CNY171FM

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Optoisolators - Transistor, Photovoltaic Output

CNY171FM optoisolators are manufactured by Panasonic Industries Corporation, and they offer low cost, high reliability, and high temperature operation. This optoisolator combines a light-activated integrated circuit (IC) with an I/O interface. The device features photovoltaic output with ultraviolet sensitive surface-mounted components.

The CNY171FM optoisolator is a single-channel optical isolator that utilizes an NPN transistor photovoltaic output for isolation up to 3000Vrms for one minute. It is often used in industrial, medical, automotive, and telecommunications applications that require signal isolation from environmental interference. The device is able to withstand up to 260°C or -40°C temperature operation and has low operating current.

Working Principle

CNY171FM optoisolator works on the principle of photovoltaic output. It consists of an infrared LED optically connected to a phototransistor. When the device is powered, the LED is energized and emits an infrared light that is received by the phototransistor and converted into a voltage signal. This voltage signal is then amplified using an NPN transistor.

The device is configurable to be used as either an output or input device and can be used in conjunction with other circuit components. It can be used with up to five TTL integrated circuits and provides noise immunity up to 3000Vrms. This optoisolator also features transient discharge suppression, making it suitable for capacitor switching, motor-drive circuitry, and other applications.

Applications

CNY171FM optoisolator is a versatile isolation component that offers excellent signal-to-noise ratio and excellent signal isolation performance in applications such as LED drivers, tachometers, and industrial relays. It is commonly used in industrial, medical, automotive, and telecommunications applications due to its high temperature operation capability.

The optoisolator is also used in intelligent displays, LCDs, and touch panels as a device for signal isolation. Additionally, it is used in communication system designs to provide isolation of sensitive signaling, providing noise immunity and improving outcomes. It is also used in motor drive systems, logic level translators, and DC/DC converters.

CNY171FM optoisolator is an economical and reliable device that provides efficient signal isolation, noise immunity, and high temperature operation. Its versatile nature makes it suitable for a wide range of applications, including those in industrial, medical, automotive, and telecommunications.

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