SI8380S-IU

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Digital Isolators

A digital isolator is an electronic circuit used to transfer electrical signals between two circuits by electro-magnetic coupling. It provides galvanic isolation and keeps signal integrity intact. An example of a digital isolator is the SI8380S-IU.

The SI8380S-IU is an integrated circuit for multiplexed applications. It provides three channels of matched digital isolation, allowing for data transmission without cross-interference. This isolator has a total power dissipation rating of 2W, a propagation delay of 37ns, and a turn-on delay of 75ns. It also has a high isolation voltage of up to 3750Vrms and ESD protection up to 8kV contact and 15kV air discharge.

The SI8380S-IU\'s applications include industrial automation, machine vision systems, motors, automotive sensors, and AC / DC converters. It provides isolation between the load circuits of these systems, allowing them to operate safely and stable in demanding environments. Its features, including a low skew, low propagation delay, and fast turn-on time, make it an ideal choice for industrial applications.

The SI8380S-IU has two separate power inputs: one for the signal side and one for the load side. On the signal side, the operator will provide the power signal they wish to isolate and transmit to the load side. On the load side, a power rail is provided to power the system on the load side of the signal. This isolator uses an opto-coupled gate to achieve isolation between the signal side and the load side.

The opto-coupled gate blocks any high-frequency signals from interfering with the signal, while still allowing for data to be transmitted from the signal side to the load side. The opto-coupled gate also ensures that there is no direct electrical connection between the two sides. This way, regardless of the loads or conditions on each side of the signal, data will remain intact and isolated.

The SI8380S-IU also has a temperature range of -40 to +85-degree Celsius, making it well-suited for operating in a variety of harsh environmental conditions. It also has surge protection features to protect against fluctuations and sudden power outages. To ensure that the signal being transmitted is not affected by interference, the circuit also has noise suppression and noise isolation features.

The SI8380S-IU is a low-cost and versatile industrial-grade digital isolator. Its high isolation voltage, fast turn-on time, and surge protection features make it an ideal choice for industrial applications. Its opto-coupled gate ensures data integrity, even in harsh environments. Overall, this isolator is an excellent choice for protecting sensitive electrical systems.

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