HCPL-0730#500

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Optoisolators - Transistor, Photovoltaic Output

The HCPL-0730#500 is a semi-custom optoisolator manufactured by Avago Technologies, used in various applications in the industrial, commercial and consumer sectors. It is a single-channel photocoupler, featuring an integrated monolithic phototransistor and photovoltaic diode as its optically coupled output.

Main Features

The HCPL-0730#500 photocoupler offers a variety of features including:

• Standard input of 5V and 12V
• Low saturation voltage
• Low noise and high speed
• Protection against overvoltage and output overvoltage options
• Double insulated package
• Low power consumption
• RoHS-compliant

Applications

The HCPL-0730#500 photocoupler can be used in a variety of applications, such as:

• Control of household appliances
• Protection of electrical circuits
• Signal isolation for analog systems and microcontroller bus
• Safety and control systems
• Interface for communication systems
• Power supply control
• Security systems

Working Principle

The HCPL-0730#500 features a hybrid photodetector die, comprised of a photovoltaic diode and a monolithic integrated phototransistor. The photodiode follows the principles of the p-n junction, absorbing incident light upon the junction and creating a large voltage drop across the junction. This voltage creates an electric current flowing from the photodiode\'s n-type region to its p-type region, the direction of the current being determined by the direction of the voltage.

The phototransistor functions according to the principles of a combined bipolar and field effect transistor. Photons absorbed by the base-emitter junction create an additional current, which together with the collector current, forms an amplified output. As the collector current is proportional to the incident light, the HCPL-0730#500 optoisolator provides a detailed record of the input current.

Conclusion

The HCPL-0730#500 optoisolator is a versatile solution for interfacing circuits with different supply voltages. With its robust design, the HCPL-0730#500 is ideal for a wide range of industrial, commercial and consumer applications, providing reliable electrical insulation and signal integration.

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