OPIA802DTU

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OPIA802DTU is an Optoisolator – Transistor, Photovoltaic Output device. This device functions as a voltage interface by providing electrical isolation between the input and output circuits. These optocouplers rely on a light source to transmit a signal between two isolated circuits. This type of device is often used in applications to ensure noise immunity in communications systems.

The OPIA802DTU is a package-integrated optocoupler that consists of an infrared light-emitting diode, a high-gain silicon NPN phototransistor, and a built-in zener diode in a 4-pin dual in-line package. It offers high input-to-output isolation capability and good input-to-output signal isolation. The isolation voltage is 8 kVrms between the the input and output circuits, with a frequency of 50 Hz to 1000 Hz.

The OPIA802DTU transmits signals through optical isolation of a single ended input and a single ended output. It has a saturation voltage of 0.3V when operating under the voltage DC load conditions of 10mA. The dynamic response of this device is rapid, suitably operating in the millisecond range for both rising and falling output currents.

The working principle of the OPIA802DTU optocoupler is primarily based on the conversion of light energy into electrical energy. The device is powered up when an electrical signal is applied to the input. This input signal is converted to light by the LED and the light is then emitted towards the phototransistor. This light signal is then converted by the phototransistor into an electrical current, which is further amplified and used to drive the output.

The OPIA802DTU offers several advantages over traditional optoisolators. It offers excellent input-to-output isolation, ensuring immunity from electrical noise and ground loop currents. Its compact size requires a minimal amount of space, making it ideal for use in cramped industrial and automotive spaces. Additionally, it is able to operate reliably in low voltage, low current applications due to its low saturation voltage and its high-gain phototransistor.

The OPIA802DTU provides an excellent solution for both safety and noise immunity requirements in industrial and consumer electronic applications. Common applications for this device include motor control, low voltage/low current active monitoring, automotive electronic components, communication interface devices, and digital signal interfaces. With its compact size, excellent performance, and high isolation voltage, the OPIA802DTU is an ideal choice for those looking for an optoisolator with excellent noise immunity.

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