ISO7340CQDWQ1

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Digital isolators are electronic devices that provide galvanic isolation. They transmit digital signals from one side of the isolation barrier to the other without allowing high voltages or electric currents to pass. Digital isolators are used in applications such as motor control, power conversion, communications, medical device control, factory automation, and data acquisition. The ISO7340CQDWQ1 digital isolator is an IEC 61131-2 compliant 3-channel device with a power-on reset feature that is ideal for isolated control systems.

The ISO7340CQDWQ1 supports both analogue and digital inputs. Analogue input values in 0-10V range can be configured in either single ended or differential mode. Digital inputs are 3-channel inputs with a maximum bit rate of 3.3V logic. The ISO7340CQDWQ1 also features two channels of programmable open-drain outputs to provide further protection from overvoltage. The outputs are latched and can be used to control external relays or other components.

The core of the ISO7340CQDWQ1 features isolation technology to provide reliable signal transmission between a host and target device, even in the event of a surge. It has a common mode transient immunity of up to 4 kV, preventing damage when connected to high power lines or in hazardous environments. The device is designed for efficient power usage, and can operate with a single 3.3V input.

The ISO7340CQDWQ1 works by transmitting digital signals across an isolation barrier without allowing high voltage or electric current to pass. It utilises capacitive couplers and transformers for reliable data transmission without compromising signal quality. This ensures no ground loops or hazardous currents are created when the signal is transferred across the isolation barrier. The device also features an opto-coupler, providing a further layer of protection.

The ISO7340CQDWQ1 is designed for use in motor control, power conversion, communications, and many other applications. Its galvanic isolation eliminates the need for bulky external isolation components, significantly reducing system size and cost. This makes it ideal for use in small spaces and low-cost, low power applications where isolation is required. The device also meets crucial safety standards, allowing for reliable and secure operation in hazardous environments.

The ISO7340CQDWQ1 digital isolator is an ideal choice for a wide variety of applications, providing reliable data transmission with low power consumption. Its IEC 61131-2 compliance provides a number of advantages, such as isolation between low voltage components, surge protection, and safety. The device’s small size and competitive cost make it a great choice for system designers looking for an efficient and cost-effective solution.

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