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A5338

Package A

, 16-lead DIP

Smoke Detector

with Interconnect and Timer

The A5338CA 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 facili-

tate 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

battery-operated safety/security applications.

The A5338CA 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擄C to +50擄C.

Approximate Scale 1:1

Features

Interconnect up to 125 detectors

Piezoelectric horn driver

Guard outputs for detector input

Pulse testing for low battery

Power-on reset

Internal reverse battery protection

Internal timer and control for reduced sensitivity

Built-in hysteresis reduces false triggering

Typical Application

9V

50 k惟

200 k

惟

200 k惟

Push to set

1

To other units

200

惟

2

3

+SUPPLY or

鈥揝UPPLY

RLV

16

Push to test

TIMER START

I/O

LOW-V SET

GUARD2

Smoke

Chamber

DETECT IN 15

A5338

GUARD1 14

13

12

11

COSC

0.1

渭

F

RS

+SUPPLY or

鈥揝UPPLY

4 TIMER OUT

5

330

惟

6

RT

8.2 M

惟

7

8

LED

+SUPPLY

TIMING RES

FEEDBACK

SENSIVITIVTY SET

OSC CAP

HORN2

HORN1 10

鈥揝UPPLY

9

1 M惟

200 k惟

Horn

1

渭F

0.001

渭F

RST

Dwg. EC-005A

26110.1

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A5338CA相關(guān)型號(hào)PDF文件下載

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• A5338
  英文版
  Smoke Detector with Interconnect and Timer
  
  A5338
• A5338
  英文版
  Smoke Detector with Interconnect and Timer
  allegromicro
  A5338
• A5338CA
  英文版
  Smoke Detector with Interconnect and Timer
  
  A5338CA
• A5338CA
  英文版
  Smoke Detector with Interconnect and Timer
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  A5338CA

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