PS2833-4-A

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The PS2833-4-A optoisolator, manufactured by Littelfuse, is a 4-pin dual inline package optocoupler dual transistor-out photovoltaic output type. It is designed to provide electrical isolation between two isolated sections of a system, while allowing information or commands to be passed from one section to the other, while maintaining electrical insulation between the isolated sections.

The PS2833-4-A is based upon a photovoltaic output optoisolator, which uses two separate and distinct dip-switch configurations. One dip-switch configuration allows for a +5V power input, and the other dip-switch configuration allows for a 0V power input. The +5V power input is applied to the emitter of the phototransistor, while the 0V power input is applied to the collector of the phototransistor. This allows for the optoisolator to control its electrical separation from the two isolated systems, through the control of the photovoltaic output voltage.

This optocoupler dual transistor-out photovoltaic output type optoisolator is especially suitable for use in industrial, medical, automotive, and consumer applications. The PS2833-4-A’s optical isolation eliminates ground loops between the two systems, which helps reduce noise in the communication between those two systems. It also limits the flow of electrical current between two isolated systems, which makes the technology ideal for situations in which precision measurements must be taken. The electrical isolation provided by the optoisolator also helps to protect electronic equipment from voltage transients resulting from circuit changes in the two systems, providing increased safety in applications.

In addition, the PS2833-4-A optoisolator’s photovoltaic output makes it suitable for use in applications that require a wide dynamic range. The optoisolator is able to modulate its output voltage, allowing for a wide range of operating range and electrical isolation, making it an ideal choice for applications such as high speed data acquisition and processing, sensor interface and measuring circuitry, and protection circuitry for sensitive data or research projects.

The working principle behind the PS2833-4-A optoisolator is to use the optical isolation of the embedded phototransistor to control the electrical separation between the two isolated systems and their respective signal pathways. The phototransistor is coupled to two separate dip-switch configurations, allowing for a +5V power input and a 0V power input. The +5V power input is applied to the emitter of the phototransistor, while the 0V power input is applied to the collector of the phototransistor. This provides the necessary voltage bias to the phototransistor in order to control the level of electrical insulation between the two isolated systems, through the control of the photovoltaic output voltage. The modulation of the output voltage provides the necessary electrical insulation for precision measurements or delicate circuitry, while also providing high noise immunity and a wide range of operating range.

The PS2833-4-A optoisolator is a versatile optocoupler, which is suitable for a variety of different applications and systems, providing both electrical isolation and high noise immunity. The applications in which the PS2833-4-A optoisolator can be used range from industrial, medical, automotive, and consumer applications, to high speed data acquisition and processing, sensor interface, and protection circuitry for sensitive data.

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