A5367CA datasheet(6/10 Pages) ALLEGRO

Part #	A5367CA

Description	SMOKE DETECTOR WITH INTERCONNECT AND TIMER

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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6 / 10 page

5367

SMOKE DETECTOR

WITH

INTERCONNECT

AND

TIMER

115 Northeast Cutoff, Box 15036

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

6

TIMING DIAGRAMS IN TYPICAL APPLICATION

NON-TIMER MODE

TIMER MODE

19 CLOCK CYCLES

1.67 s

NO ALARM

NO LOW BATTERY

STANDBY MODE

10 ms

40 ms

24 CLOCK CYCLES

V15 > V13 (NO SMOKE)

V15 < V13 (SMOKE)

V12

OSC. CAP

INTERNAL

CLOCK

LED

SMOKE

COMPARATOR

SMOKE

CHAMBER

HORN

SAMPLE

ALARM

NO LOW BATTERY

30 CLOCK CYCLES

LOW BATTERY

WARNING

HORN

ON TIME

"A"

ALARM AND

LOW BATTERY

NO ALARM

LOW BATTERY

Dwg. WC-003-2

24 CLOCK CYCLES

LED OFF

LED

ON

12 CLOCK

CYCLES

12 CLOCK

CYCLES

36 CLOCK CYCLES

HORN

OFF TIME

"B"

13 CLOCK

CYCLES

24 CLOCK CYCLES

73 CLOCK CYCLES

I/O

I/O CHARGE DUMP

SHADED AND UNSHADED AREAS

ARE DIFFERENT TIME SCALES

HORN OFF TIME

"C"

1.67 s

10 ms

V12

OSC. CAP

INTERNAL

CLOCK

LED

HORN

Dwg. WC-005-2

LED

ON

TIMER

START

TIMER

OUT

6 CLOCK CYCLES

368 CLOCK CYCLES

OUTPUTS OFF (HIGH Z)

I/O CHARGE DUMP

I/O

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A5367CA Datasheet(PDF) 6 Page - Allegro MicroSystems

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