SLUUCB4 June   2020 TPS25980

 

  1.   TPS25980EVM: Evaluation Module for TPS25980x efuse
    1.     Trademarks
    2. 1 Introduction
      1. 1.1 EVM Features
      2. 1.2 EVM Applications
    3. 2 Description
    4. 3 Schematic
    5. 4 General Configurations
      1. 4.1 Physical Access
      2. 4.2 Test Equipment and Set up
        1. 4.2.1 POWER SUPPLIES
        2. 4.2.2 METERS
        3. 4.2.3 OSCILLOSCOPE
        4. 4.2.4 LOADS
    6. 5 Test Setup and Procedures
      1. 5.1 Hot-Plug Test
      2. 5.2 Current Limit Test
      3. 5.3 Output Hot-Short Test
      4. 5.4 Wakeup into Short Test
      5. 5.5 Overvoltage Cut-off Test
    7. 6 EVAL Board Assembly Drawings and Layout Guidelines
      1. 6.1 PCB Drawings
    8. 7 Bill Of Materials (BoM)

5.3 Output Hot-Short Test

Use the following instructions to perform output Hot-Short test:

  1. Set the input supply voltage VIN to 12 V and current limit of 15 A. Turn ON the power supply.
  2. Short the output of the device for example, VOUT to GND with a shorter cable.
  3. Observe the waveforms using an oscilloscope.

Figure 5 shows test waveform of output hot-short on the TPS25980EVM eFuse Evaluation Board.

TPS25980 Hot-short.pngFigure 5. Output Hot-short response of TPS259804O device