TIDT408A December   2024  – May 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 No Load Power Consumption
    4. 2.4 Efficiency Data
    5. 2.5 Thermal Images
    6. 2.6 EMI
  7. 3Waveforms
    1. 3.1 Start-Up and Shut Down Waveforms
    2. 3.2 Voltage Transition
    3. 3.3 Switching Waveform
      1. 3.3.1 Voltage Stress at Normal Operation
      2. 3.3.2 Voltage Stress at Start-Up
      3. 3.3.3 VCC Self-Bias Voltage
      4. 3.3.4 X Cap Discharge
    4. 3.4 Ripple and Noise
    5. 3.5 Load Transients
    6. 3.6 Overcurrent Protection
    7. 3.7 Short-Circuit Protection
    8. 3.8 Overvoltage Protection at AC-DC Output

3.1 Start-Up and Shut Down Waveforms

The following waveforms show the start-up and shut down waveform at 90VAC, 264VAC input.

CH1: VAC Input, CH2:VOUT, CH3: Vout_ACDC, CH4: Iout

PMP41117 90VAC, Start-upFigure 3-1 90VAC, Start-up
PMP41117 264VAC, Start-UpFigure 3-3 264VAC, Start-Up
PMP41117 90VAC, Shut DownFigure 3-2 90VAC, Shut Down
PMP41117 264VAC, Shut DownFigure 3-4 264VAC, Shut Down