Device Ruggedness: Long-Term PFC (Boost)
Application Testing
600V Cascode GaN switches demonstrate stable operation over 1200
hours of continuous PFC application testing
• Measured package
Temperature is a proxy
for power dissipated:
Δ T = R
TH
x P
loss
, which
correlates to Efficiency.
• Devices are shown
stable in efficiency for
>1200 hours
40
60
80
100
120
200 400 600 800 1000 1200
Tcase (
o
C)
Time (Hours)
225 W, 120V:500V DC to DC conversion at 100 kHz
Stable efficiency (case
temperature) to >1200
hours