SLVUDT7 April   2026

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
    5. 1.5 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  8. 2Hardware
    1. 2.1 Additional Image
      1. 2.1.1 Using the EVM on a Load with USB-C PD Communication
      2. 2.1.2 Using the EVM on a Load Without USB-C PD Communication
  9. 3Implementation Results
    1. 3.1 Electrical Performance Specifications
    2. 3.2 Test Setup
      1. 3.2.1 Test Setup Requirements
      2. 3.2.2 Test Setup Diagram of UCG28846DREVM-151
      3. 3.2.3 Test Points
    3. 3.3 Performance Data and Typical Characteristic Curves
      1. 3.3.1  Efficiency Result of 4-Point Average at 24Vout
      2. 3.3.2  Efficiency Result of 4-Point Average on 20VOUT
      3. 3.3.3  Efficiency Result of 4-Point Average at 15VOUT
      4. 3.3.4  Efficiency Result of 4-Point Average at 12Vout
      5. 3.3.5  Efficiency Result of 4-Point Average at 9VOUT
      6. 3.3.6  Efficiency Result of 4-Point Average at 5VOUT
      7. 3.3.7  Efficiency Typical Results
      8. 3.3.8  Output Characteristics
      9. 3.3.9  Key Switching Waveforms
      10. 3.3.10 Switching Frequency versus Load
      11. 3.3.11 Output Ripple Voltage
      12. 3.3.12 Load Transient Response
      13. 3.3.13 Line Transient Response
      14. 3.3.14 Short Term Overload Operation
      15. 3.3.15 CCM operation
      16. 3.3.16 Startup Performance
      17. 3.3.17 Thermal Images at Full Load (20V/3.25A and 24V/2.71A)
      18. 3.3.18 CISPR32 Class B Conducted EMI Test Result
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Transformer Details
    4. 4.4 Bill of Materials
  11. 5Additional Information
    1.     Trademarks

3.3.17 Thermal Images at Full Load (20V/3.25A and 24V/2.71A)

This section presents the thermal images of the EVM while operating at full load at both at 20V and 24V output voltages and at different line voltages. The data was taken after a thermal soak of 30 minutes.

UCG28846DREVM-151 Top Side at 90Vac-to-24V/2.71AFigure 3-70 Top Side at 90Vac-to-24V/2.71A
UCG28846DREVM-151 Bottom Side at 90Vac-to-24V/2.71AFigure 3-71 Bottom Side at 90Vac-to-24V/2.71A
UCG28846DREVM-151 Top Side at 115Vac-to-24V/2.71AFigure 3-72 Top Side at 115Vac-to-24V/2.71A
UCG28846DREVM-151 Bottom Side at 115Vac-to-24V/2.71AFigure 3-73 Bottom Side at 115Vac-to-24V/2.71A
UCG28846DREVM-151 Top Side at 230Vac-to-24V/2.71AFigure 3-74 Top Side at 230Vac-to-24V/2.71A
UCG28846DREVM-151 Bottom Side at 230Vac-to-24V/2.71AFigure 3-75 Bottom Side at 230Vac-to-24V/2.71A
UCG28846DREVM-151 Top Side at 264Vac-to-24V/2.71AFigure 3-76 Top Side at 264Vac-to-24V/2.71A
UCG28846DREVM-151 Bottom Side at 264Vac-to-24V/2.71AFigure 3-77 Bottom Side at 264Vac-to-24V/2.71A
UCG28846DREVM-151 Top Side at 90Vac-to-20V/3.25AFigure 3-78 Top Side at 90Vac-to-20V/3.25A
UCG28846DREVM-151 Bottom Side at 90Vac-to-20V/3.25AFigure 3-79 Bottom Side at 90Vac-to-20V/3.25A
UCG28846DREVM-151 Top Side at 115Vac-to-20V/3.25AFigure 3-80 Top Side at 115Vac-to-20V/3.25A
UCG28846DREVM-151 Bottom Side at 115Vac-to-20V/3.25AFigure 3-81 Bottom Side at 115Vac-to-20V/3.25A
UCG28846DREVM-151 Top Side at 230Vac-to-20V/3.25AFigure 3-82 Top Side at 230Vac-to-20V/3.25A
UCG28846DREVM-151 Bottom Side at 230Vac-to-20V/3.25AFigure 3-83 Bottom Side at 230Vac-to-20V/3.25A
UCG28846DREVM-151 Top Side at 264Vac-to-20V/3.25AFigure 3-84 Top Side at 264Vac-to-20V/3.25A
UCG28846DREVM-151 Bottom Side at 264Vac-to-20V/3.25AFigure 3-85 Bottom Side at 264Vac-to-20V/3.25A