TIDT234 November   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 and Power Loss Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-up Sequence
    5. 3.5 Conducted EMI Performance

Thermal Images

The thermal images in the following figures show operation at 36-V input voltage at 1.2-A load, with no airflow and ambient at room temperature. This is considered the worst-case operating condition, with the highest power loss. Thermals images were taken of both top and bottom side of the boards and were captured after the board had reached thermal equilibrium.

GUID-20210309-CA0I-T1MW-LD47-4GK2L9DW2XL8-low.pngFigure 2-9 Thermal Image, RevA Board, 36-V Input, 1.2-A Load, Top-Side
GUID-20210309-CA0I-96WZ-14R0-SPJDQK0WR5RF-low.pngFigure 2-10 Thermal Image, RevA Board, 36-V Input, 1.2-A Load, Bottom-Side
GUID-20210309-CA0I-1MNK-XCQX-W1JN730BLHQC-low.pngFigure 2-11 Thermal Image, RevB Board, 36-V Input, 1.2-A Load, Top-Side
GUID-20210309-CA0I-T7KS-2MNP-NM9XCNM7N5CW-low.pngFigure 2-12 Thermal Image, RevB Board, 36-V Input, 1.2-A Load, Bottom-Side