TIDT435 February   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 Considerations
    4. 1.4 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
    5. 2.5 Light Load Efficiency Optimization
    6. 2.6 Midpoint Voltage Balance Control of Input Capacitors
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Turn ON and OFF
    4. 3.4 Load Transients
  8.   Trademarks

2.2 Efficiency Data

Efficiency data is shown in Table 2-1.

Table 2-1 Efficiency at 400Vin, 9Vout

Vin (V)

Iin (A)

Pin (W)

Vout (V)

Iout (A)

Pout (W)

Ploss(W)

Efficiency

400

0.484

193.6

8.97

20

179.4

14.2

92.67%

400

0.944

377.6

8.98

40

359.2

18.4

95.13%

400

1.406

562.4

8.99

60

539.4

23

95.91%

400

1.887

754.8

9.01

80

720.8

34

95.50%

400

2.371

948.4

9.01

100

901

47.4

95.00%

400

2.857

1142.8

9.01

120

1081.2

61.6

94.61%
Table 2-2 Efficiency at 400Vin, 13.5Vout

Vin (V)

Iin (A)

Pin (W)

Vout (V)

Iout (A)

Pout (W)

Ploss (W)

Efficiency

400

0.721

288.4

13.5

20

270

18.4

93.62%

400

1.401

560.4

13.52

40

540.8

19.6

96.50%

400

2.102

840.8

13.54

60

812.4

28.4

96.62%

400

2.809

1123.6

13.56

80

1084.8

38.8

96.55%

400

3.53

1412

13.56

100

1356

56

96.03%

400

4.186

1674.4

13.33

120

1599.6

74.8

95.53%
Table 2-3 Efficiency at 600Vin, 9Vout

Vin (V)

Iin (A)

Pin (W)

Vout (V)

Iout (A)

Pout (W)

Ploss (W)

Efficiency

600

0.341

204.6

8.99

20

179.8

24.8

87.88%

600

0.643

385.8

8.98

40

359.2

26.6

93.11%

600

0.955

573

8.99

60

539.4

33.6

94.14%

600

1.268

760.8

9

80

720

40.8

94.64%

600

1.589

953.4

9.01

100

901

52.4

94.50%

600

1.914

1148.4

9.01

120

1081.2

67.2

94.15%

600

2.237

1342.2

9.01

140

1261.4

80.8

93.98%

600

2.563

1537.8

9.02

160

1443.2

94.6

93.85%

600

2.891

1734.6

9.02

180

1623.6

111

93.60%

600

3.232

1939.2

9.04

200

1808

131.2

93.23%

600

3.572

2143.2

9.05

220

1991

152.2

92.90%

600

4.088

2452.8

9.06

250

2265

187.8

92.34%
Table 2-4 Efficiency at 600Vin, 13.5Vout

Vin (V)

Iin (A)

Pin (W)

Vout (V)

Iout (A)

Pout (W)

Ploss (W)

Efficiency

600

0.497

298.2

13.53

20

270.6

27.6

90.74%

600

0.957

574.2

13.55

40

542

32.2

94.39%

600

1.416

849.6

13.55

60

813

36.6

95.69%

600

1.88

1128

13.55

80

1084

44

96.10%

600

2.35

1410

13.56

100

1356

54

96.17%

600

2.823

1693.8

13.56

120

1627.2

66.6

96.07%

600

3.302

1981.2

13.56

140

1898.4

82.8

95.82%

600

3.786

2271.6

13.56

160

2169.6

102

95.51%

600

4.277

2566.2

13.57

180

2442.6

123.6

95.18%

600

4.775

2865

13.59

200

2718

147

94.87%

600

5.267

3160.2

13.57

220

2985.4

174.8

94.47%

600

6.03

3618

13.57

250

3392.5

225.5

93.77%
Table 2-5 Efficiency at 600Vin, 16Vout

Vin (V)

Iin (A)

Pin (W)

Vout (V)

Iout (A)

Pout (W)

Ploss (W)

