SLVUDL4 October   2025

 

  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 and Push Buttons
  9. 3Software
    1. 3.1 Software Description
  10. 4Application Specific Use Case
    1. 4.1 Application-Specific General Overview
    2. 4.2 TPD4S201 Short-to-Vbus Protection
    3. 4.3 TPS25751AEVM and BQ257xxEVM Setup
      1. 4.3.1 Hardware Setup with BQ25756(E)EVM
      2. 4.3.2 Setting up with BQ25792EVM or BQ25798EVM
      3. 4.3.3 Liquid Detection and Corrosion Mitigation Overview
        1. 4.3.3.1 Liquid Detection and Corrosion Mitigation Hardware 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

4.2 TPD4S201 Short-to-Vbus Protection

The TPS25751AEVM comes with TPD4S201 to protect the TPS25751A PD controller from shorts on the CC and SBU pins. The TPD4S201 is a single-chip USB Type-C port protection device that provides absolute maximum 28V four channels short-to-Vbus overvoltage and IEC ESD protection. TPD2S300 protects the TPS25751A PD controller from shorts to the DP and DM pins. The TPD2S300 is a single-chip USB Type-C port protection device that provides absolute maximum 28V two channels short-to-Vbus overvoltage and IEC ESD protection.

On the TPS25751AEVM, the hardware is set to use GPIO1 on TPS25751AS as an active low input. When a short-to-Vbus short occurs on the CCx, SBUx, or DP or DM pins, the FLT pin is driven low by a protection device to indicate a short has occurred and prompts TPS25751A to enter Type-C error recovery. When the FLT is driven low, GPIO1 LED D6 toggles low and toggles back high once the short is removed. For more details, see the TPD4S201 and TPD2S300 product pages.

TPS25751AEVM TPD4S201 and TPD2S300 EVM LocationFigure 4-1 TPD4S201 and TPD2S300 EVM Location
Table 4-1 TPD4S201 Test Points
Test Point on EVMDescription
TP5 - C_CC1Connected to C_CC1 (pin 4) of TPD4S201, between TPD4S201 and J14 Type-C connector. This test point is subjected to overvoltage and short conditions at the Type-C connector.
TP6 - C_CC2Connected to C_CC2 (pin 5) of TPD4S201, between TPD4S201 and J14 Type-C connector. This test point is subjected to overvoltage and short conditions at the Type-C connector.
TP9 - C_SBU1Connected to C_SBU1 (pin 1) of TPD4S201, between TPD4S201 and J14 Type-C connector. This test point is subjected to overvoltage and short conditions at the Type-C connector.
TP10 - C_SBU2Connected to C_SBU2 (pin 2) of TPD4S201, between TPD4S201 and J14 Type-C connector. This test point is subjected to overvoltage and short conditions at the Type-C connector.
JP_15 - GPIO1Connected from FLT (pin 9) of TPD4S201 to GPIO1 of TPS25751A. Set GPIO1 to Fault_Input_Event (33) with in the GUI. When TPD4S201 drives this pin low, GPIO1 toggles D6 LED low and TPS25751A enters Type-C error recovery.
H1 Pin9- CC1Connected from CC1 (pin 11) of TPD4S201 to CC1 of TPS25751A. This test point is protected from overvoltage and short conditions at the Type-C connector.
H1 Pin10-CC2Connected from CC2 (pin 12) of TPD4S201 to CC2 of TPS25751A. This test point is protected from overvoltage and short conditions at the Type-C connector.
H1 Pin11-

SBU1

Connected from SBU1 (pin 15) of TPD4S201 to SBU1 of TPS25751A. This test point is protected from overvoltage and short conditions at the Type-C connector.
H1 Pin12-

SBU2

Connected from SBU2 (pin 14) of TPD4S201 to SBU2 of TPS25751A. This test point is protected from overvoltage and short conditions at the Type-C connector.