TIDT394 May   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 Images
    4. 2.4 Bode Plots
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Voltage Ripple
    3. 3.3 Short-Circuit Protection
    4. 3.4 Load Transients
    5. 3.5 Start-up Sequence
    6. 3.6 Current Monitor Output

3.5 Start-up Sequence

Figure 3-7 and Figure 3-8 show start-up behavior for PMP23389. The power supply was enabled using the ENABLE signal or by shorting TP8 to TP9 on the board.

PMP23389 12V Input, 5.1V Output, No Load; CH1: Output Voltage, 1V/divFigure 3-7 12V Input, 5.1V Output, No Load; CH1: Output Voltage, 1V/div
PMP23389 12V Input, 5.1V Output, 15A Maximum Load; CH1: Output Voltage, 1V/divFigure 3-8 12V Input, 5.1V Output, 15A Maximum Load; CH1: Output Voltage, 1V/div