FOD2712AV

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Optoisolators - Transistor, Photovoltaic Output

The FOD2712AV is a photovoltaic output transistor optoisolator device which is used for electrical isolation of input and output circuits. It is specifically designed for transferring digital signals and contains a phototransistor, an infrared light emitting diode, and housing. This optoisolator utilizes an NPN transistor such that its emitter-collector voltage can switch between 0V and a high level voltage.

Application field

The FOD2712AV is typically used in electronic systems with a high-side switching, where it is required to isolate the driving and controlled circuits from one another. This device is especially useful in applications where it is necessary to prevent service conflicts or for high-power drives and motor starter control. These optoisolators are used in a wide range of industries for power switches, pulser circuits, power amplifiers, detection systems, and protection systems.

Working Principle

The FOD2712AV is a photovoltaic output optoisolator device and it works by converting input electrical signals into light signals. A light signal is generated upon receiving an electrical signal which is electronically isolated from the output circuit. When the light emitting diode (LED) is activated, it projects a light pulse at a given frequency into the photosensitive element (transistor). This light pulse is then converted into an electric current that is sufficient to drive the transistor output. The transistor then transfers this electric current to the output circuit or load, thus transferring the digital signal from input to output.

This optoisolator device offers a high isolation voltage up to 5kVrms and is also able to withstand high surge energies of up to 5 J and 10A peak current, ensuring a reliable isolation of the input and output circuits. It also offers a fast switching time, thus ensuring a fast data transmission rate. Additionally, its high sensitivity allows it to be used in low power applications.

Conclusion

The FOD2712AV is a photovoltaic output transistor optoisolator device with a high isolation voltage of 5kVrms and high surge energy rating of up to 5J and 10A peak current. This optoisolator is specifically designed for transferring digital signals and is mainly used in electronic systems with high-side switching. It offers a high sensitivity, as well as a fast switching time which results in a high data transfer rate. Due to its efficient performance, this optoisolator device has been widely adopted in a variety of industrial applications.

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