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零件编号
产品描述 (功能)
A5355 查看數據表(PDF) - Allegro MicroSystems
零件编号
产品描述 (功能)
生产厂家
A5355
SMOKE DETECTOR WITH INTERCONNECT
Allegro MicroSystems
A5355 Datasheet PDF : 8 Pages
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5355
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 M
Ω
6
V
DD
7
HORN
DRIVER
1
µ
F
8
16
15
14
13
12
11
10
V
SS
9
0.1
µ
F
PUSH
TO
TEST
NOTE 1
0.001
µ
F
Dwg. EC-005-5
NOTE 1: An external resistor divider is used to adjust sensitivity for the particular
smoke chamber.
NOTE 2: Abartetesrisytovor
lttoaggerotuhnredsohrolVd
D
.
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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