IL717T-3E

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Digital isolators are electronic components intended to provide galvanic isolation between two circuits. This isolation allows systems to continue working even when power is lost on one side. Digital isolators are commonly used in applications such as telecommunication, instrumentation, automotive, industrial automation, and medical equipment. The IL717T-3E is a digital isolator designed for use in such applications.

The IL717T-3E uses high-speed CMOS technology for its digital logic signaling, as well as transformer isolation technology to provide up to 3,000V galvanic isolation. It is capable of handling input/output voltages up to 24V, and is shielded against EMI/RFI interference. The device also integrates a slew rate limit to improve electromagnetic compatibility and reduce radiated emissions. Additionally, the IL717T-3E provides immunity from etching displacement currents and subharmonic oscillations.

The main purpose of the IL717T-3E is to provide isolation between two circuits while ensuring that data is properly transmitted between them. This is accomplished by utilizing two full digital circuits, each with their own logic levels and control lines. These two circuits communicate via an isolated “data link” which provides up to 3,000V of galvanic isolation. Additionally, the IL717T-3E can also be used to interface between two different logic families, such as TTL and CMOS.

The primary application for the IL717T-3E is as a “data link” in industrial automation. Commonly, a programmable logic controller (PLC) would be connected to one side of the digital isolator, while the other side could be connected to a variety of other equipment, such as sensors, motors, and drives. The data link provided by the digital isolator would then allow the PLC to communicate with the other pieces of equipment without any risk of ground loops or interference.

Another application for the IL717T-3E is as a “safety isolator” in industrial automation systems. Here, the digital isolator is used to provide separation between a system’s high-voltage circuitry and its low-voltage, control circuitry. This prevents the possibility of harmful voltage transients from travelling through the system, thus preventing damage to the system and its components.

In summary, the IL717T-3E is a digital isolator capable of handling high-speed digital data and providing up to 3,000V of galvanic isolation. It is most commonly used for providing a data link in industrial automation systems and for providing safety isolation between high-voltage and low-voltage circuit elements.

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