TIDT287 August   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Sequence
    5. 3.5 Output Voltage Step

3.4 Start-Up Sequence

Start-up behavior is shown in the following figures.

GUID-20220815-SS0I-RRHM-TJ2K-ZHR0LXMC8BNN-low.pngFigure 3-23 Start-up, 40-V, 0-A Output, 24-V Input, 5 ms/div, CH2: Output Voltage, 10 V/div, CH4: Input Voltage, 5 V/div
GUID-20220815-SS0I-F8NC-LZFH-BZS3BDSM6R1Z-low.pngFigure 3-25 Start-up, 19-V, 0-A Output, 24-V Input, 5 ms/div, CH2: Output Voltage, 5 V/div, CH4: Input Voltage, 5 V/div
GUID-20220815-SS0I-GZ7S-6GLZ-X10TVBX2D9K5-low.pngFigure 3-24 Start-up, 40-V, 2.5-A Output, 24-V Input, 5 ms/div, CH2: Output Voltage, 10 V/div, CH4: Input Voltage, 5 V/div
GUID-20220815-SS0I-7WDF-LL5F-8P11GKHWQQJN-low.pngFigure 3-26 Start-up, 19-V, 4-A Output, 24-V Input, 5 ms/div, CH2: Output Voltage, 5 V/div, CH4: Input Voltage, 5 V/div