ISO7730FDW

Common Mode Transient Immunity (Min):	40kV/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):	1.3ns, 1.4ns
Pulse Width Distortion (Max):	4.9ns
Propagation Delay tpLH / tpHL (Max):	16ns, 16ns
Data Rate:	100Mbps
Series:	--
Voltage - Isolation:	5000Vrms
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:	Active
Packaging:	Tube

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Digital Isolators - ISO7730FDW Application Field and Working Principle

Digital isolators are a form of components found in modern electronic products. They are primarily used to keep electrical energy isolated from sensitive devices to ensure reliable operation. The ISO7730FDW is a digital isolator designed by Texas Instruments, and is widely used for its high performance and low power consumption.The ISO7730FDW can be used to provide electrical isolation between two systems. It isolates hazardous voltage sources, such as mains electricity, to keep electric shocks from reaching components and personnel. It can also be used to prevent noise from entering sensitive circuitry and causing it to become unstable, which can result in data losses or system crashes.The ISO7730FDW uses an isolation technique called full digital waveform (FDW). This technique provides electrical isolation using a digital process, which eliminates the need for bulky analog components. It also simplifies the overall design process, allowing for faster and more efficient designs.The working principle of the ISO7730FDW is based on a two-stage process. First, a capacitive electrical charge is created across the input and output channels. This charge is used as the basis for the digital waveform. Then, the digital waveform is divided into a series of two-phase, voltage-time waveforms. These two-phase waveforms are then used to transfer the charge between the two circuits.The ISO7730FDW uses two digital waveform blocks (WOBs) to perform this task. Each WOB is connected to the input and output channels via an isolator. The WOBs send and receive digital data, which is then translated into a charge across the input and output channels. This process is repeated multiple times during a single transfer cycle, and allows data to be transferred without any degradation.The ISO7730FDW also features several safeguards. These include fail-safe logic, which disables the device when a fault is detected and guarantees that no further data transfer takes place. Other safeguards include voltage regulators, which prevent the device from becoming overloaded.Overall, the ISO7730FDW is an efficient and reliable device for isolating two circuits. It is designed for high-speed data transfer, and is well-suited for use in applications that require reliable digital isolation. The device is capable of providing reliable and secure performance in a wide variety of applications.

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