SI8621BC-B-IS

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Digital isolators have become increasingly popular in many industrial fields due to the growing need for reliable isolation and safety protection. One such isolator is the SI8621BC-B-IS. This isolator combines a transformer-isolated bus isolator with an optically isolated digital input and output signals. It is an isolated interface designed to protect isolated circuits from the hazards associated with the digital signal interface.

The SI8621BC-B-IS digital isolator supports TTL compatible signals, with a data rate of up to 10 Mbps. The isolation output buffers offer a wide voltage level range of 0.9 to 5.5V. The device provides data isolation of up to 1,500VRMS, meeting the requirements of many safety and reliability standards. Additional features include a bus isolation capability, in-rush current limiting, and over-current protection. It also features open-circuit enabler (OCE) for safe power-up and power-down when used in critical systems.

The working principle of the SI8621BC-B-IS digital isolator is quite straightforward. It uses an optically-isolated transformer which prevents the electrical transfer of signals between the digital input and output signals. This way, isolated circuits remain safely isolated from each other. To ensure the highest level of isolation, the device also has a bus-isolation feature. The device is powered from the common source, which provides the isolation and allows for multiple channels of communication between the digital inputs and outputs.

The SI8621BC-B-IS digital isolator is used for a wide variety of applications. It can be utilized in automotive, medical, industrial, and communication systems to protect circuits and critical components from hazardous voltages. It can be used for automated electronic equipment testing, which requires high-level isolation. It can also be used in medical applications, as it is approved for use in patient environments per EN60601.

The SI8621BC-B-IS digital isolator is a reliable and highly durable device with a wide variety of applications. With its high-level isolation and bus isolation features, it is ideal for use in critical systems requiring the highest level of protection. It is an excellent choice for systems where safety is paramount, such as those in the medical and automotive industries.

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