TIDT222 April   2021

 

  1. 1Description
  2. 2Test Prerequisites
    1. 2.1 Voltage and Current Requirements
    2. 2.2 Required Equipment
    3. 2.3 Considerations
    4. 2.4 Dimensions
    5. 2.5 Test Setup
  3. 3Testing and Results
    1. 3.1 Efficiency and Loss Graphs
    2. 3.2 Efficiency Data
    3. 3.3 Thermal Images
    4. 3.4 Bode Plots
  4. 4Waveforms
    1. 4.1 Switching
    2. 4.2 Output Voltage Ripple
    3. 4.3 Load Transients
    4. 4.4 Start-up Sequence

3.3 Thermal Images

The following thermal image shows operation at 12-V input and 1.2- V at 100-A output, with no airflow. The board ran for 20 minutes with these conditions before the thermal image was taken.

GUID-20210105-CA0I-WC52-L3MS-8TKKGCTMB4LG-low.jpgFigure 3-3 100-A Output, No Airflow - Side With Converters
GUID-20210105-CA0I-FPDK-6PRL-HB6LVT4SF6R2-low.jpgFigure 3-4 100-A Output, No Airflow - Side With Inductors
GUID-20210105-CA0I-Q7RX-5J4P-MQV2SG9RPRXS-low.jpg Figure 3-5 160-A Output, 1–2 mps Airflow - Side With Converters
GUID-20210105-CA0I-DPRZ-HFKN-4Z32HQP82FVV-low.jpg Figure 3-6 160-A Output, 1–2 mps Airflow - Side With Inductors