MC14468 Datasheet, PDF (3/9 Pages) Motorola, Inc – LONIZATION SMOKE DETECTOR IC WITH INTERCONNECT

Table 2. Recommended Operating Conditions
(Voltages Referenced to VSS)
Supply Voltage
Parameter
Timing Capacitor
Timing Resistor
Battery Load (Resistor or LED)
Symbol
Value
Unit
V_DD
9.0
V
—
0.1
µF
—
8.2
MΩ
—
10
mA
Table 3. Electrical Characteristics
(T_A = 25°C)
Characteristic
Symbol
V_DD
V_DC
Min
Type⁽¹⁾
Max
Unit
Operating Voltage
Output Voltage
Piezoelectric Horn Drivers (I_OH = –16 mA)
Comparators (I_OH = –30 µA)
Piezoelectric Horn Drivers (I_OL = +16 mA)
Comparators (I_OL = +30 µA)
Output Voltage — LED Driver, I_OL = 10 mA
Output Impedance, Active Guard
Pin 14
Pin 16
V_DD
—
6.0
—
12
V
V_OH
V
7.2
6.3
—
—
9.0
8.5
8.8
—
V_OL
7.2
—
—
0.9
V
9.0
—
0.1
0.5
V_OL
7.2
—
—
3.0
V
kΩ
LO-Z
9.0
—
—
10
HI-Z
9.0
—
—
1000
Operating Current (R_BIAS = 8.2 MΩ)
I_DD
9.0
—
5.0
9.0
µA
12.0
—
—
12.0
Input Current — Detect (40% R.H.)
Input Current, Pin 8
Input Current @ 50°C, Pin 15
Internal Set Voltage
Low Battery
Sensitivity
Hysteresis
Offset Voltage (Measured at V_IN = V_DD/2)
Active Guard
Detect Comparator
I_IN
9.0
—
I_IN
9.0
—
I_IN
—
—
—
±1.0
—
±0.1
—
±6.0
V_LOW
9.0
7.2
—
7.8
V_SET
—
47
50
53
V_HYS
9.0
75
100
150
V_OS
9.0
—
9.0
—
—
±100
—
±50
pA
µA
pA
V
%V_DD
mV
mV
Input Voltage Range, Pin 8
Input Capacitance
Common Mode Voltage Range, Pin 15
I/O Current, Pin 2
Input, V_IH = V_DD –2
Output, V_OH = V_DD –2
V_IN
—
V_SS – 10
—
V_DD + 10
V
C_IN
—
—
5.0
—
pF
V_CM
—
0.6
—
V_DD – 2
V
I_IH
—
25
—
100
µA
I_OH
—
–4.0
—
–16
mA
1. Data labelled “Typ'' is not to be used for design purposes, but is intended as an indication of the IC's potential performance.
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Freescale Semiconductor
MC14468
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