TLP293(BL,E

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Optoisolators - Transistor, Photovoltaic Output are devices that isolate voltage and/or current signals electrically. They are used to manage the flow of electric current from one system to another, helping to protect components and circuits from dangerous spikes and unexpected electrical events. One of the most popular types of optoisolators is the TLP293(BL,E) family, which uses an LED to create an optical barrier between two circuits. This article will discuss the application field and working principle of this type of optoisolator.

TLP293(BL,E) Application Field

TLP293(BL,E) has a high input to output isolation voltage of 7.5kV and a power dissipation of 600mW, making it suitable for a wide range of applications. Typical applications include providing optical isolation for AC and DC signal circuits, protecting equipment from common mode signals, isolated voltage and current detection, and providing isolation for communication circuits. This type of optoisolator also finds applications in medical equipment, industrial safety equipment, and automotive systems.

TLP293(BL,E) Working Principle

The TLP293(BL,E) optoisolator consists of a IC LED, a phototransistor, and a base drive circuit. The LED emits light when current is applied to it, which is then detected by the phototransistor. The phototransistor amplifies the detected light signal and converts it into an electrical signal, which is then passed to the base drive circuit. The base drive circuit is then used to power the gate of a power transistor, which then completes the current flow between the two circuits.

TLP293(BL,E) is able to isolate its input from its output because the LED and phototransistor are not electrically connected. The output signal is only affected by the input signal when the light emitted by the LED is detected by the phototransistor. The light barrier that exists between the two minimises the possibility of interference and surges, thus providing an unparalleled level of isolation between the two circuits.

Conclusion

The TLP293(BL,E) optoisolator is a great choice for applications that need a high degree of electrical isolation. Its sturdy construction, coupled with its emphasis on optical isolation, provide a high level of protection for your components and circuits. With its large variety of applications, the TLP293(BL,E) optoisolator provides a reliable solution in many different situations.

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