ISO7140CCDBQR Isolators

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Digital isolators are devices used to ensure complete electrical isolation between two systems while still allowing a data signal to be communicated. The ISO7140CCDBQR isolator is a particularly useful type of digital isolator, widely used in applications that require high-speed communications in hostile environments. This article will explain the application field and working principle of the ISO7140CCDBQR digital isolator.

The ISO7140CCDBQR is a single-channel digital isolator with wide-drive low-resistance outputs and integrated protection features such as overcurrent, short circuit and overvoltage protection. It is designed for high-speed communications with low power consumption and excellent electrostatic discharge (ESD) protection. The ISO7140CCDBQR meets the requirements of the UL 1577 and IEC 60950 standards, and is available in a range of operating temperatures and packages.

The ISO7140CCDBQR is widely used in systems that must operate in harsh conditions and require reliable communications. These include telecommunication, industrial controls, medical monitoring, automotive, motion control, broadcast and military systems. The digital isolator can provide complete electrical isolation of sensitive electronics from high-voltage or noisy environments. It also protects the data in transit from electromagnetic interference (EMI) and data corruption.

The working principle of the ISO7140CCDBQR is based on a combination of two isolating technologies: transformer and optocoupler. The transformer isolates the high-voltage system from the low-voltage system via its magnetic core, which prevents the low-voltage system from seeing the voltage spikes of the high-voltage system. The optocoupler isolates the two systems by using a light-emitting diode (LED) to transmit digital data from one system to the other via an optically-coupled detector.

The ISO7140CCDBQR isolator also has a number of protection features, such as overcurrent, short circuit and overvoltage protection. These features help to ensure that the isolator is able to safely transmit data between two systems and protect the systems from damage. In addition, the isolation device also has a low transmission delay and low power consumption.

In summary, the ISO7140CCDBQR is a digital isolator that provides reliable data transmission between two systems in hostile environments. It combines transformer and optocoupler isolation to protect the data in transit from EMI and corruption, and has several integrated protection features. The ISO7140CCDBQR meets the requirements of the UL 1577 and IEC 60950 standards, and is widely used in telecommunication, industrial controls, medical monitoring, automotive, motion control, broadcast and military systems.

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