STR-X6737
Off-Line Quasi-Resonant Switching Regulators
STR-X6737
A.S.O. temperature deratingcoefficient Curve
100
80
60
40
20
0
0 20 40 60 80 100 120
TF [℃]
Internalframe temperature
STR-X6737
MOSFET A.S.O. Curve
Ta=25℃ Single pluse
100
Determuned by On-Resistance
100μs
10
1ms
1
Apply A.S.O temerature
0.1 coefficinet from the left graph to
this curve for evaluating actual
operation's safety
0.01
1
10
100
VDS[V]
Drain-to-Source Voltage
STR-X6737
Ava la nche energy dera ting curve
1000
100
80
60
40
20
0
25
50 75 100 125 150
Tch [℃]
Channel temperature
Allegro MicroSystems, Inc.
4
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com