A5347 데이터 시트보기 (PDF) - Allegro MicroSystems

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A5347

SMOKE DETECTOR WITH INTERCONNECT AND TIMER

Allegro MicroSystems 

5347

SMOKE DETECTOR

with INTERCONNECT

and TIMER

TIMING DIAGRAMS IN TYPICAL APPLICATION

NON-TIMER MODE

V12

OSC. CAP

INTERNAL

CLOCK

LED

SMOKE

COMPARATOR

HORN

NO ALARM

NO LOW BATTERY

STANDBY MODE

1.67 s

10 ms

ALARM

NO LOW BATTERY

40 ms

ALARM AND

LOW BATTERY

NO ALARM

LOW BATTERY

24 CLOCK CYCLES

LED OFF

SAMPLE

24 CLOCK CYCLES

30 CLOCK CYCLES

LED

ON

12 CLOCK CYCLES

6 CLOCK CYCLES

6 CLOCK CYCLES

HORN

OFF

ON

LOW BATTERY

WARNING

SMOKE

CHAMBER

V15 > V13 (NO SMOKE)

V12

OSC. CAP

INTERNAL

CLOCK

TIMER

START

1.67 s

10 ms

V15 < V13 (SMOKE)

TIMER MODE

368 CLOCK CYCLES

Dwg. WC-003

TIMER

OUT

LED

HORN

6 CLOCK CYCLES

LED

ON

OUTPUTS OFF (HIGH Z)

END OF TIMER

NOTIFICATION

115 Northeast Cutoff, Box 15036

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

Dwg. WC-005

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