SI8621BB-B-IS

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Digital isolators are used to isolate two circuits by transferring digital signals, while preventing components on the secondary side from coming into contact with the primary side\'s electric environment. The SI8621BB-B-IS is a digital isolator in the Silicon Labs family of products. The product provides up to 100Mbps data transfer rate over an isolation barrier of 2250Vrms.

The SI8621BB-B-IS \'s application field includes industrial, medical, and automatic control equipment, products that need protection and signal isolation of individual I/O channels, renewable energy inverters for communication isolation, and field bus isolation. It provides 8-channels of high speed, low skew latching isolator, with 5ns maximum propagation delay.

The SI8621BB-B-IS isolator works by transfering digital signals from the primary side to the secondary side. The signals on these two sides are isolated from each other electrically. The isolator uses Silicon Labs\' proprietary iCoupler® technology to combine the isolation barrier with CMOS level-shifting capabilities to ensure robust performance. The primary side transmits data and clock signals over a series of capacitors, while the secondary side interprets the signals and extracts the information.

The SI8621BB-B-IS isolator uses high-current safety backflow diode protection, which provides 1500V of isolation voltage and health protection for the device, as it shares the same power supply as the primary side. The part also has a long quiescent current shutdown mode, which reduces power consumption to just 16µA.

The key features of the SI8621BB-B-IS digital isolator include its fast propagation delay of 5ns, wide operating temperature range of -40°C to +125°C, reduced EMI, high data transfer rates up to 100 Mbps, and its wide bus interface compatible with industry standards such as I2C, SPI, UART, SMBus, and CAN Bus.

The SI8621BB-B-IS digital isolator offers protection against overvoltage, ESD, EMI, and real time clock accuracy at low temperatures and is also RoHS-compliant and compatible with a wide range of operating systems. The isolator also has a sleep mode that reduces power consumption to 0.1µA..

In conclusion, the SI8621BB-B-IS digital isolator offers a wide variety of features, such as its fast propagation delay, wide operating temperature range, reduced EMI, and high data transfer rates for a wide range of applications. The digital isolator is suitable for industrial, medical, and automatic control equipment, products that need protection and signal isolation of individual I/O channels, renewable energy inverters for communication isolation, and field bus isolation. It provides robust performance and health protection, as well as low power consumption.

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