SI8455BA-B-IUR

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Digital Isolators are components used to provide electrical insulation between two circuits, which share a common electrical ground potential. Isolators are essential for preventing electrical interference and protection of electric circuits. The SI8455BA-B-IUR is a compact, high-performance digital isolator that offers unmatched performance in low-power applications.

The SI8455BA-B-IUR isolator uses the innovative Infineon insulation technology to provide excellent isolation and low power consumption. It is a robust, single-channel, MOSFET-based digital isolator with a blocking voltage rating of up to 59Vdc. It has an input voltage range of 3.0V to 16.5V and operates over a temperature range of -40C to 105C. The SI8455BA-B-IUR enables data transfer rates of up to 20 Mbps with good quality, and is compatible with both 3.3V and 5V logic levels.

The main application areas of the SI8455BA-B-IUR isolator are in industrial communication, automotive, consumer, medical, and hybrid electric vehicle (HEV) applications. The device offers high performance isolation to protect both the data lines and power supply lines from any external disturbances or fault conditions. It is used to isolate signals between two circuits, sensor or controller, and microcontroller based systems.

The SI8455BA-B-IUR isolator provides the highest level of protection with a maximum insulation rating of 620 Vdc. It is an ultra-low-power device that offers up to 75% lower power consumption compared to traditional isolators. This allows the device to be used in battery-powered applications and other low-power environments. Additionally, the device features advanced ESD protection to further enhance its overall reliability.

The working principle of the SI8455BA-B-IUR isolator is based on capacitive coupling technology. It uses a thin film of insulation material, such as Mylar, to form a highly reliable and safe barrier between two conductors. The isolator converts the electrical signal sent between the two circuits into a charge that is transferred through the thin Mylar film. This enables data transmission while protecting both circuits from any disruptive interference.

The SI8455BA-B-IUR is a high-performance, low-power digital isolator with excellent isolation capabilities. Its robust design, low-power operation, and superior insulation capabilities make it an ideal choice for applications in industrial communication, automotive, consumer, medical, and hybrid electric vehicle (HEV) applications.

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