ISO7842FDWR

Common Mode Transient Immunity (Min):	100kV/µs
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 125°C
Voltage - Supply:	2.25 V ~ 5.5 V
Rise / Fall Time (Typ):	1.7ns, 1.9ns
Pulse Width Distortion (Max):	4.1ns
Propagation Delay tpLH / tpHL (Max):	16ns, 16ns
Data Rate:	100Mbps
Series:	--
Voltage - Isolation:	5700Vrms
Channel Type:	Unidirectional
Inputs - Side 1/Side 2:	2/2
Number of Channels:	4
Isolated Power:	No
Type:	General Purpose
Technology:	Capacitive Coupling
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

ISO7842FDWR is a digital isolator and it is a type of electrical isolation technology that is used to separate two electrically conductive parts of a circuit, such as high voltage and low voltage systems. Digital isolators are integrated circuits that provide electrical and antenna isolation, enable signal transfer between two circuits while preventing electrical current from passing downstream from the high-voltage side. This type of isolator has several applications and is extremely helpful in providing electrical isolation in applications like industrial motor drives, home automation systems, and automotive applications. In the following article, the application field and working principle of the ISO7842FDWR will be discussed.

Application Field

The ISO7842FDWR is a digital isolator used in a number of applications such as power systems, motor control systems, and automation systems for home and industrial applications. These isolators are primarily used to protect high-voltage systems and circuits by preventing a direct current from passing from one circuit to another, thus protecting the low-voltage system from potential damage. The ISO7842FDWR is used in a variety of applications and, due to its digital design, can be used in a number of high-speed applications. Additionally, the ISO7842FDWR can be used in harsh environments. The ISO7842FDWR is used to protect different types of circuits from damage due to high voltages. Examples of these circuits include computers, gateways, motor drives, and medical devices.

Working Principle

The ISO7842FDWR digital isolator works by integrating an electrical signal transmitted between two isolated circuits. It is designed to convert the electrical signals of one system to voltage levels compatible with the other system. The electrical circuit of the digital isolator is designed to allow an oscillating signal to pass through without passing any current. This is done using a galvanic isolation barrier between the two circuits. The barrier is typically made of silicon dioxide which is a non-conductive material.The functioning of the digital isolator is based on a differential amplifier that transmits an alternating signal. The signal is transferred from one circuit to the other by using optical coupling. Optical coupling uses light waves to transfer the alternating signal, thus enabling electrical isolation between the two circuits. The basis of the ISO7842FDWR operation is the transfer of the signal across the integrated optical device and the galvanic isolation barrier.

Conclusion

The ISO7842FDWR is a digital isolator that is commonly used in a variety of applications, from motor control systems to automation systems for homes. It is designed to protect high-voltage systems and circuits from damage due to high voltages. The ISO7842FDWR works by using an integrated electrical signal that is transmitted between two isolated circuits. The signal is transferred from one circuit to the other by using a galvanic isolation barrier and optical coupling. The functioning of the digital isolator is based on a differential amplifier that transmits an alternating signal.

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