Table 2. Recommended Operating Conditions
(Voltages referenced to VSS
)
Parameter
Symbol
VDD
—
Value
9.0
Unit
V
Supply Voltage
Timing Capacitor
Timing Resistor
0.1
µF
—
8.2
MΩ
mA
Battery Load (Resistor or LED)
—
10
Table 3. Electrical Characteristics
(Voltages referenced to VSS, TA = 25°C)
VDD
VDC
Typ(1)
Characteristic
Symbol
Min
Max
Unit
Operating Voltage
VDD
VOH
—
6.0
—
12
V
V
Output Voltage
Piezoelectric Horn Drivers (IOH = -16 mA)
Comparators (IOH = -30 µA)
Piezoelectric Horn Drivers (IOL = +16 mA)
7.2
9.0
7.2
9.0
6.3
8.5
—
—
8.8
—
—
—
0.9
0.5
VOL
VOL
V
Comparators (IOL = +30 µA)
—
0.1
Output Voltage - LED Driver, IOL = 10 mA
7.2
—
—
3.0
V
Output Impedance, Active Guard
kΩ
Pin 14
Pin 16
Lo-Z
Hi-Z
9.0
9.0
—
—
—
—
10
1000
Operating Current (Rbias = 8.2 MΩ)
IDD
9.0
12.0
—
—
5.0
—
9.0
12.0
µA
Input Current - Detect (40% R.H.)
Iin
9.0
—
—
±1.0
pA
Internal Set Voltage
Low Battery
Sensitivity
Vlow
Vset
9.0
—
7.2
47
—
50
7.8
53
V
%VDD
Hysteresis
vhys
VOS
9.0
75
100
150
mV
mV
Offset Voltage (measured at Vin = VDD/2
Active Guard
Detect Comparator
9.0
9.0
—
—
—
—
±100
±50
Input Voltage Range, Pin 8
Input Capacitance
Vin
Cin
—
—
—
VSS - 10
—
—
5.0
—
VDD + 10
—
V
pF
V
Common Mode Voltage Range, Pin 15
Vcm
0.6
VDD - 2
1. Data labelled “Typ'' is not to be used for design purposes but is intended as an indication of the IC's potential performance.
MC14467-1
Sensors
Freescale Semiconductor
3
FREESCALE [ Freescale ]
