HCPL-273L-500E

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HCPL-273L-500E is an optoisolator that comes from the Transistor, Photovoltaic Output family. It is a type of current-transfer device with a nonconductive barrier that allows electrical isolation between the input and output circuits. This device offers an isolated output that is designed to provide a threshold of at least 500 mA of constant current to isolated loads.

HCPL-273L-500E is commonly used in a variety of applications, such as telecommunications, industrial automation, motor control systems, switching equipment, UPS systems, and home security systems. This device allows users to safely control the on and off switching of electrical loads, and in some cases, provide voltage and current isolation in hazardous environments.

The HCPL-273L-500E features a wide range of advantages, such as high isolation voltage between input and output circuit, low power consumption, low voltage drop, fast response time, wide-temperature range, and a wide range of packages. It is also highly reliable due to its low creepage that is caused by thermal resistance.

The working principle of HCPL-273L-500E is based on the use of an optoisolator-emitter phototransistor circuit, which is a two-terminal device. The circuit consists of an LED, a phototransistor and a series resistor. The LED is connected to the input side and emits infrared light when a signal is applied. The phototransistor is connected to the output side and turned on when light is emitted from the LED, allowing current to flow through the phototransistor. The series resistor limits the output current level. Moreover, the optoisolator-emitter phototransistor circuit is enclosed in a rugged plastic package, protecting the portion of the circuit from external short circuits and other factors.

In summary, HCPL-273L-500E is an optoisolator that belongs to the Transistor, Photovoltaic Output family. It is commonly used to control electrical loads and provide voltage and current isolation in hazardous environments. Its low power consumption and fast response time offer an advantage for many application fields. Furthermore, this device has a working principle that is based on the use of an optoisolator-emitter phototransistor circuit, making it reliable and durable.

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