SLVUC34 March   2021 TPS2521

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 EVM Applications
  3. 2Description
  4. 3Schematic
  5. 4General 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. 5Test Setup and Procedures
    1. 5.1 Start up the eFuse
    2. 5.2 Over Current Test
    3. 5.3 Output Hot-Short Test
    4. 5.4 Power Up into Short Test
    5. 5.5 Overvoltage Clamp Test
    6. 5.6 Reverse Current Blocking Test
  7. 6EVAL Board Assembly Drawings and Layout Guidelines
    1. 6.1 PCB Drawings
  8. 7Bill Of Materials (BoM)

5.6 Reverse Current Blocking Test

Use the following instructions to perform reverse current blocking test:
  1. Set the input supply voltage VIN to 5 V and current limit of 10 A. Enable the power supply.
  2. Take another power supply, set the output voltage at 10 V, and apply between VOUT and PGND points of connector J2.
  3. Observe the input voltage, output voltage, and input current using the oscilloscope.

Figure 5-7 shows reverse current blocking performance on TPS25210EVM eFuse Evaluation Board.

GUID-20210329-CA0I-JXSF-HPT3-292DD0TGXNHS-low.gifFigure 5-9 Reverse Current Blocking Performance on TPS25210x at VIN = 5 V, Cout = 220 μF, VOUT = 10 V Initially Disconnected and Then Connected