str-s6401 Allegro MicroSystems, Inc., str-s6401 Datasheet - Page 2

• Manufacturer Part Number: str-s6401
• Description: Off-line Switching Regulators ? With Power Mosfet Outpu
• Manufacturer: Allegro MicroSystems, Inc.

FUNCTIONAL BLOCK DIAGRAM
ALLOWABLE PACKAGE POWER DISSIPATION
STR-S6401
OFF-LINE
SWITCHING REGULATORS
40
20
60
0
3.2 W
62 W
20
UVLO
START
SOFT
V IN
REF.
7
5
FREE AIR
MOUNTING SURFACE
TEMPERATURE
AND
60
GROUND
TEMPERATURE in C
SIGNAL
R toff
8
STR-S6401F
RECOMMENDED MAX.
FRAME TEMP. = +100 C
R ton
FDBK
9
OSC.
100
LIMITED BY FRAME
TEMP. = +125 C MAX.
+
PWM
140
W
Copyright © 1994, Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
Dwg. GK-003
R
LATCH
S
100
3.0
1.0
0.3
0.1
30
10
Q
3.0
GROUND
POWER
LIMITED
BY r DS(on)
4
NO HEAT SINK
NATURAL COOLING
T
A
MAXIMUM SAFE OPERATING AREA
= +25 C
10
+
DRAIN-TO-SOURCE VOLTAGE in VOLTS
0.2 V
GATE
3
30
1
2
6
100
SOURCE
DRAIN
OVER-CURRENT
PROTECTION
Dwg. FK-003
300
™
Dwg. GK-004