Datasheet > ELM365SM

ELM365SM

更新时间： 2024-11-22 06:56:35

品牌	Logo	应用领域
ELM		控制器
页数	文件大小	规格书
4页	34K
描述
SECURITY SYSTEM CONTROLLER

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数据手册

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ELM365SM 数据手册

ELM365

Security System Controller

Description

Features

The ELM365 provides all of the logic necessary

for a complete security system in an 8 pin package.

• Low power CMOS design - typically 1mA at 5V

• Wide supply range - 3.0 to 5.5 volt operation

• Simultaneous monitoring of three circuits

• 45 second delay for entry and exit

The circuit is capable of monitoring two normally

closed input loops and one normally open panic

circuit, provides a constant level and a pulsing alarm

output, and the logic to drive a status LED.

• Automatic reset of alarm outputs after 5 minutes

• Status LED output driver

Internal timers are provided for alarm blocking

during zone entry and exit as well as circuit

resetting, should alarms go unacknowledged.

Debouncing of all of the inputs is also provided

internally, to allow for the direct interfacing to

mechanical switches.

• High current drive outputs - up to 25 mA

• Panic input for instant triggering of the alarm

Due to the digital techniques employed, no

external support components are required for any of

the timing functions, resulting in considerable cost

savings over other designs.

Connection Diagram

PDIP and SOIC

(top view)

Applications

VDD

OutP

OutC

panic

VSS

• Home or cottage security systems

• Auto or RV security systems

DLoop

ILoop

LED

• Individual zone monitoring in a multizone system

• High or low limit warning alarms

Block Diagram

VDD

DLoop

fast

45 sec

Delay

45 sec

PowerUp

LED

Flasher

LED

VDD

slow

ILoop

panic

Alarm

Latch

Alarm

Latch

OutC

OutP

1.5s on

0.5s off

5 min

Reset

ELM365DSB

Elm Electronics – Circuits for the Hobbyist

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