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

3.3.1 Voltage Stress at Normal Operation

Figure 3-28 and Figure 3-29 show the voltage stress on primary and secondary switches at 264VAC input, full load.

PMP41117 Vds_pri,264VAC, Full Load, Vds Voltage Stress 640VFigure 3-28 Vds_pri,264VAC, Full Load, Vds Voltage Stress 640V
PMP41117 Vds_sr, 264VAC, Full Load, Vds Voltage Stress 74.8VFigure 3-29 Vds_sr, 264VAC, Full Load, Vds Voltage Stress 74.8V