SI8435BB-D-ISR

Common Mode Transient Immunity (Min):	25kV/µs (Typ)
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm 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:	Automotive, AEC-Q100
Voltage - Isolation:	2500Vrms
Channel Type:	Unidirectional
Inputs - Side 1/Side 2:	3/0
Number of Channels:	3
Isolated Power:	No
Type:	General Purpose
Technology:	Capacitive Coupling
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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What is a Digital Isolator

Digital isolators are electronic devices developed by tech companies that allow for exchanging data signals through a galvanic isolation barrier. In addition to the signal isolation barrier, digital isolators can also provide electrical safety by preventing the transmission of high voltage, current, and EMI signals from one signal path to another. The use of digital isolators has become a popular and reliable way for technology companies to ensure that their data signals remain protected and reliable over long distances or signal ranges.

SI8435BB-D-ISR Application Field and Working Principle

The SI8435BB-D-ISR is a digital isolator designed and developed by Silicon Labs. This digital isolator is part of the company’s “Isolated Power Supply” line and is designed for use in industrial and automotive applications. The device provides 1.2 kV isolation, low power consumption, high data rate transfer, and advanced EMI performance. The SI8435BB-D-ISR is compliant to industry-accepted safety standards and is suitable for high-speed digital signal transmissions.This digital isolator operates on the principle of capacitive electrical coupling. The SI8435BB-D-ISR contains two pairs of bi-directional capacitive couplers that are connected to form a data transmitting channel. One of the pair of capacitive couplers is connected to the input side of the device, while the other one is connected to the output side. The data that is transmitted through the two pairs of capacitive couplers is then converted and reconstructed on the output side of the device. This conversion process is accomplished by the device’s advanced electronic circuitry.The SI8435BB-D-ISR enables data transmission rates of up to 4 Mbps in all directions of signal flow. This device also provides a robust EMI performance with a common mode rejection ratio (CMRR) of up to 65 dB. Additionally, this digital isolator has an ultra-low leakage current rating of 10nA.The SI8435BB-D-ISR is designed for easy integration into existing industrial and automotive applications. This device utilizes a very compact 8-pin SOP package, allowing for it to be used in space-constrained applications. The SI8435BB-D-ISR is also available with a wide range of customization options including the option of having selectable output power (VCC) levels.Overall, the SI8435BB-D-ISR is a robust and reliable digital isolator designed to ensure that data is securely and reliably transmitted over long distances or signal ranges. The device provides 1.2 kV isolation, wide-band data rate operations, and a low-leakage current rating, making it an ideal solution for reliable data transmission applications.

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