Off-Line Quasi-Resonant Switching Regulators
STR-X6757
STR-X6757
A.S.O. temperature deratingcoefficient
curve
STR-X6757
MOSFET A.S.O. Curve
100
80
60
40
20
0
100
10
Determined by On-Resistance
100μs
1ms
1
0.1
0.01
Apply A.S.O temperature
coefficient from the left graph to
this curve forevaluating actual
operations' safety
0
20 40 60 80 100 120
TF [℃]
Internalframe temperature
1
10
VDS[V]
Drain-to-Source Voltage
100
1000
STR-X6757
Avalanche energy derating curve
100
80
60
40
20
0
25
50
75
100
125
150
Tch [℃]
Channeltemperature
Allegro MicroSystems, Inc.
115 Northeast Cutoff
4
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
