STR-X6768N Off-Line Quasi-Resonant Switching Regulators
STR-X6768N
MOSFET Ta-PD1 Curve
60
50 PD1=46[W]
With infinite heatsink
40
30
20
Without hea tsink
10 PD1=2.8[W]
0
0 20 40 60 80 100 120 140
Ta〔℃〕
Ambient temperature
STR-X6768N
MIC TF-PD2 Curve
1
0.8
0.6
0.4
0.2
0
0 20 40 60 80 100 120 140
TF〔℃〕
Internal frame temperature
1
0.1
0.01
0.001
1μ
STR-X6768N
Transient thermal resistance curve
t〔sec〕
Time
100 m
STR-X6768N
SANKEN ELECTRIC CO., LTD.
5