MC14568 Freescale Semiconductor, MC14568 Datasheet - Page 3

• Manufacturer Part Number: MC14568
• Description: Low-Power CMOS Ionization Smoke Detector
• Manufacturer: Freescale Semiconductor

Sensors
Freescale Semiconductor
Table 2. Electrical Characteristics
Characteristics noted under conditions T
resistor pin) unless otherwise noted.
Symbol
PW
PW
V
LO-Z
t
HI-Z
I
t
V
V
V
V
LOFF
LON
LON
t
I
HYS
CL
CM
DD
IN
OS
TH
OFF
ON
Supply Voltage Range
Detector Input Current
Input Offset Voltage
Hysteresis
Common Mode Range
Active Guard Impedance
Oscillator Period
Timer Out Pulse Width
Timer Period
Low Voltage Threshold
Sensitivity Adj. Voltage
Low Battery Threshold
Horn Output Voltage
Horn Output ON Time
Horn Output OFF Time
Feedback
Timer Start Logic Levels
Timer Start Input Current
Timer Out Output Current
LED Output ON Current
LED Output ON Time
LED Output OFF Time
Characteristic
A
= +25°C, V
DD
No Local Alarm, Not Latched
V
I
I
I
I
V
OUT
OUT
OUT
OUT
13
After Pin 1 High to Low,
= 9.0 V, V
DD
No Alarm, Timer Mode
/V
Smoke Comparator
Detect Comparator
No Alarm, Standby
Pin 3 Open Circuit
No Alarm to Alarm
= -16 mA, V
= -16 mA, V
= 7.2 V, V
DD
= 16 mA, V
= 16 mA, V
Test Condition
Guard Amplifier
V
T
0 to 40% RH,
Active Guard
Active Guard
V
IN
A
Low Battery
Low Battery
, Pin 3 Open Circuit
V
No Smoke
OUT
Operating
No Alarm
= 0 to 50°C
IN
= 0 to 9.0 V
To V
To V
Alarm
Alarm
Alarm
Alarm
V
V
= 9.0 V
V
V
SS
= 0.5 V
IH
IL
IH
IL
CC
CC
OUT
= 0 V, C
DD
DD
DD
DD
= 1.0 V
= 9.0 V
= 7.2 V
= 9.0 V
= 7.2 V
12
= 0.1 µF (Oscillator Pin) R7 = 8.2 mΩf/fn (timing
14 – 15
16 – 15
15 – 13
14 – 15
13 – 15
10 – 11
10 – 11
10 – 11
Test
Pin
15
13
14
16
12
13
6
4
4
6
3
8
1
1
4
5
5
5
1350
1.34
48.5
60.6
Min
450
450
500
6.0
0.5
0.5
8.0
7.2
8.5
6.3
8.0
6.3
4.5
8.0
8.0
80
32
32
20
10
32
—
—
—
—
—
—
—
—
—
—
—
1500
1.67
6.43
Typ
130
500
500
500
9.0
0.1
8.8
10
40
10
50
63
10
40
10
40
10
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
V
V
DD
DD
1650
Max
51.5
65.6
100
100
160
550
550
1.0
2.0
7.8
0.5
0.9
2.7
2.5
12
12
12
50
—
—
48
10
—
—
12
48
—
—
80
—
—
48
12
– 2.0
– 2.0
MC14568
Unit
mV
mV
min
mA
ms
ms
pA
kΩ
ms
ms
ms
µA
µA
%
%
V
V
V
V
V
V
s
s
3