SLVAFG6B December   2022  – November 2024 TPS25762-Q1 , TPS25763-Q1 , TPS25772-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Terms and Abbreviations
  5. 2 SPM Engine Overview
  6. 3Multi-Port Power Allocation Policy
    1. 3.1 Assured Capacity Policy
    2. 3.2 Shared Capacity Policy
      1. 3.2.1 Fair Share Power Policy
        1. 3.2.1.1 Blind Sink Support
    3. 3.3 Hybrid Mode
  7. 4Power Foldback Policy
    1. 4.1 Thermal Foldback Operation
    2. 4.2 Engine On/Off Transition Management
      1. 4.2.1 Engine On/Off Power Foldback Operation Example
  8. 5Multi-Port Power Allocation Policy Examples
    1. 5.1 Assured Capacity Policy Example
    2. 5.2 Fair Share Power Policy Example
      1. 5.2.1 FSP Policy Example – Blind Sink Support
      2. 5.2.2 FSP Policy Example – Blind Sink Support With Max Power
    3. 5.3 Hybrid Mode Example
  9. 6References
  10. 7Revision History

4 Power Foldback Policy

The TPS2576x-Q1 and TPS2577x-Q1 PD controllers support Power Foldback Policies based on system temperature and VIN supply voltage levels. The Power Foldback Policies are managed by the integrated SPM Engine alongside the Multi-Port Power Allocation Policy (in the case of the TPS25772-Q1). Upon entry into a Power Foldback condition, the SPM uses the System Max Power for the corresponding Power Foldback phase the TPS257xx-Q1 has entered then distributes port power accordingly.
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