SLUUCV8 October   2023 TPS4810-Q1

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Overview
    2. 2.2 General Configurations
      1. 2.2.1 Physical Access
      2. 2.2.2 Test Equipment and Setup
        1. 2.2.2.1 Power Supplies
        2. 2.2.2.2 Meters
        3. 2.2.2.3 Oscilloscope
        4. 2.2.2.4 Loads
  8. 3Implementation Results
    1. 3.1 Test Setup and Procedures
      1. 3.1.1 Power-up with EN Control
      2. 3.1.2 Overload and Short Circuit Protection Test
      3. 3.1.3 Short-Circuit Protection Diagnosis Test
      4. 3.1.4 Input Reverse Polarity Test
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill Of Materials (BoM)
  10. 5Additional Information
    1.     Trademarks

Overload and Short Circuit Protection Test

Use the following instructions to perform over current test on the TPS4810Q1EVM:

  1. Turn ON the power supply and set the power supply output VIN = 48 V, current limit = 50 A.
  2. Set the Short Circuit Protection (SCP) threshold at 30 A by installing jumper J3 in 3-4 position and install jumper J2 in 1-2 position to set 1-ms delay.
  3. Enable the control inputs (INP1 and INP2).
  4. Now, load the output to 25 A with electronic load and apply a step of 10 A to observe the overload behavior of TPS48100-Q1.
  5. Disconnect the load.
  6. To perform short-circuit test, uninstall J2 to set shortest SCP delay.
  7. Perform output short to capture the short-circuit behavior of TPS48100-Q1.
GUID-20231008-SS0I-K4VM-ZVMD-RHHXVTGPDVFM-low.pngFigure 3-4 Overcurrent Response of TPS4810Q1EVM for 25-A to 35-A Load Step
GUID-20231008-SS0I-DKTR-BFBL-KWFCGGNCSJMN-low.pngFigure 3-5 Auto-Retry Response of TPS48100-Q1 for an Overcurrent Fault
GUID-20231008-SS0I-TJQL-N3LV-TFKNRM1BF7BS-low.png Figure 3-6 Latch-off Response of TPS48100-Q1 for an Overcurrent Fault
GUID-20231008-SS0I-TZMV-BQWH-MFSX7VQN5VZC-low.png Figure 3-7 Output Short-Circuit Response of TPS48100-Q1