PS9822-2-L-AX

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The PS9822-2-L-AX is part of the Optoisolators - Logic Output family. It typically functions as an interface between low voltage, digital logic circuits and higher voltage/current systems. It does this by providing isolated optical coupling between the two circuits. This isolator utilizes an LED as its optical source and a built-in photo detector circuit, the PS9822-2-L-AX can connect a low voltage digital logic design to industrial controllers and sensors.The PS9822-2-L-AX’s input LED and output detector are electrically insulated, providing up to 5,000 V rms of isolation between input and output. The device also has a wide common mode transient immunity of 20,000 V/µs, coming with an output hold current of 5 mA and an isolation resistance up to 2,000 megaohms at 500 V DC.Key features of the PS9822-2-L-AX include small size and low power consumption, the capability to operate in a variety of temperature range from -40 to +85 ℃, and a high compliance voltage up to five times the rated working voltage, making it appropriate for a variety of circuits.

Working Principle

The basic principle of an Optoisolator - Logic Output is that it provides an electrical isolation between the input and output. It does this by using an LED to provide the optical isolation, and a photodetector to couple the far side of the optical link.The PS9822-2-L-AX is an example of this working principle. When the input side LED is illuminated by an external signal, the photo detector on the output side is illuminated by the LED. This creates an electrical current flow across the optical link which triggers a signal on the output side of the device.The electrical isolation provided by the LEDs and photo detector has the effect of preventing interference between the circuits on either side of the optical isolation link.

Applications

The PS9822-2-L-AX is a popular choice for many types of industrial applications, including but not limited to: home and controlled automation, lighting control, motor speed or RPM control, electronic motor protections, medical equipment, and interfacing to computer controllers and analog-to-digital converters.The wide common mode transient immunity and compliance voltage make the PS9822-2-L-AX very useful for interfacing to PLCs (programmable logic controllers), motion control systems, and process control systems. It can also be used as a digital isolator in a variety of power monitoring and control applications. The device\'s small size and low power consumption makes it ideal for applications with limited space or requiring high isolation current. Moreover, its operating temperature range makes it suitable for use in high temperature, industrial environments.

Conclusion

The PS9822-2-L-AX is an example of an Optoisolator - Logic Output that provides optical isolation between the input and output. It features an LED as its optical source and a built-in photo detector circuit, allowing it to connect low voltage, digital logic designs to higher current systems.The device’s compliance voltage and common mode transient immunity provide a high amount of electrical isolation, allowing for a range of applications. Its small size and low power consumption also allow for use in tighter, power-limited space. All of these features combine to make the PS9822-2-L-AX a popular choice for applications such as home and industrial automation, motor speed control, and power monitoring in a variety of environments.

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