TIDT446A June   2025  – July 2025

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Dimensions
    4. 1.4 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Voltage Regulation
    3. 2.3 Efficiency Data
    4. 2.4 Thermal Images
    5. 2.5 EMI
  7. 3Waveforms
    1. 3.1 AC Brown In and Brown Out
    2. 3.2 AC Start-Up and Shut-Down
    3. 3.3 Voltage Transition
    4. 3.4 Switching
    5. 3.5 Output Voltage Ripple
    6. 3.6 Load Transients
    7. 3.7 Short-Circuit Protection
    8. 3.8 Feedback Loop Open Protection

2.3 Efficiency Data

Efficiency data is shown in Table 2-1 through Table 2-4.

Table 2-1 Efficiency Data
VIN
(V)		 PIN
(W		 VOUT
(V)		 IOUT
(A)

Load Percentage (%)

 POUT
(W)		 Efficiency
(%)

115

1.78

5.153

0.302

10

1.556

87.42

115

4.31

5.154

0.751

25

3.875

89.91

115

8.54

5.158

1.501

50

7.748

90.73

115

12.8

5.162

2.252

75

11.627

90.84

115

17.09

5.166

3.002

100

15.507

90.74

230

1.91

5.152

0.302

10

1.556

81.47

230

4.54

5.155

0.751

25

3.875

85.35

230

8.75

5.159

1.501

50

7.749

88.56

230

12.91

5.162

2.252

75

11.629

90.08

230

17.16

5.165

3.002

100

15.5

90.33

115

3.09

9.054

0.302

10

2.735

88.51

115

7.47

9.056

0.751

25

6.808

91.14

115

14.71

9.058

1.501

50

13.604

92.48

115

21.99

9.063

2.251

75

20.405

92.79

115

29.34

9.064

3.002

100

27.215

92.76

230

3.27

9.052

0.302

10

2.735

83.64

230

7.82

9.055

0.751

25

6.807

87.05

230

14.72

9.058

1.501

50

13.602

92.40

230

21.95

9.059

2.251

75

20.402

92.95

230

29.22

9.061

3.002

100

27.206

93.11

115

5.27

15.07

0.302

10

4.561

86.55

115

12.53

15.056

0.751

25

11.319

90.34

115

24.3

15.034

1.502

50

22.583

92.93

115

36.19

15.012

2.252

75

33.82

93.45

115

48.11

14.992

3.002

100

45.009

93.55

230

5.52

15.069

0.302

10

4.555

82.52

230

12.67

15.055

0.751

25

11.317

89.32

230

24.5

15.031

1.502

50

22.583

92.18

230

36.28

15.011

2.252

75

33.813

93.20

230

48.07

14.99

3.002

100

45.011

93.64

115

7.57

20.034

0.327

10

6.552

86.55

115

18.00

20.019

0.817

25

16.358

90.88

115

35.16

19.996

1.627

50

32.54

92.55

115

51.99

19.968

2.438

75

48.688

93.65

115

69.39

19.943

3.254

100

64.89

93.51

230

7.81

20.041

0.321

10

6.453

82.62

230

18.13

20.025

0.812

25

16.269

89.74

230

35.25

20.01

1.622

50

32.453

92.07

230

52.14

19.975

2.440

75

48.735

93.74

230

69.19

19.953

3.252

100

64.911

93.82
Table 2-2 20V, 65W, Full-Load Efficiency Across AC Line

VAC(V)

90

115

230

264

Efficiency(%)

92.41

93.51

93.82

93.76

Power Loss(W)

5.33

4.50

4.28

4.32
Table 2-3 Four-Point Average Efficiency

Four-point Average Efficiency(%)

5V, 3A

9V, 3A

15V, 3A

20V, 3.25A

115VAC

90.55

92.29

92.57

92.65

230VAC

88.58

91.38

92.08

92.27

Note: Variation of ±0.3% in 4-point average efficiency and ±0.5% in 10% efficiency can be observed.

Table 2-4 No Load Power Consumption

VAC(V)

90

115

230

264

Standby Power(mW)

47

49

61

69