STR-X6737 Allegro Microsystems Inc, STR-X6737 Datasheet - Page 5

• Manufacturer Part Number: STR-X6737
• Description: SMPS Primary Switcher, (Bottom Skip Quosi-resonance Switching Type)
• Manufacturer: Allegro Microsystems Inc

STR-X6737
50
45
40
35
30
25
20
15
10
5
0
0.001
0.01
0
0.1
P
1.0E-06
1
MOSFET Ta-P
D1
20 40 60 80 100 120 140
=2.8[W]
Without heatsink
Ambient temperature
STR-X6737
With infinite heatsink
Ta[℃]
D1
Curve
Off-Line Quasi-Resonant Switching Regulators
1.0E-05
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Transient thermal resistance curve
1.0E-04
STR-X6737
t [sec]
time
1.0E-03
0.8
0.6
0.4
0.2
1
0
0
20
1.0E-02
MIC T
Internal frame temperature
STR-X6737
40
F
-P
D2
60
T
Curve
F
〔 ℃〕
80
100 120 140
1.0E-01
5