SLUUCE8A February   2021  – October 2021 UCC25800-Q1

 

  1.   Trademarks
  2. 1 Description
  3. 2 Electrical Performance Specifications
  4. 3 Schematic Diagram
  5. 4 Description - How to Use
    1. 4.1 Typical Applications
    2. 4.2 Using the EVM with on-board Pre-regulator on Board
    3. 4.3 Using the EVM with an External DC Voltage Source
  6. 5 Test Setup
    1. 5.1 Test Setup Requirements
    2. 5.2 Test Setup Diagram
    3. 5.3 Test Points and Input / Output Terminals
  7. 6 Performance Data and Typical Characteristic Curves
    1. 6.1  Efficiency Result of the LLC Board with External DC Input Voltage
    2. 6.2  Efficiency Result of the LLC Board with Pre-regulator on Board
    3. 6.3  Efficiency Typical Results
    4. 6.4  Output Characteristics
    5. 6.5  Output Voltage Turn-on at Start Up
    6. 6.6  Output Ripple Voltage
    7. 6.7  Frequency Synchronized to External Signal
    8. 6.8  DIS-pin Enable and Dis-Enable
    9. 6.9  Load Transient Response
    10. 6.10 Switch-node Voltage and Current
    11. 6.11 Over-Current Limit and FLT-pin
    12. 6.12 CISPR-25 Class-5 Conducted EMI Test Result - Pass
    13. 6.13 Thermal Images at Full Load
  8. 7 Transformer Details
  9. 8 EVM Assembly and Layout
  10. 9 List of Materials
  11. 10Revision History

5.1 Test Setup Requirements

Voltage Source: DC voltage source capable of handling 5 W power level with voltage range 5 to 30 V, and current capability not less than 1.0 A.

Volt-meter: Digital voltage meters

Current-meter: Digital current meters

Oscilloscope:

  • 4-Channel, 500 MHz bandwidth.

Output Load: dual resistive or electronic load capable of handling 3 W at 20 V.

Recommended Wire Gauge: Insulated 20 AWG to 22 AWG.

GUID-706BAA99-FA97-4077-8720-EA7CB18BE3DC-low.png
WARNING:

  • If you are not trained on properly handling and testing power electronics please do not test this evaluation module.
  • Read this user's guide thoroughly before making test.