HCPL-273L#500

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Optoisolators are devices used to provide electrical isolation between two circuits, usually used to protect a control system from electrical spikes or malfunctions in a controlled circuit. The HCPL-273L #500 is an optoisolator that combines a LED light source with a NPN phototransistor output and provides electrical isolation of over 2 kV. Through this article, we will discuss the application field and working principle of the HCPL-273L #500.

The HCPL-273L #500 is a 4-pin optoisolator device, that consists of a LED light source and a NPN phototransistor output. It is compatible with a variety of input circuits, such as logic controllers, microprocessors or other TTL/CMOS logic circuits. It is also compatible with a variety of output devices, such as transistors, relays, motors, solenoids, registers, etc. The breakdown voltage of its photo coupler exceeds 2,500Vrms and its transistor output is rated to switch up to 120 volts and source/sink up to 1A.

The HCPL-273L #500 is usually used in applications that require electrical isolation to protect a control system from electrical spikes or malfunctions in a controlled device. It is often used in industrial automation, building control systems, medical equipment, etc.

The working principle of the HCPL-273L #500 involves a LED light source and a phototransistor output. The LED light source is driven by an external circuit and emits a current-controlled beam of radiation. When the LED is energized, a current is directed through the LED emitting a beam of radiation, which is directed to the surface of the phototransistor.

The phototransistor is a NPN-type transducer that detects the presence of the light beam and produces current in response to it. The current produced by the phototransistor is amplified and appears in the collector-emitter circuit as an output voltage. This is the output voltage that is used to drive an external load.

The HCPL-273L #500 offers the highest electrical isolation on the market, with a breakdown voltage of over 2,500Vrms. It is also designed with a LED current control pin, which makes the device capable of delivering very accurate pulses to the photo coupler. It also has an extra pin that can be used to monitor the LED current, allowing for current feedback and system optimization.

In conclusion, the HCPL-273L #500 is an optoisolator device that is used to provide electrical isolation between an input circuit and an output device. It is designed with a LED light source and a NPN phototransistor output, and offers a high breakdown voltage of over 2,500Vrms. The extra LED current control pin makes the device capable of delivering very accurate pulses to the photo coupler, and the extra pin for LED current monitoring provides current feedback and enables system optimization. The HCPL-273L #500 is a highly reliable, easy-to-use device, and is suitable for a variety of applications, such as industrial automation, building control systems, and medical equipment.

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