RE46C128E16F Microchip Technology, RE46C128E16F Datasheet

IC SMOKE DETECTOR CMOS 16-DIP

RE46C128E16F

Manufacturer Part Number
RE46C128E16F
Description
IC SMOKE DETECTOR CMOS 16-DIP
Manufacturer
Microchip Technology
Type
Smoke Detectorr
Datasheet

Specifications of RE46C128E16F

Package / Case
16-DIP (0.300", 7.62mm)
Input Type
Logic
Output Type
Logic
Interface
CMOS
Current - Supply
9µA
Mounting Type
Through Hole
Supply Voltage Range
6V To 12V
Operating Temperature Range
-10°C To +60°C
Digital Ic Case Style
DIP
No. Of Pins
16
Svhc
No SVHC (15-Dec-2010)
Supply Voltage Max
12V
Supply
RoHS Compliant
Product
Piezoelectric Horn Drivers
Ic Function
Ionization Smoke Detector IC With Interconnect
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
RE46C128
CMOS Ionization Smoke Detector ASIC with Interconnect
Product Specification
General Description
The RE46C128 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. The temporal horn pattern supports the
NFPA 72 emergency evacuation signal.
An interconnect pin allows multiple detectors to be
connected such that when one units alarms all units will
sound.
Although this device was designed for smoke detection
utilizing an ionization chamber it could be used in a
variety of security applications.
The RE46C128 is recognized by Underwriters
Laboratories for use in smoke detectors that comply
with specification UL217 and UL268.
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
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.
© 2009 Microchip Technology Inc.
A Subsidiary of Microchip Technology Inc.
R&E International
SYMBOL
T
V
V
V
T
V
T
T
I
STG
infd
DD
RB
io1
in
in
A
J
Features
>1500V ESD Protection (HBM) on all Pins
Guard Outputs for Ion Detector Input
+/-0.75pA Detect Input Current
Internal Reverse Battery Protection
Low Quiescent Current Consumption (<6.5uA)
Available in 16L PDIP or 16L N SOIC
Internal Low Battery Detection
Power Up Low Battery Test
Interconnect up to 40 Detectors
Compatible with Allegro A5364
UL Recognized per File S24036
Available in Standard Packaging or RoHS
Compliant Pb Free Packaging.
LBADJ
RBIAS
FEED
N/C
N/C
VDD
LED
IO
Pin Configuration
-.3 to V
-10 to +22
-55 to 125
-10 to 60
VALUE
-.3 to 17
1
2
3
4
5
6
7
8
150
15
10
5
dd
+.3
16
15
14
13
12
11
10
9
GUARD2
DETECT
GUARD1
VSEN
OSCAP
HS
HB
VSS
UNITS
mA
°C
°C
°C
DS22171B-page 1
V
V
V
S
V

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RE46C128E16F Summary of contents

Page 1

... R&E International A Subsidiary of Microchip Technology Inc. RE46C128 CMOS Ionization Smoke Detector ASIC with Interconnect Product Specification General Description The RE46C128 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. ...

Page 2

... OH1 10,11 IOL=16mA, VDD=7.2V OL1 5 IOL=10mA, VDD=7.2V OL3 2 No Alarm, Vio=Vdd-2V IOL1 2 Alarm, Vio=Vdd-2V or Vio=0V IOH1 At Conclusion of Local Alarm or Test, 2 Vio= =-10 to 60ºC, Note SET1 3 SET2 R&E International A Subsidiary of Microchip Technology Inc. Limits Min Typ Max Units 6 6.2 4 4.5 2 -0.75 pA -1.50 ...

Page 3

... Low Battery, No Alarm HOF3 2 At Conclusion of Local Alarm or Test 2 From Start of Local Alarm to IO Active IO pulse width guaranteed to be filtered Input, No Local Alarm No Local Alarm input, From IO 2 active to Horn Active R&E International A Subsidiary of Microchip Technology Inc. Limits Min Typ Max Units - - -50 ...

Page 4

... RE46C128 CMOS Ionization Smoke Detector ASIC with Interconnect Product Specification © 2009 Microchip Technology Inc. RE46c128 Functional Block Diagram Figure 1 R&E International A Subsidiary of Microchip Technology Inc. DS22171B-page 4 ...

Page 5

... By holding pin 12 (OSCAP) low the internal power strobe is active. Functional testing can be accelerated by driving pin 12 with a 4 kHz square wave however the 10.5mS strobe period must be maintained for proper operation of the analog circuitry. Please refer to the timing diagrams. © 2009 Microchip Technology Inc. R&E International A Subsidiary of Microchip Technology Inc. DS22171B-page 5 ...

Page 6

... R3, R4 and C1 are typical values and may be adjusted to maximize sound pressure. C2 should be located as close as possible to the device power pins. Route the pin 8 PC board trace away from pin 7 to avoid signal coupling. © 2009 Microchip Technology Inc. RE46c128 Typical Application Figure 2 R&E International A Subsidiary of Microchip Technology Inc. DS22171B-page 6 ...

Page 7

... See Figure Below for Complete Horn Cycle T IODLY1 LED supressed in remote alarm mode T IODLY2 Horn pattern not self completing for external alarm,see timing below for complete horn cycle T HOF2 R&E International A Subsidiary of Microchip Technology Inc. No Alarm; Low Battery Pin 15 > Pin 13 Low Battery Warning Chirp DS22171B-page 7 ...

Page 8

... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

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