PS9303L2-V-AX

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Optoisolators – Logic Output came into existent since 1973. They act as active electrical signal transmitters and receivers. In their structure, they are completed with optologic components and electronic components. They transmit electrical signal very well from isolating two circuits even from different circuits. As for the PS9303L2-V-AX, the main function is that it is a Logic Output with High Speed Switching.

The PS9303L2-V-AX is a solid-state isolator, developed using high speed organic electro-optics. It has a high speed response time of 6 nsec typical and offers voltage isolation up to 4000 VRMS. It usually comes with two electrodes for input/output and are furnished in the DIP and SMD type packages. The temperature range for the PS9303L2-V-AX is -40℃～+85℃.

The application fields of the PS9303L2-V-AX are mainly used in optical grids, circuit boards, plasma displays, televisions and computers. With its logic output and fast response time, it is the ideal choice for applications such as digital logic interface, system protection, communication circuit designs, digital signal isolation, signal reception and generation, EMI reduction and ESD protection etc.

As for the working principle of the PS9303L2-V-AX, its core principal is the optoelectronic components. Inside the isolator, there is a LED which is used to convert the electrical signal to light signal. This light signal is transmittable to the other side of the isolator. A photo detector is used to convert the light signal back into electrical one when it can detect the light signal. These two components are responsible for the signal transmission.

Besides the optoelectronic components, there is also an electronic component inside this isolator, the RC circuit. It senses the voltage changes at the input and then parallel to the LED and the photo diode. The RC circuit is able to reduce the inrush current of the LED, which is necessary for performing a better light transmission.

The working of this isolator is very simple. When there is an external input signal, the voltage changes can be sensed by the RC circuit. The RC circuit then boosts the input voltage by reducing the voltage and current. This will direct the LED to emit the corresponding light signal. The photo diode at the other side can detect the light signal and convert it to an output signal. Then the output signal can be used to control the system.

In conclusion, PS9303L2-V-AX is an optical isolator belonging to the Logic Output group. It is mainly used in optical grids, circuit boards, plasma displays, televisions and computers.Its RC circuit can reduce the inrush current of LED for a better transmission and its response time is 6 nsec typical. It is able to perform a reliable signal between two circuits with its fast response and great isolation capability.

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