TIDT403A August   2024  – December 2024

 

  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 Considerations
    4. 1.4 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Performance
    4. 2.4 Bode Plots
    5. 2.5 Light Load Efficiency Optimization
    6. 2.6 Switching Frequency Choice
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Overcurrent Protection
    4. 3.4 Load Transients
    5. 3.5 Turn ON and OFF
  8. 4References
  9.   Trademarks

Switching

Switching behavior of Secondary MOSFET is shown in Figure 3-1 through Figure 3-9. The test condition is room temperature.

CH1: Vgs of Secondary MOSFET

CH2: Vds of Secondary MOSFET

CH3: Differential voltage of transformer primary winding

CH4: Current waveform of transformer primary winding

PMP41078 Switching at 200Vin, 13.5Vout, 20A LoadFigure 3-1 Switching at 200Vin, 13.5Vout, 20A Load
PMP41078 Switching at 200Vin, 13.5Vout, 220A LoadFigure 3-3 Switching at 200Vin, 13.5Vout, 220A Load
PMP41078 Switching at 400Vin, 13.5Vout, 120A LoadFigure 3-5 Switching at 400Vin, 13.5Vout, 120A Load
PMP41078 Switching at 450Vin, 13.5Vout, 20A LoadFigure 3-7 Switching at 450Vin, 13.5Vout, 20A Load
PMP41078 Switching at 450Vin, 13.5Vout, 180A LoadFigure 3-9 Switching at 450Vin, 13.5Vout, 180A Load
PMP41078 Switching at 200Vin, 13.5Vout, 120A LoadFigure 3-2 Switching at 200Vin, 13.5Vout, 120A Load
PMP41078 Switching at 400Vin, 13.5Vout, 20A LoadFigure 3-4 Switching at 400Vin, 13.5Vout, 20A Load
PMP41078 Switching at 400Vin, 13.5Vout, 250A LoadFigure 3-6 Switching at 400Vin, 13.5Vout, 250A Load
PMP41078 Switching at 450Vin, 13.5Vout, 120A LoadFigure 3-8 Switching at 450Vin, 13.5Vout, 120A Load