Thermal images are shown in the following figures.

The test conditions for these images are as follows: 1-MHz switching frequency, 1-kHz sine-wave frequency, 4-Ω resistor, no heat sink, no airflow.

Figure 2-10 Top View Thermal Image at 40-V PVDD

Figure 2-12 Top View Thermal Image at 60-V PVDD

Figure 2-11 Top View Thermal Image at 50-V PVDD