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MC145017 Scheda tecnica(PDF) 3 Page - Freescale Semiconductor, Inc

Il numero della parte MC145017
Spiegazioni elettronici  Low-Power CMOS Ionization Smoke Detector IC with Temporal Pattern Horn Driver
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Produttore elettronici  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC145017 Scheda tecnica(HTML) 3 Page - Freescale Semiconductor, Inc

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Sensors
Freescale Semiconductor
3
MC145017
Table 3. Electrical Characteristics(1)
(Voltages referenced to VSS, TA = 25°C)
1. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
Characteristic
Symbol
VDD
VDC
Min
Typ
Max
Unit
Operating Voltage
VDD
6.0
12
V
Output Voltage
Piezoelectric Horn Drivers (IOH = -16 mA)
Comparators (IOH = -30 µA)
Piezoelectric Horn Drivers (IOL = +16 mA)
Comparators (IOL = +30 µA)
VOH
VOL
7.2
9.0
7.2
9.0
6.3
8.5
8.8
0.1
0.9
0.5
V
V
Output Voltage — LED Driver, IOL = 10 mA
VOL
7.2
3.0
V
Output Impedance, Active Guard
Pin 14
Pin 16
LO-Z
HI-Z
9.0
9.0
10
1000
k
Operating Current (Rbias = 8.2 MΩ)
IDD
9.0
12.0
3.2
7.0
10.0
µA
Input Current — Detect (40% R.H.)
IIN
9.0
±1.0
pA
Input Current, Pin 8
IIN
9.0
±0.1
µA
Input Current @ 50
°C, Pin 15
IIN
±6.0
pA
Internal Set Voltage
Low Battery
Sensitivity
VLOW
VSET
9.0
7.2
47
50
7.8
53
V
%VDD
Hysteresis
VHYS
9.0
75
100
150
mV
Offset Voltage (measured at VIN = VDD/2
Active Guard
Detect Comparator
VOS
9.0
9.0
±100
±50
mV
Input Voltage Range, Pin 8
VIN
VSS -10
VDD + 10
V
Input Capacitance
CIN
5.0
pF
Common Mode Voltage Range, Pin 15
VCM
0.6
VDD - 2
V
Table 4. Timing Parameters
(C = 0.1
µF, R
bias = 8.2 MΩ, VDD = 9.0 V, TA = 25°C, See Figure 7)
Characteristics
Symbol
Min
Max
Units
Oscillator Period
No Smoke
Smoke
tCI
1.46
37.5
1.85
45.8
s
ms
Oscillator Rise Time
tR
10.1
12.3
ms
Horn Output
On Time
(During Smoke)
Off Time
PWON
PWOFF
450
450
550
550
ms
ms
LED Output
Between Pulses
On Time
tLED
PWON
35.0
10.1
44.5
12.3
s
ms
Horn Output
On Time
(During Low Battery)
Between Pulses
tON
tOFF
10.1
35.0
12.3
44.5
ms
s


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