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

6.2 Efficiency Result of the LLC Board with Pre-regulator on Board

Table 6-2 Efficiency Test Result (VIN is applied on P2 terminal, connection made from J1 to J3, or R23 in place, and connection made from J2 to J4)
VIN (V) IIN (mA) VOUT1 (V) IOUT1 (mA) VOUT2 (V) IOUT2 (mA) Efficiency (%)

12.082

82.40

18.129

5.087

-4.986

-5.003

11.77

12.042

139.50

18.121

15.604

-4.980

-15.389

21.39

12.030

163.30

18.120

25.721

-4.967

-25.260

30.11

12.039

179.10

18.122

35.330

-4.963

-35.160

37.79

12.023

200.00

18.124

45.740

-4.969

-45.480

43.87

12.042

220.60

18.124

55.76

-4.971

-55.310

48.39

12.028

239.90

18.129

65.570

-4.976

-65.150

52.43

12.053

258.40

18.133

75.58

-4.988

-75.380

56.08

12.034

277.20

18.137

85.690

-4.989

-85.240

59.29