TIDT354 November   2023

 

  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
    5. 1.5 Test Setup
  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 Load Transients
    3. 3.3 Start-Up and Shutdown Sequences

2.3 Thermal Images

The thermal image presented in Figure 3-11 was taken with a load of 60 A, 24 VIN, and with a fan blowing on the device. Both low-side FETs reached a temperature of 72°C, with the ambient room temperature at 21°C to 23°C.

GUID-20230825-SS0I-Q5ZS-TZQJ-PQ41K93G3M29-low.jpg Figure 2-3 24-VIN Thermal Image

The thermal image displayed in Figure 2-4 was taken with a load of 60 A, 48 VIN, and with a fan. Both low-side FETs reached a temperature of 96°C, with the ambient room temperature at 21°C to 23°C.

GUID-20230825-SS0I-GBRG-RQ6T-SZVRF2H4WNCD-low.jpg Figure 2-4 48-VIN Thermal Image