H11L3TM

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Optoisolators are electronic components used to provide electrical isolation between two circuits, while still allowing them to exchange electrical signals. They are useful for preventing electrical noise or overvoltage of one circuit from interfering with another circuit. The H11L3TM is a specially designed optoisolator specifically designed for logic outputs. It features a built-in logic circuit designed to provide a (TTL, or LVTTL) logic output when used as a solution for digital isolation. In this article, we will discuss the application field of the H11L3TM optoisolator as well as its working principle, so that you can better understand how this opto-isolation solution works.

H11L3TM Application Field

The H11L3TM optoisolator is designed for use in both commercial and industrial applications, where isolation of electrical circuits is needed. It can be used to efficiently protect your digital circuitry from high voltages or disruptive electrical noise. Additionally, the H11L3TM also features an internal logic circuit for directly connecting it to logic level outputs. This means that you can directly use it to switch high speed logic signals without having to worry about voltage spike protection or signal degradation, and the resulting output is fully compatible with (TTL, or LVTTL) logic signals.

The H11L3TM is suitable for a variety of digital applications that require electrical isolation. Some examples of this include protection for low-voltage logic circuits, providing a direct digital interface between two isolated circuits, and providing electrical noise immunity for microprocessors. In all of these scenarios, the H11L3TM provides an ideal isolation solution.

H11L3TM Working Principle

The H11L3TM optoisolator works on the principle of using a light-emitting diode (LED) and a phototransistor combined into a single package. When the LED is activated, it emits light, which is sensed by the phototransistor in the same package. This causes the phototransistor to turn on and off, which effectively switches the output voltage. By connecting the LED and phototransistor in this way, you can electrically isolate one circuit from another while still allowing them to exchange electrical signals.

In the case of the H11L3TM, the LED is used to control a logic circuit, which is connected to the phototransistor. By providing a logic output, the H11L3TM is ideal for applications where direct digital control is required. The logic circuit in the H11L3TM provides an output voltage that is fully compatible with (TTL or LVTTL) logic outputs, and the output is isolated from the input voltage, providing electrical noise immunity.

Conclusion

The H11L3TM optoisolator is a highly effective opto-isolating solution for digital applications that require electrical isolation and noise immunity. Its internal logic circuit makes it perfect for providing a direct digital interface between two isolated circuits, and its (TTL or LVTTL) logic output makes it compatible with a variety of digital circuit designs. By using the H11L3TM, you can ensure that your circuits are properly protected from high voltages, electrical interference, and digital signal degradation.

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