STR-S6525
OFF-LINE
SWITCHING REGULATOR
FUNCTIONAL BLOCK DIAGRAM
V IN
5
UVLO
OVER-VOLT.
PROTECT
SOFT
START
2 kΩ
7
REF.
R
FAULT
LATCH
S
Q
1
2
DRAIN
SOURCE
TSD
OSC.
TRIGGER
0.01
µF
1 kΩ
Rtoff
Rton
0.01
µF
OVER-CURRENT
PROTECTION
FAULT-LATCH
TRIGGER
8
+
0.75 V
1000 pF
9
20 kΩ
3
COMMON
6
FDBK
4
SYNC
Dwg. FK-002-1
ALLOWABLE PACKAGE POWER DISSIPATION
60
100
MAXIMUM SAFE OPERATING AREA
ALLOWABLE PACKAGE POWER DISSIPATION in WATTS
54 W
MOUNTING SURFACE
TEMPERATURE
t
30
LIMITED
BY r DS(on)
10
DRAIN CURRENT in AMPERES
40
RECOMMENDED MAX.
FRAME TEMP. = +100°C
tw
=1
LIMITED BY FRAME
TEMP. = +125°C MAX.
20
1.0
NO HEAT SINK
NATURAL COOLING
TA = +25°C
HE
AT
SIN
K
FREE AIR
3.2 W
0
20
60
100
TEMPERATURE in
°C
140
Dwg. GK-003-2
0.3
0.1
3.0
10
30
100
300
1000
Dwg. GK-004-4
DRAIN-TO-SOURCE VOLTAGE in VOLTS
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1994 Allegro MicroSystems, Inc.
™
LIMITED BY V DS max
3.0
ms
SIN
GL
EP
UL
SE
w
=
0.1
ms
SIN
GL
EP
UL
SE
IN
FIN
ITE
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
