A5338 데이터 시트보기 (PDF) - Allegro MicroSystems

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A5338

Smoke Detector with Interconnect and Timer

Allegro MicroSystems 

A5338 Smoke Detector with Interconnect and Timer

Pin-out Diagram

TIMER START 1

16 GUARD2

I/O 2

LOW-V SET 3

LOGIC

15 DETECT IN

14 GUARD1

TIMER OUT 4

LED 5

OSC. &

TIMING

13 SENSITIVITY SET

12 OSC CAP

+SUPPLY 6 V DD

TIMING RES 7

FEEDBACK 8

HORN

DRIVER

11 HORN2

10 HORN1

VSS 9 –SUPPLY

Dwg. PC-004

Terminal List Table

Number

Name

1

TIMER START

2

I/O

3

LOW-V SET

4

TIMER OUT

5

LED

6

+SUPPLY

7

TIMING RES

8

FEEDBACK

9

–SUPPLY

10

HORN1

11

HORN2

12

OSC CAP

13

SENSITIVITY SET

14

GUARD1

15

DETECT IN

16

GUARD2

Function

Logic input for setting device mode.

Logic input/output, where multiple detectors can be connected.

Terminal for a resistor, RLV, to the –SUPPLY pin (VSS) or to the +SUPPLY pin (VDD),

which may be added to modify the battery Low Voltage Threshold, VDDL.

Terminal for a resistor, RST, to reduce sensitivity during Timer mode.

LED output.

Device supply, VDD.

Terminal for timing resistor.

Feedback from horn external circuit.

Device supply, VSS.

Horn driver output 1.

Horn driver output 2.

Terminal for timing oscillator capacitor.

Terminal for resistor, RS, to adjust sensitvity for a particular smoke chamber.

Terminal for smoke detector guard 1.

Terminal for smoke detector input.

Terminal for smoke detector guard 2.

26110.1

Allegro MicroSystems, Inc.

3

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

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