L6759E

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L6759E Application Field and Working Principle

The L6759E is a voltage regulator specially designed for automotive applications. It offers a variety of protection features for devices operating under harsh environment conditions, such as over-voltage, over-temperature and reverse hook-up. It is used in lighting and audio systems, automotive communication systems as well as in mobile devices and home appliances.

Application Field

The main application of the L6759E is in automotive lighting applications, where it is used to regulate the voltage supplied to the outside lamps. This voltage regulator is also often used in audio systems in order to adjust the voltage supply to theaudio speakers. It is also frequently used in car communication systems, such as Bluetooth and GSM, in order to steady the power supply. Lastly, it is used in home appliances as well as in mobile devices, such as phones and tablets, in order to regulate the voltage delivered there.

Working Principle

The working principle of the L6759E is very simple. When a voltage greater than its regulated voltage is applied, it lowers the input voltage to its regulated level. This regulated voltage level is determined by the external resistors of the device. It also has over-temperature protection and reverse hook-up protection by which in case of an over-temperature or reverse hook-up the output voltage is shut down. If the input voltage is lower than the regulated voltage, the device acts as an open switch, and no current flows from the input to the output.

Conclusion

The L6759E is a special purpose voltage regulator that is widely used in automotive lighting, audio systems, car communication systems, home appliances, and mobile devices due to its protection features and its ease of use. It is designed to regulate the voltage applied to the device it is connected to, and it has over-temperature and reverse hook-up protection.

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