ACPL-224-500E

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Optoisolators are optoelectronic devices that use a light emitting diode (LED) and a photodetector to provide electrical isolation between two circuits. They provide galvanic isolation between two circuits, thereby eliminating the possibility of high voltage transients, ground loops and other negative effects. The ACPL-224-500E optoisolator is a transistor, photovoltaic output optoisolator designed for applications requiring high speed, high current drive, and high voltage isolation.

The ACPL-224-500E optoisolator consists of an infrared LED that is optically coupled to an NPN phototransistor detector. When LED current is applied, infrared radiation is emitted. The resulting photocurrent in the phototransistor collector will vary according to the input-signal level, resulting in an output current that is proportional to the LED current. The circuitry features built-in protective clamp diodes that allow the ACPL-224-500E to be used in high-voltage applications.

The ACPL-224-500E optoisolator is most commonly used in applications that require isolation of low-level line signals. It offers electrical isolation of up to 500V rms, and can be used to isolate analog or digital signals. It can also be used to isolate AC signals from DC signals, as well as voltage-to-current or current-to-voltage conversions. The optoisolator’s speed and accuracy make it ideal for precision control applications.

The ACPL-224-500E optoisolator is designed to operate up to 100 kHz with a low input capacitance of 6 pF typical, allowing fast response times. It features low propagation delay accuracy of ± 10 ns. With an insulated base containing a 4-way terminal layout, it can easily be wired for parallel installation as well as connecting multiple units in series. The device also includes a built-in temperature compensating circuit, which ensures a stable output over a wide temperature range.

The ACPL-224-500E optoisolator provides a fully integrated solution for applications requiring electrical isolation, especially when high current and high voltage are involved. It offers reliable operation, low-power consumption, and high noise immunity, making it the ideal choice for industrial, medical, and military applications.

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