FOD814S

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Optoisolators are special types of electronic circuits used to separate input signals from the output signals. This is accomplished through the use of an optically isolated phototransistor, which works by transferring electrical signals from one side of a circuit to the other without physical contact between the two sides. This type of isolation eliminates the potential for a short circuit, ground loops, and other undesired effects. The FOD814S optoisolator is a commonly used transistor, photovoltaic output optoisolator, offering galvanic isolation and a low-cost solution for many applications.

The FOD814S consists of a phototransistor and photodiode, which are housed in a single package with four pins. The photodiode is used to detect light and convert it into an electrical signal, while the phototransistor is used to amplify and transfer the signal to the output. The FOD814S has a few variations, such as an open-collector version and a version with a Schottky diode, both of which offer improved electrical performance and higher isolation. The FOD814S has a high input/output isolation of 5000V RMS , and a power dissipation rating of 400mW, making it suitable for a variety of applications.

The FOD814S is commonly used in a wide variety of applications where galvanic isolation is required. It is often used in communication systems, where it can provide a low-cost solution for isolating a low-voltage signal from a high-voltage or hazardous system. It is also used for motor speed controls, as it is capable of detecting low-level analog signals while providing isolation from the power circuit. Additionally, the FOD814S can be used in medical system applications, as it can provide isolation for patient monitoring systems to ensure that the patient is not exposed to potential harm from electrical disruptions.

The FOD814S optoisolator works by converting the input current to light energy which is then detected by the photodiode, which then produces an electrical current. The phototransistor amplifies the current and transfers it to the output. The device has a high input current of 5mA and a maximum output current of 50mA, and can operate at a wide range of temperatures, from 0°C to 85°C. Furthermore, the device is qualified to operate with a variety of input voltages, from 1.8V to 36V. This makes it suitable for a range of applications, including those requiring high-voltage isolation.

The FOD814S optoisolator is a commonly used device for providing electrical isolation between circuits, and its wide range of features makes it suitable for a variety of applications. With its low cost and high isolation, the FOD814S is an ideal choice for a variety of communication, motor speed control, and medical system applications.

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