Type 4.12. PTA - NOC Resource Type 4.13. PTA - HBM Resource Type
4.10. PTA - Transceiver Resource Type x
4.10.1. PTA - Estimating E-Tile Channel PLL Power
5. Command Line Options and Scripting x
5.1. Invoking the Power and Thermal Analyzer from the Command Line 5.2. Running Scripts with the Power and Thermal Analyzer
6. Factors Affecting the Accuracy of the Power and Thermal Analyzer x
6.1. Toggle Rate 6.2. I/O Bank Allocation
B. Tcl Command Reference x
B.1. add B.2. copy B.3. delete B.4. edit B.5. export_design_file B.6. find_instances B.7. get_available_ips B.8. get_available_resource_types B.9. get_available_values B.10. get_first_error B.11. get_properties B.12. get_report B.13. get_report_names B.14. get_results B.15. get_value B.16. import_design_file B.17. move B.18. open_design_file B.19. pta::get_active_design B.20. pta::get_defaults B.21. pta::get_designs B.22. pta::locate B.23. pta::set_active_design B.24. pta::set_family B.25. recalculate_power B.26. redo B.27. save B.28. set_device B.29. set_view B.30. undo
1. Overview of the Power and Thermal Analyzer
2. Estimating Power Consumption with the Power and Thermal Analyzer
3. Power and Thermal Analyzer (PTA) Graphical User Interface
4. Power and Thermal Analyzer Resource Types
5. Command Line Options and Scripting
6. Factors Affecting the Accuracy of the Power and Thermal Analyzer
7. Document Revision History for the Power and Thermal Analyzer User Guide
A. Measuring Static Power
B. Tcl Command Reference

3.6. PTA - Current Drawn per Supply Tab

The Current Drawn per Supply tab shows per-rail currents that the Power and Thermal Analyzer (PTA) calculates.
Important: This report is for determining how much current each rail must be able to handle. Some of the power savings shown on pages, like Static Power Savings and Smart VID Power Savings, could come from different voltage rails for different devices, and because of this reason, the total power each rail must be able to deliver is higher than the total power the device uses.
Figure 21. Current Drawn per Supply Tab of the PTA ( Agilex™ Devices)
The report provides current requirements for each voltage rail, expressed in terms of static current, dynamic current, and total current.
Figure 22. Current Drawn per Supply Tab of the PTA ( Stratix® 10 Devices)
Table 6.  Current Drawn per Supply Tab Information
Column Heading Description
Rail Name of the voltage rail.
Voltage (mV) Rail voltage.
Static Current (A) Indicates the component of current consumed from the specified power rail whenever the power is applied to the rail, independent of circuit activity (in A). This current is dependent on device size, device grade, power characteristics and junction temperature.
Standby Current (A) Indicates the component of active current drawn from the specified power rail by all modules on all pages, independent of signal activity (in A). This current is independent of device grade, power characteristics and junction temperature. Standby current includes, but is not limited to, I/O and transceiver DC bias current. Device size has only a small impact on transceiver DC bias current. (This column applies only to Stratix® 10 devices.)
Dynamic Current (A) Indicates the component of active current drawn from the specified power rail due to signal activity of all resources of all instances (in A). This current depends on device size, but is independent of device grade, power characteristics and junction temperature.
SmartVID Current Savings (A) Indicates the total current saved from the specified power rail due to SmartVID savings (in A). (This column applies only to Agilex 7 devices.)
Total Current Before SmartVID Savings (A) Indicates the total current consumed from the specified power rail before SmartVID savings (in A). The sum of static, standby, and dynamic currents. (This column applies only to Stratix® 10 devices.)
Total Current (A) Indicates the total current consumed from the specified power rail (in A). For devices and rails supporting SmartVID, this column shows total current after SmartVID current savings; otherwise, the current reported in this column should equal the sum of static and dynamic currents (for Agilex FPGA portfolio devices) or the sum of static, standby, and dynamic currents (for Stratix® 10 devices.)
Recommended Margin Indicates the recommended margin on total current for regulator sizing. The recommended margin on the Vcc rail is calculated based on the ratio of dynamic to static power.
Note: This field is available only for parts with a FINAL power model.

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