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PDF RE46C143 Data sheet ( Hoja de datos )
| Número de pieza | RE46C143 | |
| Descripción | CMOS Photoelectric Smoke Detector ASIC | |
| Fabricantes | R & E International | |
| Logotipo |  |
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R&E International
RE46C143
CMOS Photoelectric Smoke Detector ASIC with Interconnect
Product Specification
General Description
The RE46C143 is low power CMOS photoelectric type
smoke detector IC. With minimal external components
this circuit will provide all the required features for a
photoelectric type smoke detector.
The design incorporates a gain selectable photo
amplifier for use with an infrared emitter/detector pair.
An internal oscillator strobes power to the smoke
detection circuitry for 100us every 8.1 seconds to keep
standby current to a minimum. If smoke is sensed the
detection rate is increased to verify an alarm condition.
A high gain mode is available for push button chamber
testing.
A check for a low battery condition and chamber
integrity is performed every 40 seconds when in
standby. The alarm horn pattern utilizes a 75% duty
cycle.
An interconnect pin allows multiple detectors to be
connected such that when one units alarms, all units
will sound.
Utilizing low power CMOS technology the RE46C143
was designed for use in smoke detectors that comply
with Underwriters Laboratory Specification UL217 and
UL268.
Features
• Internal Power On Reset
• Low Quiescent Current Consumption
• Available in 16L PDIP or 16L N SOIC
• ESD Protection on all Pins
• Interconnect up to 40 Detectors
• 75% Duty Cycle Horn Pattern
• Low Battery and Chamber Test
• Compatible with Motorola MC145010
• Available in Standard Packaging or RoHS
Compliant Pb Free Packaging.
Pin Configuration
C1
C2
DETECT
STROBE
VDD
IRED
IO
HORNB
1
2
3
4
5
6
7
8
16 TEST
15 LBSET
14 VSS
13 ROSC
12 COSC
11 LED
10 FEED
9 HORNS
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Input Voltage Range Except FEED, IO
FEED Input Voltage Range
IO Input Voltage Range
Input Current except FEED
Operating Temperature
Storage Temperature
Maximum Junction Temperature
SYMBOL
VDD
Vin
Vinfd
Vio1
Iin
TA
TSTG
TJ
VALUE
12.5
-.3 to Vdd +.3
-10 to +22
-.3 to +17
10
-25 to 75
-55 to 125
150
UNITS
V
V
V
V
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 12
DS-RE46C143-121806
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
1 page  
RE46C143
CMOS Photoelectric Smoke Detector ASIC with Interconnect
Product Specification
Functional Block Diagram
R&E International
Figure 1
Telephone 610.992.0727
Facsimile 610.992.0734
E-mail: [email protected]
Page 5 of 12
DS-RE46C143-121806
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
5 Page 
RE46C143
CMOS Photoelectric Smoke Detector ASIC with Interconnect
Product Specification
Timing Diagrams (continued)
STROBE
IRED
LED
Local Alarm Timing (not to scale)
TPER2
TPLED2
No Alarm
Horn Timing
Local or Remote Alarm
THON1
THOF1
Horn
Interconnect Timing
IO as Output
TIODLY1
IO as Input
TIOFILT
TIODLY2
Notes:
1. Smoke is not sampled when the horn is active. Horn cycle is self completing in local alarm.
2. Low battery warning chirp is suppressed in local or remote alarm
3. IO Dump active only in local alarm, inactive if external alarm
R&E International
No Alarm
Telephone 610.992.0727
Facsimile 610.992.0734
E-mail: [email protected]
Page 11 of 12
DS-RE46C143-121806
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet RE46C143.PDF ] | |
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