TIDT222 April   2021

 

  1. 1Description
  2. 2Test Prerequisites
    1. 2.1 Voltage and Current Requirements
    2. 2.2 Required Equipment
    3. 2.3 Considerations
    4. 2.4 Dimensions
    5. 2.5 Test Setup
  3. 3Testing and Results
    1. 3.1 Efficiency and Loss Graphs
    2. 3.2 Efficiency Data
    3. 3.3 Thermal Images
    4. 3.4 Bode Plots
  4. 4Waveforms
    1. 4.1 Switching
    2. 4.2 Output Voltage Ripple
    3. 4.3 Load Transients
    4. 4.4 Start-up Sequence

3.2 Efficiency Data

Efficiency data is shown in the following table with 1.2-V output model t1, 12 VIN.

Table 3-1 12 VIN: 1.2 V, 0 A to 138 A With Approximately 1–2 mps Airflow
VIN (V) IIN (A) VOUT IOUT (A) Eff (%) Loss (W)

11.999

0.186

1.200

0.000

0.000

2.234

11.999

0.717

1.200

5.234

73.033

2.320

11.999

1.233

1.200

10.240

83.115

2.497

11.999

1.752

1.200

15.241

87.031

2.726

11.999

2.275

1.200

20.241

89.010

3.000

11.999

2.801

1.200

25.250

90.199

3.294

11.999

3.328

1.201

30.253

90.954

3.612

11.999

3.857

1.201

35.255

91.463

3.951

11.999

4.388

1.201

40.260

91.807

4.314

11.999

4.922

1.201

45.265

92.038

4.702

11.999

5.457

1.201

50.271

92.181

5.120

11.999

5.995

1.201

55.273

92.261

5.567

11.999

6.537

1.201

60.280

92.286

6.050

11.999

7.081

1.201

65.292

92.273

6.565

11.999

7.628

1.201

70.296

92.220

7.121

11.999

8.179

1.201

75.299

92.134

7.720

11.999

8.733

1.201

80.306

92.028

8.353

11.999

9.291

1.201

85.312

91.904

9.024

11.999

9.851

1.201

90.318

91.763

9.736

11.999

10.415

1.201

95.326

91.608

10.487

11.999

10.983

1.201

100.335

91.433

11.290

11.999

11.555

1.201

105.340

91.246

12.137

11.999

12.129

1.201

110.348

91.052

13.023

11.999

12.710

1.201

115.353

90.847

13.959

11.999

13.294

1.201

120.362

90.632

14.943

11.999

13.880

1.201

125.369

90.410

15.970

11.999

14.471

1.201

130.371

90.183

17.046

11.999

15.066

1.201

135.375

89.944

18.179

11.999

15.426

1.201

138.383

89.794

18.891

11.999

15.674

1.201

140.354

89.633

19.497

11.999

16.280

1.201

145.358

89.374

20.756

11.999

16.889

1.201

150.358

89.116

22.055

11.999

17.504

1.201

155.372

88.846

23.426

11.999

18.125

1.201

160.383

88.577

24.843

Efficiency data is shown in the following table with 1.2-V output model t1, 8 VIN.

Table 3-2 8 VIN: 1.2 V, 0 A to 138 A With Approximately 1–2 mps Airflow
VIN (V) IIN (A) VOUT IOUT (A) Eff (%) Loss (W)

7.994

0.204

1.200

0.000

0.000

1.634

7.994

0.999

1.200

5.250

78.936

1.682

7.994

1.768

1.200

10.252

87.082

1.825

7.994

2.542

1.200

15.246

90.061

2.020

7.994

3.323

1.200

20.246

91.491

2.261

7.994

4.108

1.200

25.252

92.306

2.527

7.994

4.895

1.201

30.253

92.810

2.814

7.994

5.686

1.201

35.256

93.111

3.132

7.994

6.481

1.201

40.262

93.292

3.475

7.994

7.282

1.201

45.266

93.360

3.865

7.994

8.087

1.201

50.271

93.361

4.292

7.994

8.896

1.201

55.273

93.313

4.756

7.994

9.712

1.201

60.276

93.217

5.267

7.994

10.534

1.201

65.284

93.091

5.818

7.994

11.359

1.201

70.291

92.946

6.406

7.994

12.191

1.201

75.296

92.776

7.040

7.994

13.028

1.201

80.305

92.590

7.718

7.994

13.871

1.201

85.312

92.386

8.444

7.994

14.720

1.201

90.320

92.174

9.209

7.994

15.575

1.201

95.325

91.942

10.032

7.994

16.436

1.201

100.334

91.706

10.898

7.994

17.303

1.201

105.339

91.458

11.815

7.994

18.176

1.201

110.345

91.200

12.787

7.994

19.057

1.201

115.354

90.941

13.802

7.994

19.944

1.201

120.364

90.665

14.883

7.994

20.839

1.201

125.372

90.385

16.019

7.994

21.740

1.201

130.377

90.099

17.207

7.994

22.648

1.201

135.387

89.811

18.447

7.994

23.197

1.201

138.392

89.625

19.239

7.994

23.570

1.201

140.351

89.465

19.850

7.994

24.495

1.201

145.358

89.156

21.234

7.994

25.426

1.201

150.362

88.851

22.661

7.994

26.368

1.201

155.372

88.527

24.185

7.994

27.319

1.201

160.380

88.206

25.757

Efficiency data is shown in the following table with 1.2-V output model t1, 6 VIN.

Table 3-3 6 VIN: 1.2 V, 0 A to 138 A With Approximately 1–2 mps Airflow
VIN (V) IIN (A) VOUT IOUT (A) Eff (%) Loss (W)

5.999

0.231

1.200

0.000

0.000

1.384

5.999

1.287

1.200

5.255

81.698

1.413

5.999

2.309

1.200

10.254

88.853

1.544

5.999

3.339

1.200

15.249

91.372

1.728

5.999

4.377

1.200

20.249

92.553

1.956

5.999

5.422

1.200

25.254

93.205

2.210

5.999

6.471

1.201

30.255

93.562

2.499

5.999

7.527

1.201

35.258

93.743

2.825

5.999

8.590

1.201

40.261

93.798

3.196

5.999

9.660

1.201

45.266

93.777

3.607

5.999

10.738

1.201

50.270

93.697

4.060

5.999

11.823

1.201

55.275

93.572

4.559

5.999

12.915

1.201

60.283

93.419

5.099

5.999

14.017

1.201

65.288

93.225

5.697

5.999

15.126

1.201

70.296

93.019

6.335

5.999

16.243

1.201

75.297

92.789

7.027

5.999

17.369

1.201

80.306

92.556

7.756

5.999

18.502

1.201

85.314

92.303

8.543

5.999

19.645

1.201

90.320

92.033

9.389

5.999

20.795

1.201

95.327

91.760

10.280

5.999

21.956

1.201

100.337

91.482

11.220

5.999

23.126

1.201

105.344

91.188

12.226

5.999

24.304

1.201

110.348

90.890

13.283

5.999

25.491

1.201

115.357

90.588

14.394

5.999

26.692

1.201

120.368

90.280

15.564

5.999

27.902

1.201

125.374

89.958

16.809

5.999

29.121

1.201

130.380

89.633

18.111

5.999

30.351

1.201

135.388

89.306

19.472

5.999

31.098

1.201

138.393

89.094

20.347

5.999

31.602

1.201

140.353

88.915

21.016

5.999

32.858

1.201

145.359

88.564

22.542

5.999

34.126

1.201

150.361

88.210

24.137

5.999

35.407

1.201

155.367

87.852

25.805

5.999

36.702

1.201

160.378

87.479

27.568