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MC145018 Fiches technique(PDF) 1 Page - Freescale Semiconductor, Inc

No de pièce MC145018
Description  Low-Power CMOS Ionization Smoke Detector IC with Interconnect and Temporal Horn Driver
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Fabricant  FREESCALE [Freescale Semiconductor, Inc]
Site Internet  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC145018 Fiches technique(HTML) 1 Page - Freescale Semiconductor, Inc

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MC145018
Rev 4, 05/2005
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2005. All rights reserved.
Low-Power CMOS
Ionization Smoke Detector IC with
Interconnect and Temporal
Horn Driver
The MC145018, when used with an ionization chamber and a small number
of external components, will detect smoke. When smoke is sensed, an alarm is
sounded via an external piezoelectric transducer and internal drivers. This circuit
is designed to operate in smoke detector systems that comply with UL217 and
UL268 specifications.
Features
Ionization Type with On-Chip FET Input Comparator
Piezoelectric Horn Driver
Guard Outputs on Both Sides of Detect Input
Input-Protection Diodes on the Detect Input
Low-Battery Trip Point, Internally Set, can be Altered Via External Resistor
Detect Threshold, Internally Set, can be Altered Via External Resistor
Pulse Testing for Low Battery Uses LED for Battery Loading
Comparator Output for Detect
Internal Reverse Battery Protection
Strobe Output for External Trim Resistors
I/O Pin Allows Up to 40 Units to be Connected for Common Signaling
Supports NFPA 72, ANSi 53.41, and ISO 8201
Audible Emergency Evacuation Signals
Power-On Reset Places IC in Standby Mode
ORDERING INFORMATION
Device
Case No.
Package
MC145018P
648-08
Plastic Dip
MC145018
IONIZATION SMOKE DETECTOR
IC WITH INTERCONNECT AND
TEMPORAL HORN DRIVER
P SUFFIX
PLASTIC DIP
CASE 648-08
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
I/O
LED
VDD
Guard Lo-Z
Silver
Brass
VSS
Detect
Comp. Out
Low V Set
Strobe Out
Timing
Resistor
Feedback
OSC Capacitor
Sensitivity Set
Detect Input
Guard Hi-z
Figure 1. Pin Assignment


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Numéro de composants électroniques

No de pièceDescriptionHtml ViewFabricant
MC145017_07 Low-Power CMOS Ionization Smoke Detector IC with Temporal Pattern Horn Driver 1  2  3  4  5  More Freescale Semiconductor, Inc
MC14568 Low-Power CMOS Ionization Smoke Detector with Interconnect and Timer 1  2  3  4  5  More Freescale Semiconductor, Inc
MC145012 Photoelectric Smoke Detector IC with I/O and Temporal Pattern Horn Driver 1  2  3  4  5  More Freescale Semiconductor, Inc
MC14468 Low-Power CMOS Ionization Smoke Detector IC with Interconnect 1  2  3  4  5  More Freescale Semiconductor, Inc

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