ISO7830FDWW

Series:	--
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:	5700Vrms
Common Mode Transient Immunity (Min):	100kV/µs
Data Rate:	100Mbps
Propagation Delay tpLH / tpHL (Max):	16ns, 16ns
Pulse Width Distortion (Max):	4.1ns
Rise / Fall Time (Typ):	3.9ns, 3.9ns
Voltage - Supply:	2.25 V ~ 5.5 V
Operating Temperature:	-55°C ~ 125°C

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Digital Isolators have become a major technology in the world of electronic power regulation, providing isolation between two systems via an electrical connection. The ISO7830FDWW is a digital isolator that is designed to bridge the gap between different signals without physical contact. This application field and associated working principle are discussed in the following sections. ApplicationsThe ISO7830FDWW is designed for digital signal applications, providing isolation between two systems without the need for a physical connection. This makes the ISO7830FDWW an ideal choice for applications involving digital communication, such as between a controller and a motor, an amplifier and a microphone, or between two networks. Additionally, the digital isolator is capable of providing galvanic isolation of up to 5kV, allowing it to be used in high isolation applications. The ISO7830FDWW is also suitable for medical applications, due to its low ‘on-state’ resistance, allowing for a low power consumption. Furthermore, the digital isolation also allows the ISO7830FDWW to be used in situations where electrical noise could cause interference, as the isolation provided by the device eliminates any electromagnetic interference (EMI) between the two systems.Working PrincipleThe ISO7830FDWW operates on a digital signal conversion principle, where the input signal is first converted into a digital code before being transmitted across the isolator. The output signal is then converted back to its original form and sent to the other system. To achieve this, the ISO7830FDWW includes two main parts: a transmitter and a receiver. The transmitter converts the input signal to a digital code. The code is then transmitted across a high frequency current transformer (HFCT) or ultralow-voltage isolated (ULVI) channel. The channel is designed to block any direct current (DC) from one system to another, thereby providing the digital isolation between the two systems. The receiver converts the digital code back to its original form and sends it to the other system. The digital code is transmitted across the same HFCT or ULVI channel. The converter also includes an internal voltage regulator to ensure a constant voltage is transmitted across the channel, even if the input voltage varies. The ISO7830FDWW also has a low output leakage current of less than 1mA, allowing the isolator to maintain a low power consumption. The low output leakage current also ensures that the isolator is able to remain in an ‘on-state’ for long periods of time without significant power loss. ConclusionThe ISO7830FDWW is a digital isolator that is designed to bridge the gap between different signals without physical contact. It is suitable for digital signal applications, medical applications, and high isolation applications. As it operates on a digital signal conversion principle, the ISO7830FDWW uses a transmitter, a receiver, an HFCT or ULVI channel, and an internal voltage regulator to achieve isolation between the two systems. Additionally, the digital isolator also has a low output leakage current, allowing it to maintain a low power consumption.

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