SI8635ET-IS

Series:	Automotive, AEC-Q100
Packaging:	Tube
Part Status:	Active
Technology:	Capacitive Coupling
Type:	General Purpose
Isolated Power:	No
Number of Channels:	3
Inputs - Side 1/Side 2:	3/0
Channel Type:	Unidirectional
Voltage - Isolation:	5000Vrms
Common Mode Transient Immunity (Min):	60kV/µs
Data Rate:	150Mbps
Propagation Delay tpLH / tpHL (Max):	13ns, 13ns
Pulse Width Distortion (Max):	4.5ns
Rise / Fall Time (Typ):	2.5ns, 2.5ns
Voltage - Supply:	2.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	16-SOIC

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Digital Isolators

Digital isolation is a technology that electrically insulates system components from one another, enabling data signals to pass through while maintaining complete electrical isolation between the components. This technology is used in applications that require absolute safety and high levels of performance. SI8635ET-IS is a digital isolator made by Silicon Labs, designed for industrial and consumer applications. This article will discuss the application fields and working principles of the SI8635ET-IS digital isolator.

Application Fields of SI8635ET-IS Digital Isolator

The SI8635ET-IS digital isolator is suitable for a wide range of industrial applications, including motor drives and power supplies. In motor drives, the isolator serves to protect electronic components from high-voltage variations, as well as to reduce electromagnetic interference (EMI) and radio frequency interference (RFI). In power supplies, it prevents spikes from reaching sensitive equipment and offers a high level of safety through isolation.The SI8635ET-IS is also widely used in consumer applications, such as home automation systems, home theaters, and gaming systems. In these applications, the SI8635ET-IS isolator ensures that the signals sent between components remain secure, reducing the risk of security breaches. It also protects electronic devices from power surges, allowing the system to operate reliably and efficiently.

Working Principle of SI8635ET-IS Digital Isolator

The SI8635ET-IS digital isolator works by creating a barrier between two circuits. This barrier prevents electrons from flowing directly from one circuit to the other, and instead regulates the flow of electrons by using a special device known as a coupling capacitor.The SI8635ET-IS digital isolator is a capacitive isolator, meaning it relies on capacitors to regulate the flow of electrons. The capacitor works by storing a small amount of charge, which is then used to regulate the flow of electrons between the two circuits. This stored charge acts as an insulator, preventing electrons from flowing from one circuit to the other.The device also features a Built-In eFuse that helps protect against electrical overstress (EOS). This built-in feature ensures that the device automatically turns off when the voltage exceeds a certain limit, preventing damage to both circuits.

Conclusion

The SI8635ET-IS digital isolator is designed for a wide range of industrial and consumer applications. It works by creating a barrier between two circuits, using a coupling capacitor to regulate the flow of electrons between the two circuits. The built-in eFuse helps protect against electrical overstress, ensuring that the device does not cause damage to the connected circuits.

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