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

6.1 Efficiency Result of the LLC Board with External DC Input Voltage

Table 6-1 Efficiency Test Result VIN is applied on P1 terminal, or on J1 and J2. No connection from J1 to J3, and R23 removed
VIN (V) IIN (mA) VOUT1 (V) IOUT1 (mA) VOUT2(V) IOUT1 (mA)

Efficiency (%)

15.686

34.93

18.122

5.883

-4.987

-5.124

24.12

15.598

56.32

18.122

15.605

-4.978

-15.193

40.80

15.686

71.56

18.123

25.852

-4.969

-25.300

52.90

15.666

78.94

18.127

35.630

-4.969

-35.160

66.35

15.644

89.19

18.136

45.940

-4.990

-45.050

75.82

15.605

105.05

18.137

55.94

-4.990

-55.210

78.70

15.717

121.27

18.136

65.67

-4.990

-65.330

79.59

15.686

137.00

18.138

75.58

-4.990

-75.100

81.23

15.654

153.11

18.140

85.69

-4.990

-85.250

82.60