SLVUCK3 December   2022 TPS25961

 

  1.   TPS25961EVM: Evaluation Module for TPS25961 eFuse
  2.   Trademarks
  3. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 EVM Applications
  4. 2Description
  5. 3Schematic
  6. 4General Configurations
    1. 4.1 Physical Access
    2. 4.2 Test Equipment and Setup
      1. 4.2.1 Power Supplies
      2. 4.2.2 Meters
      3. 4.2.3 Oscilloscope
      4. 4.2.4 Loads
  7. 5Test Setup and Procedures
    1. 5.1 Hot-Plug Test
    2. 5.2 Overcurrent Test
    3. 5.3 Output Hot-Short Test
    4. 5.4 Wakeup into Short Test
    5. 5.5 Overvoltage Test
  8. 6EVAL Board Assembly Drawings and Layout Guidelines
    1. 6.1 PCB Drawings
  9. 7Bill of Materials (BOM)

5.5 Overvoltage Test

Use the following instructions to perform the overvoltage protection test on channel 1:

  1. Remove the input TVS diodes.

  2. Place jumper J2 in position 1-2 for fixed OVLO threshold of 5.9V or keep jumper open to select programmable threshold of 13.76 V.

  3. Set the input supply voltage VIN to 12 V and current limit of 2 A. Apply the supply between VIN and PGND at connector J1 and enable the power supply.
  4. Increase the input supply VIN from 12 V to 16 V and observe the waveforms using an oscilloscope.

Figure 5-6 shows overvoltage response of TPS25961 on the TPS25961EVM eFuse evaluation board.

Figure 5-6 Overvoltage Protection Response of the TPS25961 Device for 13.76V OVLO