SI8451BB-B-IS1R

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Digital isolators are a type of electrical isolation device which helps to eliminate the transfer of common mode noise between two sets of I/O circuits. The SI8451BB-B-IS1R device is a high isolation, bidirectional Digital Isolator for bi-directional optocoupler communication. It provides for the data transmission between two separate systems while keeping them electrically isolated.

This non-isolated bidirectional and low voltage device features on-board logic with a 4-bit serial data input and output. It is capable of a data rate of 32 KHz and is EMI approved for meeting IEC60601 safety standards. The device is compatible with many bus protocols including I²C, SMBus, and others. It has a typical isolation voltage rating of 4kV, which makes it suitable for many high isolation applications like Control System, Industrial Coupler, and Industrial Robot.

The SI8451BB-B-IS1R works by providing isolation between the input and output, allowing for bi-directional signal transmission. This is done by providing a voltage-mode power supply with a single chip to power both sides. The two sides are electrically isolated using an IGBT based isolation barrier, which creates a barrier between the two, preventing noise from traveling between the two systems. This isolation barrier uses two optocouplers to provide the isolation, which ensures a high level of isolation and protects the data integrity.

The logic on the device allows for data transmission and reception between the two independent systems, providing for data integrity and low power consumption. The data input and output can be programmed to meet specific application needs, making it suitable for high-speed and low-power applications such as those found in the control system, industrial coupler, or industrial robot fields. The device is also EMC and EMI compliant which makes it suitable for areas with rigorous safety requirements.

The SI8451BB-B-IS1R is an invaluable asset in any industrial application where high isolation and bidirectional communication is required. Its high isolation ratings, low power consumption and flexible data input and output make it ideal for high-speed and low power applications. The device offers a high degree of protection from common mode noise while providing fast and reliable data transmission and reception.

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