STR-X6759N Off-Line Quasi-Resonant Switching Regulators
STR-X6759N
MOSFET Ta-PD1 Curve
60
50 PD1=46[W]
With infinite heatsink
40
30
20
Without heatsink
10
PD1=2.8[W]
0
0 20 40 60 80 100 120 140 160
Ta [℃]
Ambient temperature
STR-X6759N
MIC TF-PD2 C urve
1
0.8
0.6
0.4
0.2
0
0 20 40 60 80 100 120 140
TF[℃]
Internalframe temperature
STR-X6759N
Transient thermalresistance curve
1
0.1
0.01
0.001
1μ
100 m
t[sec]
Tim e
Allegro MicroSystems, Inc.
5
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com