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A5366CA Datasheet

  • A5366CA

  • Photoelectric Smoke Detector with Interconnect and Timer

  • 13頁(yè)

  • SENSITRON

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A5366
Photoelectric Smoke Detector
with Interconnect and Timer
Features and Benefits
鈻?/div>
Low average standby current for long battery life
鈻?/div>
Interconnect up to 50 detectors
鈻?/div>
Piezoelectric horn driver
鈻?/div>
Low battery detection (all internal)
鈻?/div>
Chamber sensitivity test and alarm
鈻?/div>
Power-on reset (POR)
鈻?/div>
Internal timer and control for reduced sensitivity mode
鈻?/div>
Built-in circuits to reduce false triggering
鈻?/div>
6 to 12 V operating range
鈻?/div>
ESD protection circuitry on all pins
鈻?/div>
Temporal Horn Pattern, per UL217, NFPA72, and ISO8201
鈻?/div>
UL Recognized for UL217 applications, per file #S2113
Description
The A5366 is a low-current BiCMOS circuit providing all of
the required features for a photoelectric type smoke detector.
This device can be used with an infrared photoelectric chamber
to sense scattered light from smoke particles. A networking
capability allows as many as 50 units to be interconnected so
that if any unit senses smoke all units will sound an alarm.
Special features are incorporated in the design to facilitate
calibration and testing of the finished detector. The device is
recognized by Underwriters Laboratories for use in smoke
alarms that comply with Standard UL217.
A variable-gain photoamplifier can be directly interfaced to
an infrared emitter-detector pair. The amplifier gain levels are
determined by two external capacitors and are internally selected
depending on the operating mode. Low gain is selected during
standby and timer modes. During a local alarm, this low gain
is increased (internally) by approximately 10% to reduce false
triggering. High gain is used during pushbutton test and to
periodically monitor the chamber sensitivity during standby.
The internal oscillator and timing circuitry keep standby power
to a minimum by sensing for smoke for only 100
渭s
every 10 s.
A special three-stage鈥搒peedup sensing scheme is incorporated
to minimize the time to an audible alarm and also to reduce
false triggering. Chamber sensitivity is periodically monitored
and two consecutive cycles of degraded sensitivity are required
for a warning signal (chirp) to occur.
The A5366 is supplied in a 16-pin dual in-line plastic package
(suffix A), and for surface mount, a 16-pin SOICW (suffix
LW). The lead (Pb) free versions (suffix 鈥揟) have 100% matte-
tin leadframe plating. The devices are rated for continuous
operation over the temperature range of 鈥?5擄C to 75擄C.
Packages:
16-pin DIP
(Package A)
16-pin SOICW
(Package LW)
Not to scale
Typical Application Diagram
V
DD
0.047
渭F
Rx1
A
8.2 k惟
5 k惟
Rx2
4.7 k惟
4700 pF
560
惟
1
2
9V
A5366
TEST 16
Push-to-Test
HUSH
VSS
TIMING RES
1 k惟
Smoke
Chamber
22
惟
100
渭F
220
惟
8
6
7
IRED
I/O
HORN1
OSC CAP
LED
15
14
13
100 k惟
12
11
220 k惟 C
1000 pF
C
1.5 M惟 C
330
惟
B
1500 pF
10 M惟
Red LED
A
Connect to allow timer mode
("hush") operation
22
渭F
C1
C2
200 k惟
3
DETECT
4 STROBE
5
VDD
B Connect HUSH to VSS
to disable timer mode
C Value of component can vary,
based on the piezoelectric horn used
10
FEEDBACK
HORN2 9
Piezo Horn
To / from
other units
26110.11-DS, Rev. E

A5366CA 產(chǎn)品屬性

  • 25

  • 集成電路 (IC)

  • 接口 - 傳感器和探測(cè)器接口

  • -

  • 煙霧探測(cè)器

  • 光電

  • 電壓

  • -

  • 12mA

  • 通孔

  • 16-DIP（0.300"，7.62mm）

  • 16-DIP

  • 管件

A5366CA相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
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    描述
    廠(chǎng)商
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