Efficiency

600

0.585

351

16.04

20

320.8

30.2

91.40%

600

1.124

674.4

16.06

40

642.4

32

95.26%

600

1.671

1002.6

16.07

60

964.2

38.4

96.17%

600

2.215

1329

16.06

80

1284.8

44.2

96.67%

600

2.769

1661.4

16.07

100

1607

54.4

96.73%

600

3.33

1998

16.08

120

1929.6

68.4

96.58%

600

3.896

2337.6

16.06

140

2248.4

89.2

96.18%

600

4.473

2683.8

16.07

160

2571.2

112.6

95.80%

600

5.047

3028.2

16.06

180

2890.8

137.4

95.46%

600

5.629

3377.4

16.06

200

3212

165.4

95.10%

600

6.213

3727.8

16.05

220

3531

196.8

94.72%
Table 2-6 Efficiency at 800Vin, 9Vout

Vin (V)

Iin (A)

Pin (W)

Vout (V)

Iout (A)

Pout (W)

Ploss (W)

Efficiency

800

0.264

211.2

9

20

180

31.2

85.23%

800

0.5

400

9.03

40

361.2

38.8

90.30%

800

0.736

588.8

9.04

60

542.4

46.4

92.12%

800

0.976

780.8

9.05

80

724

56.8

92.73%

800

1.217

973.6

9.06

100

906

67.6

93.06%

800

1.454

1163.2

9.04

120

1084.8

78.4

93.26%

800

1.694

1355.2

9.03

140

1264.2

91

93.29%

800

1.937

1549.6

9.02

160

1443.2

106.4

93.13%

800

2.191

1752.8

9.05

180

1629

123.8

92.94%

800

2.443

1954.4

9.06

200

1812

142.4

92.71%

800

2.701

2160.8

9.06

220

1993.2

167.6

92.24%

800

3.093

2474.4

9.06

250

2265

209.4

91.54%
Table 2-7 Efficiency at 800Vin, 13.5Vout

Vin (V)

Iin (A)

Pin (W)

Vout (V)

Iout (A)

Pout (W)

Ploss (W)

Efficiency

800

0.386

308.8

13.55

20

271

37.8

87.76%

800

0.734

587.2

13.59

40

543.6

43.6

92.57%

800

1.087

869.6

13.6

60

816

53.6

93.84%

800

1.434

1147.2

13.52

80

1081.6

65.6

94.28%

800

1.786

1428.8

13.53

100

1353

75.8

94.69%

800

2.147

1717.6

13.55

120

1626

91.6

94.67%

800

2.505

2004

13.55

140

1897

107

94.66%

800

2.863

2290.4

13.54

160

2166.4

124

94.59%

800

3.242

2593.6

13.59

180

2446.2

147.4

94.32%

800

3.62

2896

13.61

200

2722

174

93.99%

800

4.004

3203.2

13.64

220

3000.8

202.4

93.68%

800

4.584

3667.2

13.64

250

3410

257.2

92.99%
Table 2-8 Efficiency at 800Vin, 16Vout

Vin(V)

Iin(A)

Pin(W)

Vout (V)

Iout (A)

Pout (W)

Ploss (W)

Efficiency

800

0.452

361.6

16.08

20

321.6

40

88.94%

800

0.871

696.8

16.1

40

644

52.8

92.42%

800

1.285

1028

16.1

60

966

62

93.97%

800

1.692

1353.6

16.08

80

1286.4

67.2

95.04%

800

2.109

1687.2

16.1

100

1610

77.2

95.42%

800

2.529

2023.2

16.11

120

1933.2

90

95.55%

800

2.95

2360

16.11

140

2255.4

104.6

95.57%

800

3.382

2705.6

16.11

160

2577.6

128

95.27%

800

3.826

3060.8

16.13

180

2903.4

157.4

94.86%

800

4.26

3408

16.12

200

3224

184

94.60%

800

4.697

3757.6

16.11

220

3544.2

213.4

94.32%