Table 5-1. Thermal Results: VIN = 50 V, 1.3 A, 20 W load
Figure 5-39. Transformer temperature is 55.7°C
Transformer & PCB Temperatures:
Thermal camera measurement: 55.7 °C
Thermocouple measurement: 53.9 °C
Average temperature rise: 54.8 °C
PCB temperature: 30.6 °C
Transformer T
RISE
= 53.9 °C - 30.6 °C =
23.3 °C
Figure 5-40. Output diode temperature is 43.6°C
Figure 5-41. MOSFET temperature is 46.3°C
Performance Data
28
Using the UCC28C56EVM-066 High-Density 40-W Auxiliary Power Supply for
800-V Traction Inverters
SLUUCN1C – JUNE 2022 – REVISED DECEMBER 2022
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