A5350 查看數據表（PDF） - Allegro MicroSystems
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A5350 Datasheet PDF : 8 Pages
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5350
SMOKE DETECTOR
with INTERCONNECT
ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 9.0 V, VSS = 0 V, C12 = 0.1 µF,
R7 = 8.2 MΩ (unless otherwise noted).
Characteristic
Supply Voltage Range
Detector Input Current
Input Offset Voltage
Common Mode Range
Active Guard Impedance
Oscillator Period
Test
Pin
6
15
14-15
16-15
15-13
14-15
13-15
14
16
12
Test Conditions
Operating
0 to 40% RH, VIN = 0 to 9.0 V
Active Guard
Active Guard
Detect Comparator
Guard Amplifier
Smoke Comparator
to VSS
to VSS
No Alarm
Alarm
Min.
6.0
—
—
—
—
2.0
0.5
—
—
1.34
32
Limits
Typ. Max. Units
9.0
12
V
—
±1.0
pA
—
±100 mV
—
±100 mV
—
±50
mV
— VDD - 0.5 V
— VDD - 2.0 V
10
—
kΩ
500
—
kΩ
1.67
2.00
s
40
48
ms
Oscillator Pulse Width
Low Voltage Threshold
Horn Output Voltage
Horn Output ON Time
12
6
10-11
10-11
TA = 0 to 50°C
IOUT = 16 mA, VDD = 9.0 V
IOUT = 16 mA, VDD = 7.2 V
IOUT = -16 mA, VDD = 9.0 V
I = -16 mA, V = 7.2 V
OUT
DD
Alarm
Low Battery
8.0
10
12
ms
7.2
—
7.8
V
—
0.1
0.5
V
—
—
0.9
V
8.5
8.8
—
V
6.3
—
—
V
120
160
208
ms
8.0
10
12
ms
Horn Output OFF Time
LED Output ON Current
LED Output ON Time
LED Output OFF Time
I/O Current
I/O Alarm Voltage
10-11
5
5
5
2
2
Alarm
Low Battery
VDD = 7.2 V, VOUT = 1.0 V
No Alarm, In Standby
No Alarm, V = V - 2.0 V
I/O DD
Alarm, V = V - 2.0 V
I/O
DD
External “Alarm” In
60
80
104
ms
32
40
48
s
10
—
—
mA
8.0
10
12
ms
32
40
48
s
25
—
60
µA
-7.5
—
—
mA
3.0
—
—
V
I/O Delay
2
“Alarm” Out
—
Supply Current
6
VDD = 9.0 V, No Alarm, No Loads
—
VDD = 12 V, No Alarm, No Loads
—
NOTE 1: Negative current is defined as coming out of (sourcing) the specified device pin.
NOTE 2: Alarm (Smoke) Condition is defined as V15 > V13; No Alarm (No Smoke) Condition as V15 < V13.
3.0
—
s
5.0
9.0
µA
—
12
µA
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