Datasheet

Thermal measurements AN4164
26/38 Doc ID 023660 Rev 1
8 Thermal measurements
A thermal analysis of the demonstration board in full load condition at T
AMB
= 25 °C, both
with and without the self-biasing function, has been performed using an IR camera.
The results are shown in the following figures. When the self-biasing function is used the
VIPER06 temperature is higher, due to the power dissipated by the HVstartup generator.
Figure 39. Thermal measurement at V
IN
= 90 V
AC
, full load, IC externally biased
Figure 40. Thermal measurement at V
IN
= 115 V
AC
, full load, IC externally biased
AM13343v1
AM13344v1