STR-X6768N Off-Line Quasi-Resonant Switching Regulators
STR-X6768N
A.S.O. temperature derating coefficient
curve
100
80
60
40
20
0
0 20 40 60 80 100 120
TF [℃]
Internal frame temperature
STR-X6768N
MOS FET A.S.O. Curve
Ta=25℃
Single pulse
100
10
Determined by
On-Resista nce
1 ms
0.1ms
1
Apply A.S.O temperature
coefficient from the left graph
to this curve for evaluating
actual operations' safety
0.1
10
100
VDS[V]
Drain-to-Source Voltage
1000
STR-X6768N
Avalanche energy derating curve
100
80
60
40
20
0
25 50 75 100 125 150
Tch [℃]
Channel temperature
STR-X6768N
SANKEN ELECTRIC CO., LTD.
4