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MC146012 - Low Power CMOS Photoelectric Smoke Detector

Description

) High-Level Output Current I/O IOH mA IOZ VOL VIC VREF Off-State Output Leakage Current Active Common Mode Voltage Range Smoke Comparator Reference Voltage LED nA V V V V C1, C2, Detect Internal Internal VREF-HI High Smoke Comparator Reference Voltage

Table 3.

Features

  • Integrated Mute Function (IMF) to Temporarily Disable Horn Alarm Memory to Help Identify Alarming Unit Speed-Up Sampling Rate After First Detection of Smoke Double Sample for Degraded Chamber Sensitivity Monitor Digital Noise Filter on the I/O Pin Power-Up and Power-Down RESET Low-Battery Trip Point Set Externally Temporal Horn Pattern Operating Temperature: -10 to 75°C Operating Voltage.

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Datasheet preview – MC146012

Datasheet Details

Part number MC146012
Manufacturer Freescale Semiconductor
File Size 565.12 KB
Description Low Power CMOS Photoelectric Smoke Detector
Datasheet download datasheet MC146012 Datasheet
Additional preview pages of the MC146012 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com Freescale Semiconductor Technical Data Document Number: MC146012 Rev 0, 09/2005 Low Power CMOS Photoelectric Smoke Detector IC The MC146012 is an advanced smoke detector component containing sophisticated very-low power analog and digital circuitry. The IC, when used with an infrared photoelectric chamber and a small number of external components, will detect smoke by sensing scattered light from smoke particles. When detection occurs, a pulsating alarm is sounded via on-chip push-pull drivers and an external piezoelectric transducer. The MC146012 provides both audible and visual alarms. Upon sensing a normal smoke level, both alarms will be activated.
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