Datasheet > MC145017P

MC145017P

更新时间： 2024-09-30 04:40:59

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		驱动器光电二极管
页数	文件大小	规格书
8页	226K
描述
Low-Power CMOS Ionization Smoke Detector IC with Temporal Pattern Horn Driver

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MC145017P 数据手册

MC145017

Rev 5, 05/2005

Freescale Semiconductor

Technical Data

MC145017

Low-Power CMOS

Ionization Smoke Detector IC

with Temporal Pattern Horn Driver

LOW-POWER CMOS IONIZATION

SMOKE DETECTOR IC WITH

TEMPORAL PATTERN

The MC145017, 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.

HORN DRIVER

Features

•

Ionization Type with On-Chip FET Input Comparator

Piezoelectric Horn Driver

Guard Outputs on Both Sides of Detect Input

P SUFFIX

PLASTIC DIP

CASE 648-08

Input-Production 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 Outputs for Detect and Low Battery

Internal Reverse Battery Protection

Detect

16 Guard Hi-Z

Comp. Out

Supports NFPA 72, ANSi 53.41, and ISO 8201 Audible Emergency

Evacuation Signals

N/C

Detect Input

Guard Lo-Z

Low V Set

Low V

Comp. Out

13 Sensitivity Set

12 Osc Capacitor

ORDERING INFORMATION

LED

Device

Case No.

Package

V_DD

Silver

10 Brass

MC145017P

648-08

Plastic Dip

Timing

Resistor

V_SS

Feedback

Figure 1. . Pin Connections

12 3 4 5 6 7 8

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