TIDT311 October   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Load Voltage Regulation
    3. 2.3 Efficiency Data
    4. 2.4 Thermal Images
    5. 2.5 Bode Plots
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Sequence

Efficiency Data

Efficiency data is shown in the following table.

Table 2-1 Efficiency Test Data
POE Input
Voltage (V)
PoE Input
Current (A)
DC/DC Input
Voltage (V)
Output Voltage (V) Output Current (A) PoE Efficiency DC/DC Efficiency

48

0.082

47.555

24.218

0.000

0.0%

0.0%

48

0.181

47.452

24.215

0.199

55.5%

56.1%

48

0.283

47.349

24.212

0.400

71.3%

72.3%

48

0.385

47.250

24.209

0.600

78.6%

79.8%

48

0.488

47.153

24.207

0.800

82.7%

84.2%

48

0.592

47.057

24.204

1.000

85.2%

86.9%

48

0.698

46.971

24.201

1.200

86.7%

88.6%

48

0.804

46.891

24.198

1.400

87.8%

89.9%

48

0.911

46.796

24.194

1.599

88.5%

90.7%

48

1.019

46.712

24.191

1.800

89.0%

91.5%

48

1.128

46.624

24.187

2.001

89.4%

92.0%

48

1.237

46.539

24.183

2.200

89.6%

92.4%

48

1.348

46.454

24.179

2.400

89.7%

92.7%

48

1.402

46.422

24.175

2.500

89.8%

92.9%