TIDUF21A December   2022  – January 2023

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Description of Control Logic
      2. 2.2.2 Behavior Throughout Charge Cycle
      3. 2.2.3 Additional Design Recommendations
      4. 2.2.4 Simulation Results
    3. 2.3 Highlighted Products
      1. 2.3.1 TPSI3052-Q1
      2. 2.3.2 TLV7011
      3. 2.3.3 UCC27517A-Q1
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Test Setup
    3. 3.3 Test Results
  9. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Documentation Support
    3. 4.3 Support Resources
    4. 4.4 Trademarks
  10. 5About the Authors
  11. 6Revision History

2.2 Design Considerations

The active pre-charge topology takes advantage of the inductor electrical properties and charges the capacitor with an average current produced by connecting a disconnecting the inductor to the battery. The control circuitry that controls the FET ON/OFF cycle is described in detail below.