SI8421BD-D-IS

Series:	Automotive, AEC-Q100
Packaging:	Tube
Part Status:	Active
Technology:	Capacitive Coupling
Type:	General Purpose
Isolated Power:	No
Number of Channels:	2
Inputs - Side 1/Side 2:	1/1
Channel Type:	Unidirectional
Voltage - Isolation:	5000Vrms
Common Mode Transient Immunity (Min):	20kV/µs
Data Rate:	150Mbps
Propagation Delay tpLH / tpHL (Max):	11ns, 11ns
Pulse Width Distortion (Max):	3ns
Rise / Fall Time (Typ):	2ns, 2ns
Voltage - Supply:	2.7 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 Isolators are a type of semiconductor devices, specifically electrical transceivers, that allows electrical signal communication between two circuits while maintaining isolation between them. They are used to help protect sensitive electronic equipment by providing galvanic isolation, and they are also capable of withstanding a variety of electromagnetic environments. In addition to their standard isolation functions, some isolators are also equipped with a variety of additional safety features, such as overvoltage protection, short-circuit protection, reverse current blocking, and power-on reset. Digital isolators are used in industrial applications, computer networks, communication systems, and medical equipment.The SI8421BD-D-IS is an example of a digital isolator. It provides galvanic isolation up to 1000 Volts, and is capable of withstanding an electromagnetic environment up to 10 kV/μs. It has a maximum data rate of 50 Mbps, and provides either half-duplex or full-duplex communication. In addition, the SI8421BD-D-IS is also equipped with integrated overvoltage protection, short-circuit protection, reverse current blocking, and power-on reset.The SI8421BD-D-IS digital isolator is particularly suited for industrial applications such as motor drives and motion control systems, as well as communication and computer networking applications. Its 1000-Volt isolation capability allows it to protect sensitive equipment from high-voltage surges that could cause serious damage. Furthermore, the SI8421BD-D-IS isolator’s integrated overvoltage protection, short-circuit protection, reverse current blocking, and power-on reset features ensure safe, reliable operation in a wide variety of applications.The working principle of the SI8421BD-D-IS isolator is based on the principles of galvanic isolation. The device consists of two independent parts: the primary side, which is connected to the signal source, and the secondary side, which is connected to the receiver. The information that is transmitted between the two is converted into an electrical signal, which is transmitted through a transformer. The transformer provides galvanic isolation between the two sides, preventing any fluctuations in the input signal from affecting the output signal.In order to ensure proper operation, the SI8421BD-D-IS isolator also includes built-in circuits to guard against overvoltage, short-circuit, reverse current, and power-on reset conditions. In the event of an overvoltage, the device will shut down to protect its components and circuitry. Similarly, if a short-circuit or reverse current is detected, the device will also be shut down to protect itself from damage. Finally, the on-board power-on reset circuit will ensure that the device starts up properly after a power-down event.Overall, the SI8421BD-D-IS digital isolator is a perfect choice for applications where galvanic isolation is required to provide reliable operation and protect sensitive equipment from external interference. Its 1000-Volt isolation capability and integrated safety features make it well suited for a variety of industrial and communication applications. The device is also simple to deploy and configure, making it an ideal choice for those seeking an efficient, reliable way to provide signal isolation and protection.

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