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

3.1.1 Power-up with EN Control

Use the following instructions to verify the power up profile of TPS48120-Q1.

  1. Connect the EN/UVLO pin (TP5) to ground.

  2. Put J6 in 1-2 Position to stay in Low Power Mode.

  3. Enable the EN/UVLO to HIGH to verify the startup profile of BST, GATE and SRC.

  4. Transition to Active mode by changing J6 to 2-3 Position.

TPS4812Q1EVM Start-Up Profile of Low Power Path (LPM = LOW, VIN = 48V, No Load, CBST = 470 nF)Figure 3-2 Start-Up Profile of Low Power Path (LPM = LOW, VIN = 48V, No Load, CBST = 470 nF)
TPS4812Q1EVM State Transition From LPM to Active Mode (LPM = Low to High, Vin = 48V, No Load)Figure 3-3 State Transition From LPM to Active Mode (LPM = Low to High, Vin = 48V, No Load)