SLUUCV7 December   2023 TPS1213-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 General Configurations
      1. 2.1.1 Physical Access
      2. 2.1.2 Test Equipment and Setup
        1. 2.1.2.1 Power Supplies
        2. 2.1.2.2 Meters
        3. 2.1.2.3 Oscilloscope
        4. 2.1.2.4 Loads
  8. 3Implementation Results
    1. 3.1 Test Setup and Procedures
      1. 3.1.1 Startup in Low Power Mode
      2. 3.1.2 State Transition (LPM to Active Mode through Load Wakeup Trigger)
      3. 3.1.3 State Transition (LPM to Active Mode with LPMb Trigger)
      4. 3.1.4 Inrush Current Limit Test
      5. 3.1.5 Overload and Short Circuit 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 State Transition (LPM to Active Mode through Load Wakeup Trigger)

Use the following instructions to verify state transition of TPS12130-Q1 through load wakeup trigger

  1. Apply 12 V at the input of the EVM at no-load.
  2. Enable the EN/UVLO to HIGH.
  3. Now, gradually increase the load current from 5 mA to 200 mA and observe the transition from low power mode to Active mode at the pins of G1 (TP5), G2 (TP1), WAKE (TP13) and load current using oscilloscope.
GUID-20231128-SS0I-VMGL-7P30-VMPRMZK8VWXJ-low.pngFigure 3-3 State Transition from LPM to Active Mode (LPMb = Low, VIN= 12 V, EN/UVLO = High)
GUID-20231128-SS0I-HGWL-1GZJ-F7QLWWPFTSWB-low.pngFigure 3-4 Zoom-in View of State Transition from LPM to Active Mode (LPMb = Low, VIN= 12 V, EN/UVLO = High)
GUID-20231128-SS0I-TKW8-5GQV-1KGKSWZ88MHX-low.png Figure 3-5 As LPMb = Low, INP Has No Control on G1 Even After WAKEUP