Datasheet > M75012

M75012

更新时间： 2024-11-18 05:47:19

品牌	Logo	应用领域
其他 - ETC		光电
页数	文件大小	规格书
10页	167K
描述
PHOTOELECTRIC SMOKE DETECTOR WITH INTERCONNECT

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中文翻译

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数据手册

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M75012 数据手册

一華半導體股份有限公司

SMOKE DETECTOR

MOSDESIGN SEMICONDUCTOR CORP.

PHOTOELECTRIC SMOKE DETECTOR

WITH INTERCONNECT

M75012

GENERAL DESCRIPTION

The M75012 is a very low-power IC providing all of the required features for a photoelectric type smoke detector.

This device can be used in conjunction with an infrared photoelectric chamber to sense scattered light from smoke particles.

A variable-gain photo amplifier can be directly interfaced to an infrared emitter / detector pair. The amplifier gain levels are

determined by two external capacitors that are then internally selected depending on the operating mode. Low gain is selected

during standby and timer modes. During a local alarm this low gain is increased ( internally ) by ~ 10% to reduce false triggering.

High gain is used during the push-button test and during standby to periodically monitor the chamber sensitivity.

FEATURES

‧Interconnect up to 50 detectors.

‧Piezoelectric horn driver.

‧Power-on reset.

‧Built-in circuits to reduce false triggering.

‧6V to 12V operating voltage range.

‧ESD-Protection circuitry on all pins.

‧Temporal horn pattern.

APPLICATIONS

‧Smoke detector.

PIN ASSIGNMENT

M75012P

TEST

TRIP

VSS

DETECT

STROBE

OSCR

VDD

IRED

OSCC

LED

I/O

FEEDBACK

HORN2

HORN1

1/10

2006-10-05

12 3 4 5 6 7...10

中文翻译

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