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CS235 Datasheet System Photoelectric Smoke Detector

Manufacturer: Cherry Semiconductor Corporation

Overview: CS235 CS235 System Photoelectric Smoke Detector.

General Description

The CS235 System Smoke Detector is a photo electric type with a pulsed infrared LED as the light source and a silicon photodiode as the light detector.

The CS235 IC, along with passive external ponents, controls the system timing and signal processing.

Low average current is attained by pulsing the system once every 10 seconds for 20 milliseconds.

Key Features

  • include an ICC current limiter. The current limiter eliminates power-on false alarming. The oscillator controls the IR LED excitation frequency and provides drive to the synchronous detector. The synchronous detection method has very high noise rejection performance. The internal latch is capable of sinking 100 milliamps maximum and will clamp the VCC pin to 5 volts when tripped. The latch current is determined by an external resistor typically located in the master panel and is reset by tempora.

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CS235 Distributor