TIDT339 june   2023

 

  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 Testing Conditions
    4. 1.4 Considerations
    5. 1.5 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs and Data
      1. 2.1.1 Efficiency Graph: Light Load Performance
      2. 2.1.2 Efficiency Graph: Available Output Power Versus Input Power
      3. 2.1.3 Efficiency Graph: Full Load Performance
      4. 2.1.4 Efficiency Data
        1.       17
        2.       18
        3.       19
    2. 2.2 Thermal Images
    3. 2.3 Static Output Voltage Variation versus Load
      1. 2.3.1 Light Load Range
      2. 2.3.2 Light to Full Load Range
    4. 2.4 EMI Measurement According to EN55022 Class-B Quasi-Peak Limits
  7. 3Waveforms
    1. 3.1 Switching on Q1 (VDS Voltage) at Full Load
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up and Shutdown Sequence
      1. 3.4.1 Start-Up Sequence
        1. 3.4.1.1 Load Current 0 A
        2. 3.4.1.2 Load Current 1.7 A
      2. 3.4.2 Shutdown Sequence

3.4 Start-Up and Shutdown Sequence

During these tests, the AC source was turned on and off. The input (230 VAC) and output voltages were measured (BWL limited to 20 MHz).
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