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RE46C126 데이터시트 PDF




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부품번호 RE46C126 기능
기능 CMOS Ionization Smoke Detector ASIC
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RE46C126 데이터시트, 핀배열, 회로
www.DataSheet4U.com
R&E International
RE46C126
CMOS Ionization Smoke Detector ASIC with Interconnect
Product Specification
General Description
The RE46C126 is low power CMOS ionization type
smoke detector IC. With 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. . A 2/3 duty cycle continuous horn pattern is
used for the alarm condition.
An interconnect pin allows multiple detectors to be
connected such that when one unit alarms all units will
sound.
Although this device was designed for smoke detection
utilizing an ionization chamber it can be used in a
variety of security applications.
Utilizing low power CMOS technology the RE46C126
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
Low Quiescent Current Consumption (<6.5uA)
Available in 16L PDIP or 16L N SOIC
ESD Protection on all Pins
Interconnect up to 40 Detectors
Compatible with MC14468
Available in Standard Packaging or RoHS
Complaint Pb Free Packaging
Pin Configuration
DETCOMP
IO
LBADJ
STROBE
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, IO
FEED Input Voltage Range
IO Input Voltage Range
Reverse Battery Time
Input Current except FEED
Operating Temperature
Storage Temperature
Maximum Junction Temperature
SYMBOL
VDD
Vin
Vinfd
Vio1
TRB
Iin
TA
TSTG
TJ
VALUE
15
-.3 to Vdd +.3
-10 to +22
-.3 to 17
5
10
-10 to 60
-55 to 125
150
UNITS
V
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
Page 1 of 8
DS-RE46C126-010907
This datasheet contains PROPRIETARY and CONFIDENTIAL information.




RE46C126 pdf, 반도체, 판매, 대치품
RE46C126
CMOS Ionization Smoke Detector ASIC with Interconnect
Product Specification
Functional Block Diagram
R&E International
Figure 1
Telephone 610.992.0727
Facsimile 610.992.0734
Page 4 of 8
DS-RE46C126-010907
This datasheet contains PROPRIETARY and CONFIDENTIAL information.

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RE46C126 전자부품, 판매, 대치품
RE46C126
CMOS Ionization Smoke Detector ASIC with Interconnect
Product Specification
R&E International
Standby Mode; No Low Battery; No Alarm
Timing Diagram
Alarm; No Low Battery
Alarm; Low Battery
No Alarm; Low Battery
Oscillator
Pin 15 > Pin 13
1.67S 10.5mS
Pin 13 > Pin 15; 130mV Level Shift on Pin 13
Pin 15 > Pin 13
Internal Clock
LED
24 Clock Cycles (40 S)
Floating
24 Clock Cycles (1S)
DETCOMP (pin1)
Sample Smoke
STROBE (pin 4)
Floating
Horn
IO (Pin 2) as Output
IO Charge Dump
IO ( Pin 2) as Input
TIOFILT
TIODLY2
Horn Start of horn pattern is not synchronized to an external alarm
See Figure Below for Complete Horn Cycle
TIODMP
LED supressed in remote alarm mode
Horn pattern not self completing for external alarm
Low Battery Warning Chirp
Internal Clock
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 alarm
3. IO Dump active only in local alarm, inactive if external alarm
Telephone 610.992.0727
Facsimile 610.992.0734
Page 7 of 8
DS-RE46C126-010907
This datasheet contains PROPRIETARY and CONFIDENTIAL information.

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