A5366

更新时间： 2024-11-07 12:51:19

品牌	Logo	应用领域
急速微 - ALLEGRO		光电
页数	文件大小	规格书
13页	322K
描述
The A5366 is a low-current BiCMOS circuit providing all of the required features for a photoelectric type smoke detector.

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A5366 数据手册

A5366

Photoelectric Smoke Detector

with Interconnect and Timer

Features and Benefits

Description

▪ Low average standby current for long battery life

▪ Interconnect up to 50 detectors

▪ Piezoelectric horn driver

▪ Low battery detection (all internal)

▪ Chamber sensitivity test and alarm

▪ Power-on reset (POR)

▪ Internal timer and control for reduced sensitivity mode

▪ Built-in circuits to reduce false triggering

▪ 6 to 12 V operating range

▪ ESD protection circuitry on all pins

▪ Temporal Horn Pattern, per UL217, NFPA72, and ISO8201

▪ UL Recognized for UL217 or UL268 applications

The A5366 is a low-current BiCMOS circuit providing all of

the required features for a photoelectric type smoke detector.

Thisdevicecanbeusedwithaninfraredphotoelectricchamber

to sense scattered light from smoke particles. A networking

capabilityallowsasmanyas50unitstobeinterconnectedsothat

if any unit senses smoke all units will sound an alarm. Special

features are incorporated in the design to facilitate calibration

andtestingofthefinisheddetector.Thedeviceisrecognizedby

UnderwritersLaboratoriesforuseinsmokealarmsthatcomply

with Standard UL217, or UL268, per file #S2113.

A variable-gain photoamplifier can be directly interfaced to

an infrared emitter-detector pair. The amplifier gain levels are

determinedbytwoexternalcapacitorsandareinternallyselected

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.

Packages:

16-pin DIP

(Package A)

Theinternaloscillatorandtimingcircuitrykeepstandbypower

to a minimum by sensing for smoke for only 100 μs every 10 s.

Aspecial three-stage–speedup sensing scheme is incorporated

to minimize the time to an audible alarm and also to reduce

falsetriggering. Chambersensitivityisperiodicallymonitored

andtwoconsecutivecyclesofdegradedsensitivityarerequired

for a warning signal (chirp) to occur.

16-pin SOICW

(Package LW)

TheA5366 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 –T) have 100% matte-

tin leadframe plating. The devices are rated for continuous

operation over the temperature range of –25°C to 75°C.

Not to scale

Typical Application Diagram

V_DD

0.047 μF

9 V

8.2 kΩ

5 kΩ

Rx1

Rx2

22 μF

TEST

A5366

Push-to-Test

1500 pF

4.7 kΩ

560 Ω

HUSH

4700 pF

DETECT

STROBE

Red LED

VSS

VDD

Connect to allow timer mode

("hush") operation

200 kΩ

10 MΩ

TIMING RES

100 kΩ

Connect HUSH to VSS

to disable timer mode

1 kΩ

330 Ω

OSC CAP

LED

IRED

I/O

Smoke

Chamber

Value of component can vary,

based on the piezoelectric horn used

220 kΩ

22 Ω

FEEDBACK

HORN2

100 μF

1000 pF

HORN1

Piezo Horn

220 Ω

1.5 MΩ

To / from

other units

26110.11-DS, Rev. G

12 3 4 5 6 7...13

中文翻译

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与A5366相关器件

型号	品牌	获取价格	描述	数据表
A5366CA	SENSITRON	获取价格	Photoelectric Smoke Detector with Interconnect and Timer
A5366CA	ALLEGRO	获取价格	PHOTOELECTRIC SMOKE DETECTOR WITH INTERCONNECT AND TIMER
A5366CA-T	ALLEGRO	获取价格	The A5366 is a low-current BiCMOS circuit providing all of the required features for a pho
A5366CA-T	SENSITRON	获取价格	Photoelectric Smoke Detector with Interconnect and Timer
A5366CLW-T	ALLEGRO	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO16, LEAD FREE, PLASTIC, DIP-16
A5366CLWTR-T	ALLEGRO	获取价格	The A5366 is a low-current BiCMOS circuit providing all of the required features for a pho
A5366CLWTR-T	SENSITRON	获取价格	Photoelectric Smoke Detector with Interconnect and Timer
A5367	ALLEGRO	获取价格	The A5367 is a low-current, BiCMOS circuit providing all of the required features for an i
A5367CA	ALLEGRO	获取价格	SMOKE DETECTOR WITH INTERCONNECT AND TIMER
A5367CA-T	ALLEGRO	获取价格	Analog Circuit, 1 Func, CMOS, PDIP16, LEAD FREE, PLASTIC, MS-001BB, DIP-16

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