HCPL-4661#320

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An optoisolator, also known as an optocoupler, photocoupler, or optical isolator, is an electronic device used to transfer a signal from one circuit to another circuit with electrical isolation. One of the most common optoisolators is the HCPL-4661#320, which belongs to the Optoisolators - Logic Output family.

The HCPL-4661#320 is used in applications requiring a small, low-cost optoisolator, such as data transmission systems, power control systems, personal computer systems, residential telephone lines, and other general purpose circuits. This optoisolator has an isolated output voltage rating of 5.2V; an output current of 1mA; a total propagation delay of 200ns; and a power dissipation of 250mW. It also has an extremely high common mode transient immunity of >25kV/μs. This makes it an ideal choice for applications requiring high isolation or signal accuracy.

The working principle behind the HCPL-4661#320 is by converting impulses from a digital input signal into corresponding output optoelectric signals. When the device receives an input signal, the infrared LED located inside creates a light that passes through a detector, giving off an output voltage of 5.2V with a current of 1mA. This output voltage is then converted back into an electrical pulse, completing the signal process.

Since the HCPL-4661#320 provides signal transmission and isolation between two circuits, it increases system reliability and provides effective noise immunization from signal interference. Its small size also makes it a perfect fit for tight circuits. Overall, the HCPL-4661#320 is an ideal choice for applications in the Optoisolators - Logic Output family.

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