TIDUF94 October   2024

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 DP83TC818S-Q1 (Automotive SPE PHY)
      2. 2.3.2 TPS7B8233-Q1 (3.3V Vsleep Ultra-Low-IQ Low-Dropout Regulator)
      3. 2.3.3 TPS74701-Q1 (1.0V Rail Low-Dropout Regulator)
      4. 2.3.4 CDC6CE025000-Q1 (BAW Oscillator)
      5. 2.3.5 TPS4H160-Q1 (High-Side Switch)
  9. 3System Design Theory
    1. 3.1 Ethernet PHY
      1. 3.1.1 Ethernet PHY Power Supply
      2. 3.1.2 Ethernet PHY Clock Source
    2. 3.2 Power Coupling Network
      1. 3.2.1 High-Side Switch
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
    2. 4.2 Software Requirements
    3. 4.3 Test Setup
    4. 4.4 Test Results
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
    2. 5.2 Tools and Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  12. 6About the Author

3.2.1 High-Side Switch

The TPS4H160-Q1 four channel high-side switch in combination with the jumpers J25, J26, J27, and J33 is used to enable or disable the coupling of 12V to the data line. Populate the jumpers to enable the output. The switch also provides protection against short-to-GND and thermal shutdown.

TIDA-020071 High-Side Switch Schematic Figure 3-3 High-Side Switch Schematic