FOD0720R2 Isolators

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Optoisolators, also referred to as optocouplers or optically electrically isolated devices, are components used to electrically isolate signals. The FOD0720R2 is a type of optoisolator with logic output. Understanding its application field and working principle is helpful in determining if it is right for a particular application.

Application Field

The FOD0720R2 is a logic output optoisolator that features a GaAlAs LED, which is optically coupled with an integrated circuit. It has a high degree of insulation resistance between up to 1500 Vac and up to 10GΩ. The FOD0720R2 is often used in industrial, automotive, computer, and home appliance applications. It is particularly beneficial in applications where signal isolation between a power supply and a controller (such as a microcontroller or PLC) is essential.

Working Principle

The FOD0720R2 operates on the principal of opto-coupling. When an input signal is applied to the input side, the LED on the input side emits light that optically couples with the integrated circuit on the output side. The output side integrated circuit will then produce a high or low electrical signal depending on the input signal. This high or low level output signal is then used to control or operate the application.

FOD0720R2 optocouplers have a number of advantages when compared to traditional optocouplers. For example, they are capable of exchanging high frequency signals up to 500kHz. They also have a low power consumption of around 500µA, excellent common-mode noise rejection ratio of approximately 40dB, and wide temperature range performance.

The FOD0720R2 optocoupler also features such as over-voltage and over-current protection, built-in transient protection, built-in EMC/EMI filter, and Surge Immunity protection.

Overall, the FOD0720R2 fits into the logic output optoisolator category, and it is suitable for industrial, automotive, computer, and home appliance applications, delivering excellent performance in applications where signal isolation between a power supply and a controller is essential.

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