SLVUCR9B August   2023  – January 2024 TPS2HCS10-Q1

 

  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 Assembly Instructions
    2. 2.2 Revision Differences
    3. 2.3 Jumper Information
    4. 2.4 Interfaces
    5. 2.5 Test Points
    6. 2.6 Transient Testing
  9. 3Software
    1. 3.1 Software Usage
      1. 3.1.1  Command Center View
      2. 3.1.2  I2T Tuner
      3. 3.1.3  Device Settings
      4. 3.1.4  Channel Settings
      5. 3.1.5  Console View
      6. 3.1.6  Log View
      7. 3.1.7  Importing/Exporting
      8. 3.1.8  Firmware Updates
      9. 3.1.9  Persist Settings
      10. 3.1.10 Language Settings
    2. 3.2 Software Development
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Revision History

2.6 Transient Testing

By default, the smart fuse evaluation module is used to optimize out-of-box user experience and ease-of-use. Support has been added to support transient testing such as short-to-ground without damaging any onboard component. TI recommends that if any voltage spike is to occur on the supply/VBB line (such as the one that occurs in a short-to-ground scenario), then the EVM is configured to bypass the onboard buck converter and instead source VDD externally. This can be done by disconnecting the J15 jumper and setting J11 to the external. This jumper configuration can be seen below.

GUID-20240122-SS0I-P8XJ-HTR9-M2VSC71TH7KV-low.jpg Figure 2-7 Disable Buck Converter

Once configured to use an external VDD source, connect a compatible (generally 5V or 3.3V) power supply to External VDD as seen below.

GUID-20240122-SS0I-XR56-NDKL-RNWNM4CQZ7QK-low.jpg Figure 2-8 Isolate Supply Line

With an external power supply sourcing VDD, a short-to-ground or other transient condition can be safely applied to the EVM. An example of a short-to-ground condition can be seen below in Figure 3-9.

GUID-20240122-SS0I-BKS2-JVNF-NN6P8HZPWSPS-low.png Figure 2-9 Short-to-Ground Event