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Introduction to Optoisolators - Transistor, Photovoltaic Output, 8215640000 Application Field and Working Principle

An optoisolator (also referred to as an optical isolator, optical coupler, opto-isolator, opto-coupler, or photocoupler) is essentially an electrical device composed of a photosensitive element, such as a light-emitting diode (LED) or a photosensitive transistor, and a photosensitive receiver, such as a photodiode, a phototransistor, or a photo-sensitive field effect transistor (FET), that transmits or receives a signal between two isolated circuits.

As well as this, particular optoisolators could include a secondary output integrated circuit, to actively modify the signal, as well as select the transmission or reception layer, and a suitable drive circuit. The optoisolator offers electro-optic isolation between two circuits operating at different potentials. Optoisolators generally operate either singly or in more complexed configurations, in current, voltage, and even power sensing interface applications.

Understanding 8215640000 Optoisolator - Transistor, Photovoltaic Output

The 8215640000 optoisolator, from Haide Electronics, is a 4-channel transistor output type and photovoltaic circuit structure isolator. This optoisolator utilizes a light-emitting diode and a high-purity silicone phototransistor as a photosensitive element. The 8215640000 optoisolator is capable of providing 5000Vrms electro-optic isolation between input and output circuits. It also presents a maximum load current of 25mA, and a response time of less than 100μs.

Also occupying the miniature SOP-6 package, the 8215640000 optoisolator is available in two different isolation voltage values; 3000Vrms and 5000Vrms. It integrates a drive, transmission, and output interface in just one package, with a dimension of 2.3mm × 2.3mm × 4.6mm. The temperature range within which it operates is between minus 35°C and 85°C.

Working Principle of 8215640000 Optoisolator - Transistor, Photovoltaic Output

The operation of the 8215640000 optoisolator begin with the input signal transmission. Electrical energy from the input signal activates an LED to emit light. The light then travels from the LED, across the LEDs filament, through the air gap, and onto a silicone phototransistor. The contacts of the phototransistor are then closed, and the electrical energy is transmitted to the output circuit. This completes the signal transmission.

The 8215640000 optoisolator offers various input control options, including a built-in single or dual transistor output with up to 10mA current sink, and an over-temperature and short-circuit protection. The optoisolator\'s temperature range is wide enough for use in commercial, industrial, and automotive applications, and its response time is fast enough for operations requiring high speed response.

This optoisolator is increasingly being used for applications requiring high voltage isolation, particularly in infotainment systems of cars, as well as in industrial automation, home appliances, medical device, and consumer electronics applications.

Conclusion

This article has explained the 8215640000 optoisolator - an optoelectronic device with Transistor, Photovoltaic Output. As well as this, the working principle and application fields of this optoisolator have also been presented. With its high temperature range, high response time, 5000Vrms electro-optic isolation, small shape, and low power consumption, the 8215640000 opto-isolator is an ideal choice for a myriad of applications requiring electro-optic isolation.

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