TIDT357 November   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Power Requirements
    1.     6
    2.     7
    3. 1.1 Power-On Sequence
    4. 1.2 Power-Off Sequence
    5. 1.3 Required Equipment
    6. 1.4 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  7. 3Waveforms
    1. 3.1 Start-Up Sequence
    2. 3.2 Shutdown Sequence
    3. 3.3 Output Voltage Ripple
    4. 3.4 Load Transients

Thermal Images

The thermal images in Figure 3-18 and Figure 2-8 show operation at 12-V input and maximum current for each output rail on the highest power AM62x processor with no airflow after the board had reached thermal equilibrium. Figure 3-18 is a thermal image when the VDD_CORE was 0.75 V with an output current of 5.7 A. Figure 2-8 shows a thermal image when VDD_CORE was 0.85 V with an output current of 6.9 A.

GUID-20230914-SS0I-FGPR-G2WX-PMG5DJBZGW3X-low.jpg Figure 2-7 Thermal Image, 12-V Input, Full Load Output With 0.75-V VDD_CORE With 5.7-A Load
GUID-20230914-SS0I-5C2K-SZD8-THHPJ9CTQHGD-low.jpg Figure 2-8 Thermal Image, 12-V Input, Full Load Output With 0.85-V VDD_CORE Output at 6.9 A