VO615A-8X017T Isolators

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Optoisolators, also known as optocouplers, are electrical components which use light to isolate electrical signals between two disparate circuits. They can be used to provide electrical isolation, voltage level translation, and transient voltage protection. The VO615A-8X017T optoisolator is a transistor, photovoltaic output optoisolator specifically designed for applications requiring high speed, high photocurrent, and low output current capability.

The VO615A-8X017T optoisolator consists of a Gallium Arsenide (GaAs) infrared LED optically coupled to a Vertical Diffused MOS (VDMOS) FET. It is designed to provide current transfer responsivity of 5 A/W and output voltage of -10V. The optoisolator also features a high-speed switching time of up to 8 nanoseconds.

Application Field: The VO615A-8X017T optoisolator is ideal for high-speed, low-output current applications such as line receivers in telecommunications systems, power line protection, isolating analog signals, and protecting digital circuits from glitches or surges. It is also suitable for isolating relay control circuits and providing isolation between high-voltage and low-voltage circuits.

Working Principle:

The VO615A-8X017T optoisolator works on the principle of optical isolation. It consists of a GaAs infrared LED which transmits light to an optically isolated semiconductor device, such as a photodetector or an opto-FET. When the LED is energized, the photodetector or opto-FET produces a controlled amount of current, which is proportional to the amount of light emitted from the LED. The photodetector or opto-FET then controls the output from the optoisolator by turning on or off the output current. This allows for isolated operation between the input and output sides of the optoisolator.

The VO615A-8X017T optoisolator also features an internal diode which provides protection from reverse voltage and transients. The diode clamps the output voltage to -10V which protects the device from transients and keeps the signal levels at acceptable levels.

In summary, the VO615A-8X017T optoisolator provides high speed, high photocurrent, and low output current transfer capability for various applications, including line receivers, power line protection, isolating analog signals, and protecting digital circuits from glitches or surges. It is capable of providing electrical isolation, voltage level translation, and transient voltage protection. With its current transfer responsivity of 5 A/W and output voltage of -10V, the optoisolator is an ideal choice for many applications requiring the above features.

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