Power Rail Consolidation - 2024.2 English - UG1556

Power Design Manager User Guide (UG1556)

Document ID
UG1556
Release Date
2024-11-18
Version
2024.2 English

PDM models power rail consolidation based on selected power delivery solution. PDM supports following two options for power delivery solution.

Full Power Management

This is the recommended solution. It allows for full power management, which means that an individual rail can be sequenced on and off as required to reduce power.

Minimum Rails

This mode allows to consolidate power supply while maintaining the required sequence and voltage specification for every rail.

Only Minimum Rails option is available for Artix UltraScale+, Kintex UltraScale+ and Virtex UltraScale+ devices.

Figure 1. Power Rail Consolidation
Figure 2. Power Delivery Design for Rail Consolidation

Based on the power rail consolidation selection, the following images change to show the connectivity based on the targeted device.

There are two options for every device, Full Power Management and Minimum Rails. These options change automatically based on the VCCINT voltage of the targeted device or when the PS overdrive is used in a low voltage device. The following image shows the Power Management diagram when Full Power Management is chosen.

Figure 3. Power Delivery and Sequencing for Rail Consolidation