SLVUCP8 September   2024 TPS26750

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Additional Images
    2. 2.2 Power Requirements
    3. 2.3 Setup
    4. 2.4 Header Information
    5. 2.5 Jumper Information
    6. 2.6 Push Buttons
    7. 2.7 Interfaces
    8. 2.8 Debug Information
    9. 2.9 Test Points and LEDS
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 Software Installation
      1. 3.2.1 Web Browser
      2. 3.2.2 Native Application
    3. 3.3 Software Development
    4. 3.4 Using the Application Customization Tool
      1. 3.4.1 Default View
      2. 3.4.2 Selecting a Configuration
      3. 3.4.3 Filling Out the Questionnaire
      4. 3.4.4 Advanced Configuration Mode
      5. 3.4.5 Flashing Configuration to TPS26750
      6. 3.4.6 Additional Settings
        1. 3.4.6.1 Generating a New Configuration
        2. 3.4.6.2 Exporting and Importing Settings
        3. 3.4.6.3 Generating the Binary
        4. 3.4.6.4 Generating the VIF File
  10. 4Application Specific Use Cases
    1. 4.1 Liquid Detection and Corrosion Mitigation Overview
      1. 4.1.1 Liquid Detection and Corrosion Mitigation Hardware Setup
      2. 4.1.2 Liquid Detection and Corrosion Mitigation Software Setup
      3. 4.1.3 Liquid Detection Detailed Implementation
        1. 4.1.3.1 Liquid Detection Config Register (0x98)
    2. 4.2 Use With the BQ25756EVM
      1. 4.2.1 Hardware Setup with BQ25756EVM
      2. 4.2.2 Software Setup with the BQ25756EVM
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  12. 6Additional Information
    1. 6.1 Trademarks
    2. 6.2 Electrostatic Discharge Caution
    3. 6.3 Terminology
    4. 6.4 Device Support
      1. 6.4.1 Third-Party Products Disclaimer
      2. 6.4.2 Supplemental Content
    5. 6.5 Documentation Support
    6. 6.6 Receiving Notification of Documentation Updates
    7. 6.7 Support Resources

4.1.2 Liquid Detection and Corrosion Mitigation Software Setup

To set up Liquid Detection and Corrosion Mitigation software, follow the instructions below:

  1. Open the Application Customization Tool and fill out the questionnaire. For more details on each question configuration, refer to Section 3.4.3.
  2. For Question 8, select Yes. Selecting Yes enables key registers and fields in Advanced Configuration. The default Liquid Detection configuration is shown below:
    Table 4-2 Liquid Detection and Corrosion Mitigation Default Configuration
    Register Field Description
    Interrupt Mask for I2C1 (0x16) Liquid Detection [60] Enable interrupt event for Liquid Detection [60].
    IO Config (0x5c) GPIO_1 Set to LIQUID_DETECTED (157). When liquid is detected at J4 Type-C port, GPIO1 toggles high until liquid is no longer present.
    IO Config (0x5c) GPIO_4 Set to Pin multiplexed to ADC for detecting liquid on SBU1.
    IO Config (0x5c) GPIO_5 Set to Pin multiplexed to ADC for detecting liquid on SBU2.
    IO Config (0x5c) GPIO_6 Set to LIQUID_PMOS_CONTROL (155). GPIO6 is used to toggle the PFET to enable pull-up to detect short to GND.
    IO Config (0x5c) GPIO_7 Set to LIQUID_NMOS_CONTROL (156). GPIO7 is used to toggle the NFET to enable pull-down to detect short to VBUS/CC.
    Liquid Detection Config (0x98) Enable Corrosion Mitigation [81] Enable feature to automatically disable J4 Type-C port if liquid is detected.
    Liquid Detection Config (0x98) Enable Liquid Detection [82] Enable feature to detect liquid at J4 Type-C port.
  3. Refer to Section 3.4.4 to make additional configuration changes by enabling Advanced Configuration.
  4. Refer to the TPS26750 USB Type-C® and USB PD Controller with Integrated Power Switches Optimized for Power Applications data sheet and the TPS26750 Technical Reference Manual for in-depth details of each register and their respective fields.