A5350 查看數據表（PDF） - Allegro MicroSystems

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A5350

SMOKE DETECTOR WITH INTERCONNECT

Allegro MicroSystems 

5350

SMOKE DETECTOR

with INTERCONNECT

V12

OSC. CAP

INTERNAL

CLOCK

LED

SMOKE

COMPARATOR

HORN

TYPICAL APPLICATION

9V

TO

OTHER

UNITS

200 Ω

1 NC

2

NOTE

3

2

4 NC

330 Ω

5

LOGIC

OSC. &

TIMING

8.2 MΩ

6 V DD

7

HORN

DRIVER

1 µF

8

16

15

14

13

12

11

10

V SS 9

0.1 µF

PUSH

TO

TEST

NOTE 1

0.001 µF

Dwg. EC-005-3

NOTE 1: An external resistor divider is used to adjust sensitivity for the particular

smoke chamber.

NOTE 2: Abartetesrisytovor lttoaggerotuhnredsohrolVdD. D may be added to this pin to modify low

TIMING DIAGRAMS IN TYPICAL APPLICATION

NO ALARM

NO LOW BATTERY

STANDBY MODE

ALARM

NO LOW BATTERY

ALARM AND

LOW BATTERY

NO ALARM

LOW BATTERY

1.67 s

10 ms

40 ms

24 CLOCK CYCLES

LED OFF

SAMPLE

24 CLOCK CYCLES

LED

ON

12 CLOCK CYCLES

6 CLOCK CYCLES

6 CLOCK CYCLES

HORN

OFF

ON

30 CLOCK CYCLES

LOW BATTERY

WARNING

SMOKE

CHAMBER

V15 < V13 (NO SMOKE)

V15 > V13 (SMOKE)

Dwg. WC-003-1

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