SLUUCE8A February   2021  – October 2021 UCC25800-Q1

 

  1.   Trademarks
  2. Description
  3. Electrical Performance Specifications
  4. Schematic Diagram
  5. 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. Test Setup
    1. 5.1 Test Setup Requirements
    2. 5.2 Test Setup Diagram
    3. 5.3 Test Points and Input / Output Terminals
  7. 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. Transformer Details
  9. EVM Assembly and Layout
  10. List of Materials
  11. 10Revision History

Test Points and Input / Output Terminals

Table 5-1 Input / Output Terminals and Test Point Functions

Name

Location

Desciption

J1

LLC Board

Terminal, input (+), single connection

J2

LLC Board

Terminal, input (-), single connection

J3

Pre-regulator BoardTerminal, output (+), single connection

J4

Pre-regulator BoardTerminal, output (-), single connection

P1

LLC BoardTerminal, input, two connections

P2

Pre-regulator BoardTerminal, input, two connections

P3

LLC BoardTerminal, output, three connections

TP1

LLC Board

Test point, switch-node

TP2

LLC BoardTest point, GND

TP3

LLC BoardTest point, GND

TP4

LLC BoardTest point, 24Vo

TP5

LLC BoardTest point, -Vo

TP6

LLC BoardTest point, +18Vo

TP7

LLC BoardTest point, -5Vo

TP8

LLC BoardTest point, COM

TP9

LLC BoardTest point, FLT/DIS

TP10

LLC BoardTest point, SYNC

Note: if R23 exists between J1 and J3, the connection between J1 and J3 is already made through R23.