4N35TVM

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An optoisolator, also known as an optocoupler, photocoupler, or optical isolator, is an integrated circuit device composed of a light-emitting diode (LED) and photodetector (typically a phototransistor). The 4N35TVM optoisolator is a transistor, photovoltaic output optoisolator with a high-reliability photocoupler that provide an interface between two electrical circuits that have different signal levels and/or power sources. It offers temperature stability, fast signal operation, and low-transformance output characteristics.

Application Field

The 4N35TVM optoisolator is ideally suited for a variety of applications, including data communication circuits, instrumentation and control systems, telecommunications relays, industrial process control circuits, signal interface, and light sensor circuits. It can also be used in devices which require galvanic isolation between the input and output signals, such as relay drivers, motor controllers, intelligent instrumentation and telemetry systems, or any other circuit where an electrical isolation between input and output is desired.

Working Principle

The 4N35TVM optoisolator works by using a light emitting diode (LED) as the input signal and the phototransistor as the output signal. The LED is driven by an external electrical signal, typically voltage or current, and is activated when the input signal exceeds the operating threshold. The activated LED emits light in the ultraviolet, visible, or infrared range, which is then detected by the phototransistor in the optoisolator. The phototransistor is then activated and outputs a corresponding electrical signal on its output terminals.

The 4N35TVM optoisolator offers temperature stability, fast signal operation, and low transformance output characteristics. The LED has a low-current consumption and low-voltage operation, while the phototransistor has a high-current gain and high-current operation with a low-voltage output. This combination of features enables the 4N35TVM optoisolator to provide excellent signal isolation, as well as a wide operating temperature range. It is also highly resistant to EMI and electrical noise, making it ideal for applications requiring high immunity to interference and signal integrity.

In summary, the 4N35TVM optoisolator is a reliable and versatile optoisolator that offers temperature stability, fast signal operation, and low-transformance output characteristics. It is ideally suited for a wide range of applications which require electrical isolation between input and output signals, such as data communication, instrumentation and control, industrial process control, and light sensor circuits.

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