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PDF RE46C120 Data sheet ( Hoja de datos )
| Número de pieza | RE46C120 | |
| Descripción | CMOS Ionization Smoke Detector ASIC | |
| Fabricantes | R & E International | |
| Logotipo |  |
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R&E International
RE46C120
CMOS Ionization Smoke Detector ASIC
Product Specification
General Description
The RE46C120 is low power CMOS ionization type
smoke detector IC. With a few external components
this circuit will provide all the required features for an
ionization type smoke detector.
An internal oscillator strobes power to the smoke
detection circuitry for 10.5mS every 1.66 seconds to
keep standby current to a minimum. A check for a low
battery condition is performed every 40 seconds when
in standby. The Tone input allows for selection of a
temporal pattern or a 2/3 duty cycle continuous tone.
The temporal horn pattern supports the NFPA 72
emergency evacuation signal.
Although this device was designed for smoke detection
utilizing an ionization chamber it could be used in a
variety of security applications.
Utilizing low power CMOS technology the RE46C120
was designed for use in smoke detectors that comply
with Underwriters Laboratory Specification UL217 and
UL268.
Features
• Guard Outputs for Ion Detector Input
• +/-0.75pA Detect Input Current
• Internal Reverse Battery Protection
• Internal Low Battery Detection
• Pin Selectable Horn Pattern
• Low Quiescent Current Consumption (<6.5uA)
• Available in 16L PDIP or 16L N SOIC
• ESD Protection on all Pins
• Compatible with MC145017, MC14467
• Available in Standard Packaging or RoHS
Complaint Pb Free Packaging
Pin Configuration
DETCOMP
N/C
LBADJ
TONE
LED
VDD
RBIAS
FEED
1
2
3
4
5
6
7
8
16 GUARD2
15 DETECT
14 GUARD1
13 VSEN
12 OSCAP
11 HS
10 HB
9 VSS
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Input Voltage Range Except FEED
FEED Input Voltage Range
Reverse Battery Time
Input Current except FEED
Operating Temperature
Storage Temperature
Maximum Junction Temperature
SYMBOL
VDD
Vin
Vinfd
TRB
Iin
TA
TSTG
TJ
VALUE
15
-.3 to Vdd +.3
-10 to +22
5
10
-10 to 60
-55 to 125
150
UNITS
V
V
V
S
MA
°C
°C
°C
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are
stress ratings only and operation at these conditions for extended periods may affect device reliability.
This product utilizes CMOS technology with static protection; however proper ESD prevention procedures should be used
when handling this product. Damage can occur when exposed to extremely high static electrical charge
Telephone 610.992.0727
Facsimile 610.992.0734
E-mail: [email protected]
Page 1 of 7
DS-RE46C120-010907
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
1 page  
RE46C120
CMOS Ionization Smoke Detector ASIC
Product Specification
Typical Application
R&E International
Figure 2
Notes:
1. Float or connect pin 4 to VDD for NFPA72 horn pattern, connect to VSS for 2/3 duty cycle continuous tone
2. R3, R4 and C1 are typical values and may be adjusted to maximize sound pressure.
3. C2 should be located as close as possible to the device power pins.
4. Route the pin 8 PC board trace away from pin 7 to avoid coupling.
Telephone 610.992.0727
Facsimile 610.992.0734
E-mail: [email protected]
Page 5 of 7
DS-RE46C120-010907
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet RE46C120.PDF ] | |
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