SLVUCP9A November   2023  – March 2024 TPS25751

 

  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 Power Requirements
    2. 2.2 Setup
    3. 2.3 Header Information
    4. 2.4 Jumper Information
    5. 2.5 LED Information
    6. 2.6 Test Points
    7. 2.7 Switches/Push Buttons
  9. 3Software
    1. 3.1 Software Description
      1. 3.1.1 Software Installation
      2. 3.1.2 Web Browser
      3. 3.1.3 Native Application
    2. 3.2 Software Development
    3. 3.3 Using the TPS25751 Application Customization Tool
      1. 3.3.1 Default View
      2. 3.3.2 Selecting a Configuration
      3. 3.3.3 Filling Out the Questionnaire
      4. 3.3.4 Advanced Configuration Mode
      5. 3.3.5 Flashing Configuration onto EVM
      6. 3.3.6 Additional Settings
        1. 3.3.6.1 Generating a New Configuration
        2. 3.3.6.2 Exporting and Importing Settings
        3. 3.3.6.3 Generating the Binary
        4. 3.3.6.4 Generating the VIF file
  10. 4Application Specific Use Case
    1. 4.1 Application Specific General Overview
    2. 4.2 TPS25751EVM and BQ257xxEVM Setup
      1. 4.2.1 Setting up with BQ25756(E)EVM
        1. 4.2.1.1 Hardware Setup with BQ25756(E)EVM
        2. 4.2.1.2 Software Setup with BQ25756(E)EVM
      2. 4.2.2 Setting up with BQ25792/8EVM
        1. 4.2.2.1 Hardware Setup with BQ25792/8EVM
        2. 4.2.2.2 Software Setup with BQ25792/8EVM
      3. 4.2.3 Setting up with BQ25713EVM
        1. 4.2.3.1 Hardware Setup with BQ25713EVM
        2. 4.2.3.2 Software Setup with BQ25713EVM
    3. 4.3 Liquid Detection and Corrosion Mitigation Overview
      1. 4.3.1 Liquid Detection/Corrosion Mitigation Hardware Setup
      2. 4.3.2 Liquid Detection/Corrosion Mitigation Software Setup
  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
      1. 6.5.1 Documentation Support
    6. 6.6 Receiving Notification of Documentation Updates
    7. 6.7 Support Resources
  13. 7Revision History

4.3.1 Liquid Detection/Corrosion Mitigation Hardware Setup

Out of the box, the hardware on TPS25751EVM is set up for Liquid Detection/Corrosion Mitigation. R34 and R36 are populated to connect J3 Type-C SBU pins to TPS25751 GPIO4 and GPIO5 for liquid detection, R32 and R33 are not populated. TPD2S300 (U5) is in between TPS25751 and J3 Type-C port for protection in case of short to VBUS. Refer to Figure 5-7 and Figure 5-8 for location details.

GUID-20240301-SS0I-T7LQ-V4FS-SVLZ9TRKR37D-low.svg Figure 4-7 Liquid Detection Resistor Selection
GUID-20240305-SS0I-P9QQ-QHKB-8K2VW26J9Z8S-low.svg Figure 4-8 Liquid Detection Resistor Location
Note: Liquid Detection/Corrosion Mitigation and BC1.2 cannot be configured in the same system, so make sure R32/R33 and R34/R36 are not both populated at the same time.

On the TPS25751EVM the hardware is set to use specific GPIOs for MOSFET control and Liquid Detection feature. For user applications, some GPIOs can be configured differently while some are required for all designs, refer to Table 5-3 for details on specific test point and the configurability for custom designs. Refer to Section 4.3.2.

Table 4-3 Liquid Detection Test Points
Test Point on EVM Description Configurability
GPIO4 Connected to SBU1 for Liquid Detection 1 (LD1) Not configurable for custom designs
GPIO5 Connected to SBU2 for Liquid Detection 2 (LD2) Not configurable for custom designs
SBU1 Connected to GPIO4 for Liquid Detection 1 (LD1) Not configurable for custom designs
SBU2 Connected to GPIO5 for Liquid Detection 2 (LD2) Not configurable for custom designs
GPIO6 Connected to NFET (QN1 and QN2) to enable pull-down, when enabled PD is detecting short to VBUS/CC Configurable for custom designs
GPIO7 Connected to PFET (QP1 and QP2) to enable pull-up, when enabled PD is detecting short to GND Configurable for custom designs
GPIO1 Connected to D9 LED to indicate if liquid is detected at J3 Type-C port Configurable for custom designs