STR-S5703 데이터 시트보기 (PDF) - Allegro MicroSystems
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STR-S5703 Datasheet PDF : 8 Pages
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STR-S5703
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATOR
FUNCTIONAL BLOCK DIAGRAM
V IN
9
INHIBIT
6
SENSE 7
UVLO
REF.
OVER-VOLT.
PROTECT
R
FAULT
LATCH
S
Q
PROPORTIONAL
DRIVE
1500 pF
TSD
Rton
3300 pF
OSC.
+
+
Rtoff
+
+
0.75 V
1.4 V
-1 V
5.1 V
1 kΩ
8 DRIVE
4 SINK
3 BASE
1 COLLECTOR
2 COMMON
5
OVER-CURRENT
PROTECTION
Dwg. FK-001-1
ALLOWABLE PACKAGE POWER DISSIPATION
MAXIMUM SAFE OPERATING AREA
60
54 W
40
MOUNTING SURFACE
TEMPERATURE
RECOMMENDED MAX.
FRAME TEMP. = +100°C
LIMITED BY FRAME
TEMP. = +125°C MAX.
20
3.2 W
0
20
FREE AIR
60
100
TEMPERATURE in °C
140
Dwg. GK-003-2
30
10
5.0
3.0
L = 6 mH
IB1 = 2.5 A
IB2 = 0.8 A
ton = 100 µs
dc < 1%
1.0
0.5
0.3
0
100
200
300
400
500
600
700
COLLECTOR-EMITTER VOLTAGE in VOLTS
Dwg. GK-002-2A
™
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1994 Allegro MicroSystems, Inc.
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