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5349 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 5349
部品説明 AC SMOKE DETECTOR WITH INTERCONNECT AND TIMER
メーカ Allegro MicroSystems
ロゴ Allegro MicroSystems ロゴ 



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5349 Datasheet, 5349 PDF,ピン配置, 機能
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 .

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