MC14568 View Datasheet(PDF) - Freescale Semiconductor
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MC14568 Datasheet PDF : 11 Pages
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Table 2. Electrical Characteristics
Characteristics noted under conditions TA = +25°C, VDD = 9.0 V, VSS = 0 V, C12 = 0.1 µF (Oscillator Pin) R7 = 8.2 mΩf/fn (timing
resistor pin) unless otherwise noted.
Symbol
Characteristic
Test Condition
Test
Pin
Min
Typ
Max
Unit
VDD Supply Voltage Range
IIN Detector Input Current
VOS Input Offset Voltage
Operating
6
6.0
9.0
12
V
0 to 40% RH,
VIN = 0 to 9.0 V
15
—
—
Active Guard
14 – 15 —
—
Active Guard
16 – 15 —
—
Detect Comparator
15 – 13 —
—
1.0
pA
100
mV
100
50
VHYS
VCM
Hysteresis
Common Mode Range
LO-Z
HI-Z
tCL
Active Guard Impedance
Oscillator Period
No Alarm to Alarm
Guard Amplifier
Smoke Comparator
To VCC
To VCC
No Alarm
Alarm
13
80
14 – 15 0.5
13 – 15 0.5
14
—
16
—
12
1.34
32
130
160
mV
—
VDD – 2.0
V
—
VDD – 2.0
10
—
kΩ
500
—
1.67
2.0
s
40
48
ms
Timer Out Pulse Width
4
8.0
10
12
ms
Timer Period
VTH Low Voltage Threshold
Sensitivity Adj. Voltage
Low Battery Threshold
After Pin 1 High to Low,
4
—
6.43
10
min
No Smoke
TA = 0 to 50°C
6
7.2
—
7.8
V
V13/VDD, Pin 3 Open Circuit
13
48.5
50
51.5
%
Pin 3 Open Circuit
3
60.6
63
65.6
%
Horn Output Voltage
PWON Horn Output ON Time
IOUT = 16 mA, VDD = 9.0 V 10 – 11 —
0.1
0.5
V
IOUT = 16 mA, VDD = 7.2 V
—
—
0.9
IOUT = -16 mA, VDD = 9.0 V
8.5
8.8
—
IOUT = -16 mA, VDD = 7.2 V
6.3
—
—
Alarm
Low Battery
10 – 11 450
500
550
ms
8.0
10
12
PWOFF Horn Output OFF Time
Alarm
Alarm
Low Battery
10 – 11 450
500
550
ms
1350 1500
1650
32
40
48
Feedback
Timer Start Logic Levels
ILON
tLON
tLOFF
Timer Start Input Current
Timer Out Output Current
LED Output ON Current
LED Output ON Time
LED Output OFF Time
VIH
8
6.3
—
VIL
—
—
VIH
1
4.5
—
VIL
—
—
VIN = 9.0 V
1
20
—
VOUT = 0.5 V
4
500
—
VDD = 7.2 V, VOUT = 1.0 V
5
10
—
No Local Alarm, Not Latched 5
8.0
10
No Alarm, Standby
No Alarm, Timer Mode
5
32
40
8.0
10
—
V
2.7
—
V
2.5
80
µA
—
µA
—
mA
12
ms
48
s
12
Sensors
Freescale Semiconductor
MC14568
3
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