SI8455BB-B-IS1R

Common Mode Transient Immunity (Min):	25kV/µs (Typ)
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply:	2.7 V ~ 5.5 V
Rise / Fall Time (Typ):	3.8ns, 2.8ns
Pulse Width Distortion (Max):	2.5ns
Propagation Delay tpLH / tpHL (Max):	9.5ns, 9.5ns
Data Rate:	150Mbps
Series:	--
Voltage - Isolation:	2500Vrms
Channel Type:	Unidirectional
Inputs - Side 1/Side 2:	5/0
Number of Channels:	5
Isolated Power:	No
Type:	General Purpose
Technology:	Capacitive Coupling
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Digital Isolators

Digital isolators have become an increasingly important component in electronic system designs today. The purpose of these isolators is to transfer digital signals with complete electrical isolation between circuits, while preventing interference due to ground loops or other noise sources. One of the most commonly used digital isolators is the SI8455BB-B-IS1R. This device provides an efficient isolation solution for industrial, medical, and consumer applications.

SI8455BB-B-IS1R Application Field

The SI8455BB-B-IS1R is ideal for applications such as isolating control signals and digital data signals over long distances, monitoring motor voltage and current, controlling stepper motors, and providing a means of isolating communications between two systems. This digital isolator has a wide temperature range and can withstand up to 8kV ESD surge voltage. It’s also suitable for Automation and Motion Control applications and can be used in combination with other components to create a complete system.

SI8455BB-B-IS1R Working Principle

The SI8455BB-B-IS1R digital isolator works by using magnetic field energy to transfer data between two points. This device is made up of a transmitter and a receiver section. The transmitter section receives a signal from the primary side of the system and then transmits a corresponding electrical signal over a secondary side without the use of electrical connections. The receiver converts this signal back to its original form and then sends it to the primary side.The SI8455BB-B-IS1R is based on a proprietary high-speed magnetic field mechanism. This allows for extremely high speeds (up to 1.6MHz) and extremely low power consumption (as low as 8mW). This magnetic field technology utilizes multiple unidirectional digital channels with a typical propagation delay of less than 500ns. This enables it to transfer large amounts of data quickly, reliably, and with minimal power consumption.

Conclusion

The SI8455BB-B-IS1R digital isolator provides a reliable and efficient isolation solution for industrial, medical, and consumer applications. This device has a wide temperature range and can withstand up to 8kV ESD surge voltage. Its proprietary high-speed magnetic field mechanism allows for extremely high speeds and very low power consumption. It’s suitable for Automation and Motion Control applications and is an ideal choice for applications needing to transfer digital signals over long distances with complete electrical isolation.

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