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PDF ( 数据手册 , 数据表 ) 5349

零件编号 5349
描述 AC SMOKE DETECTOR WITH INTERCONNECT AND TIMER
制造商 Allegro MicroSystems
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5349 数据手册, 描述, 功能
5349
AC SMOKE DETECTOR
WITH INTERCONNECT AND TIMER
TIMER START 1
I/O 2
LOGIC
16 GUARD 2
15 DETECT. IN
LOW-V SET 3
TIMER OUT 4
LED 5
OSC. &
TIMING
14 GUARD1
13
SENSITIVITY
SET
12 OSC. CAP.
+ SUPPLY 6 V DD
TIMING RES. 7
FEEDBACK 8
HORN
DRIVER
11 HORN 2
10 HORN1
VSS 9 – SUPPLY
Dwg. PC-004
The A5349CA is a low-current, CMOS circuit providing all of the
required features for an ionization-type smoke detector. A networking
capability allows as many as 125 units to be interconnected so that if
any unit senses smoke, all units will sound an alarm. In addition,
special features are incorporated to facilitate alignment and test of the
finished smoke detector. This device is designed to comply with
Underwriters Laboratories Specification UL217.
The internal oscillator and timing circuitry keeps standby power to
a minimum by powering down the device for 1.66 seconds and sensing
smoke for only 10 ms. Every 24 on/off cycles, a check is made for low
battery condition. By substituting other types of sensors, or a switch for
the ionization detector, this very-low power device can be used in
numerous other safety or security applications.
The A5349CA is supplied in a low-cost, 16-pin dual in-line plastic
package. It is rated for continuous operation over the temperature
range of 0°C to +50°C.
FEATURES
s Interconnect Up to 125 Detectors
s Piezoelectric Horn Driver
s Guard Outputs for Detector Input
s Low Supply Detection
s Power-ON Reset
s Internal Timer & Control for Reduced Sensitivity
s Built-In Hysteresis Reduces False Triggering
ABSOLUTE MAXIMUM RATINGS
(Voltages are referenced to VSS)
Supply Voltage Range,
VDD ................................ -0.5 V to +15 V
Input Voltage Range,
VIN ........................ -0.3 V to VDD + 0.3 V
Input Current, IIN ................................ 10 mA
Operating Temperature Range,
TA ..................................... 0°C to +50°C
Storage Temperature Range,
TS ................................ -55°C to +125°C
CAUTION: CMOS devices have input static
protection but are susceptible to damage when
exposed to extremely high static electrical
charges.
Always order by complete part number: A5349CA .







5349 pdf, 数据表
5349
AC SMOKE DETECTOR
with INTERCONNECT
and TIMER
16
0.280
0.240
1
0.070
0.045
0.210
MAX
0.015
MIN
0.022
0.014
16
7.11
6.10
1
1.77
1.15
5.33
MAX
0.39
MIN
0.558
0.356
Dimensions in Inches
(controlling dimensions)
9
0.014
0.008
0.430
MAX
0.300
BSC
0.775
0.735
0.100
BSC
8
0.005
MIN
0.150
0.115
Dimensions in Millimeters
(for reference only)
9
Dwg. MA-001-16A in
0.355
0.204
10.92
MAX
7.62
BSC
19.68
18.67
8
2.54 0.13
BSC MIN
3.81
2.93
Dwg. MA-001-16A mm
Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from
the detail specifications as may be required to permit improvements in the design of its products.
The information included herein is believed to be accurate and reliable. However, Allegro
MicroSystems, Inc. assumes no responsibility for its use; nor for any infringements of patents or
other rights of third parties which may result from its use.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000














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