HCPL-2201-000E

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Optoisolators, also known as optocouplers, are devices used to isolate electrical signals from one circuit to another. In the world of digital logic, optoisolators are often used to provide high-current isolation and logic level conversion between applications. This type of optoisolator is known as a logic output optoisolator. One such example is the HCPL-2201-000E model. This article will discuss the application field and working principle of the HCPL-2201-000E.

Application Field

The HCPL-2201-000E optoisolator is mainly used in circuit isolation of switching mode power supplies, motor drives, and general-purpose pulse stimuli and detection. As a single channel logic output optoisolator, the HCPL-2201-000E is mainly applied in equipment which requires data transfer between circuits operating at vastly different voltages. For example, it can be used to protect expensive logic IC\'s from over or under-voltage conditions, while still allowing control over them. It can also be used in medical equipment, automotive systems, and industrial machinery.

Working Principle

The HCPL-2201-000E is a digital optoisolator which uses an opto-coupler IC to transfer data between points which have different voltage references. It is made up of two main components; an LED light source and a photodarlington opto-coupler IC. It has two pins; an input (LED) and the output (IC). When the input is energized, the LED will emit light into the IC’s detector, which causes the IC to switch to a high logic state. This will enable current to flow to the output of the device and allow the further circuit to operate accordingly.

The operating voltage range of the HCPL-2201-000E is between 5V and 30V, with a maximum input current of 4mA. When the LED is active, it has a characteristic forward voltage of 1.4 to 1.7V, and a total forward current of 2mA. The photodarlington IC has a maximum collector-emitter voltage of 60V, and a minimal collector-emitter voltage of 20V. The electrical isolation is provided by an internal optical barrier; it is also possible to use external shielding to further protect the device from electrical interference.

Conclusion

The HCPL-2201-000E optoisolator is a single channel logic output device which can be used to transfer data between two circuits of different voltage levels. It is suitable for applications such as switching mode power supplies, motor drives, general-purpose pulse stimuli and detection, industrial machinery, medical equipment, and automotive systems. The optoisolator consists of a LED light source and a photodarlington IC, and provides a maximum collector-emitter voltage of 60V and a minimal collector-emitter voltage of 20V.

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