HCPL-7723-320E

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Optoisolators are transducers that use optical techniques in order to provide electrical isolation between two circuits. This protects the circuits from each other, while still allowing them to communicate. One of the most common types of optoisolators are logic output optoisolators, which uses LEDs to create logic-level outputs that are electrically isolated from the input signals. An example of a logic output optoisolator is the HCPL-7723-320E.

The HCPL-7723-320E is a GaAsP-LED optoisolator with 6 pins, including a logic level output. It features high current transfers of 1.5mA to logic levels as low as 2.0V. The typical propagation delay time is 2.0µs, and the LED turn on voltage is typically 2.7V. It also has a common mode transient immunity of 1000V/µs, providing a high degree of electrical isolation.

The HCPL-7723-320E has several applications in the areas of industrial automation and safety. It can be used to provide reliable electrical isolation between two systems, while allowing the systems to communicate. For example, it can be used to provide electrical isolation between a controller and a motor, or between a control cabinet and a hazardous environment. In addition, the HCPL-7723-320E can also be used to provide logic signal isolation between two systems, allowing logic signals to be transmitted between the systems without being affected by the ambient electrical noise.

The working principle of the HCPL-7723-320E is simple. It uses an LED to transfer the logic level signal from one circuit to the other. The LED is driven by the input logic level signal, and the output logic level signal is generated by the photodiode, which is connected to the LED in a photoconductive feedback configuration. When the input logic level changes, the LED will turn on or off, which will cause the photodiode to change its resistance accordingly, producing the output logic level signal.

In summary, the HCPL-7723-320E is a logic output optoisolator that provides electrical and logic signal isolation between two systems. It has several applications in the areas of industrial automation and safety, and its working principle is based on the photoconductive feedback configuration of an LED and a photodiode. With its high level of electrical and logic signal isolation, it is the perfect choice for applications that require reliable electrical and logic signal transmission.

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