ACPL-W347-560E

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ACPL-W347-560E as an Isolator:

ACPL-W347-560E, a bi-directional optically coupled isolator, is widely used in various applications due to its high-common-mode transient immunity and tolerance. It can be classified into the category of Isolators - Gate Drivers.

Application Field:

ACPL-W347-560E is a specialized component designed to enhance the isolation between sensor nodes and uCs, PLCs, or FPGAs. It acts as a digital isolator LED which is used as a replacement for the traditional optoisolator, featuring 2-channel bi-directional electrical isolation of up to 5300 Vrms, high common-mode rejection ratio for both rated supply and port-to-port isolation, and high common-mode transient immunity.

Furthermore, the device can also be used in automotive ignition control systems, applications such as motor control, digital lighting control, and signal transmission for systems operating in harsh industrial environments. Additionally, it is suitable for data communications, various analog and digital logic systems as well as isolated power applications that require high-speed signal transmission.

Working Principle:

ACPL-W347-560E isolators employ an LED that illuminates a light detector, thus isolating the input from the output, allowing data to be transmitted from the first channel to the second one. The device has two CMOS driven LEDs, connected to each other and the two signal pins, that illuminate one detector. The detector contains two photo transistors and a common emitter for each one of the signals. The device works as a digital isolator, which means, when a voltage is applied to the input LED, the current flows through the photo transistors to the output, while the voltage of the output remains constant.

The device\'s high tolerance and high electric field withstand helps it to accommodate any drift in signal levels. Furthermore, the CMOS driven LEDs allow low power consumption and high noise immunity, providing a long-term reliable performance. And since the device has high current transfer ratio, it is able to achieve high isolation voltage.

In conclusion, ACPL-W347-560E is a high-performance isolator belonging to the category of Isolators - Gate Drivers, with excellent common-mode transient immunity. It is widely used for applications such as motor control, digital lighting control, automotive ignition control systems, signal transmission systems operating in harsh industrial environments, and many more. The working principle is based on two CMOS driven LEDs connected to each other and the two signal pins, illuminating one detector. Furthermore, the device has a high tolerance, good electric field withstand, low power consumption and high noise immunity.

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