SLUUDA5 June   2025 TPS4812-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 Overcurrent Protection 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

3.1.2 Overcurrent Protection Test

Use the following instructions to perform I2T based over current test on the TPS4812Q1EVM:

  1. Turn ON the power supply and set the power supply output VIN = 48V, current limit = 16A.
  2. Set the Overcurrent (IOC) threshold at 16A by installing jumper J9 in 1-2 position and install jumper J8 in 1-2 position to set 330-ms I2T trigger time.
  3. Enable the control inputs (INP and LPM).
  4. Now, load the output to 16A with electronic load to observe the overload behavior of TPS48120-Q1.
  5. Disconnect the load
TPS4812Q1EVM I2T based Overcurrent Response of TPS4812Q1EVM for 6A to 16A Load StepFigure 3-4 I2T based Overcurrent Response of TPS4812Q1EVM for 6A to 16A Load Step
TPS4812Q1EVM Auto-Retry Response of TPS48120-Q1 for an I2T based Overcurrent FaultFigure 3-5 Auto-Retry Response of TPS48120-Q1 for an I2T based Overcurrent Fault
TPS4812Q1EVM Latch-off Response of TPS48120-Q1 for an I2T based Overcurrent FaultFigure 3-6 Latch-off Response of TPS48120-Q1 for an I2T based Overcurrent Fault