FOD8001R2 Isolators

Optoisolators are devices which can use light to provide effective electrical isolation between two parts of a circuit. The FOD8001R2 is a logic output type Optoisolator which can be used to couple light from one circuit into another, providing electrical insulation and signal coupling between the two circuits.

Applications

The FOD8001R2 is mostly used for interfacing between digital outputs and input/output systems, particularly for protection against over-voltage transients. It can also be used to provide a means of signal transmission between two circuits in environments where electrical isolation is required for safety or for meeting electrical standards. Some other applications include logic level shifting, communication line protection, signal relay circuits, and noise suppression.

Working Principle

The FOD8001R2 utilises an LED (light emitting diode) and a phototransistor to provide electrical isolation between two different circuits. When the input is activated, the LED is energised, emitting light which causes the phototransistor to turn on and off. This creates a voltage across the collector and emitter of the phototransistor, which is proportional to the input voltage. The voltage can then be used as the output of the FOD8001R2, providing electrical isolation between the two circuits.

Benefits

One of the key benefits of opting for the FOD8001R2 is the ability to provide electrical insulation between two circuits. This helps to eliminate any risks of sparking or shorting between the two different circuits. Additionally, the FOD8001R2 is also relatively easy to operate compared to other types of optoisolators. It has an open collector output, which means that the output signal can be connected to a wide range of devices. The FOD8001R2 also has a relatively low drive current, making it suitable for low power applications.

Conclusion

The FOD8001R2 is an optoisolator which utilises LEDs and phototransistors to provide effective electrical isolation between two circuits. It is mostly used for interfacing between digital outputs and input/output systems, and can also be used in a variety of other applications. Additionally, it also has the benefit of being relatively easy to operate and has a low drive current, making it suitable for low power applications.