LNK6765K-TL

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Switch mode power supply or switcher is a type of power supply that uses a switching regulator to convert electrical power efficiently. The LNK6765K-TL is a highly integrated offline switcher optimized for Flyback, LLC, and other isolated topologies. It enables a high light load efficiency and offers wide 4.5V to 65V input voltage range with 5V/2A output while the operating frequency can be varied from 20kHz up to 700kHz.

Let\'s talk about the application fields of LNK6765K-TL. It is mainly used in Home Appliances such as air conditioner, refrigerator, washing machine, etc; Industrial Motors such as AC/DC motor drives, pumps and fans; Automotive Applications such as headlamps, starter motors, alternators, cooling fans, absolute pressure and anti-lock brakes systems; LED Drivers for Outdoor LED Lighting, LED lamp, T8 LED tube, LED strips and LED modules; the Power Supply for Set-top box, ATE equipment, Portable Devices and Battery chargers.

The LNK6765K-TL offers 5V output voltage and 2A maximum current, plus it offers full protection including over-voltage, over-temperature and open-loop, that makes it one of the most reliable AC/DC converters. It integrates a custom 700V power MOSFET, 650V start-up cell, current mode control system and dynamic efficiency management for maximum flexibility.

Talking about the working principles, LNK6765K-TL follows the universal Offline smps principles. It comprises of an input capacitor, rectifier, switching device, transformer, output capacitor, protection circuit and control circuit block. There are three stages involved in the operation of the power supply, which are the turn-on, steady-state and the turn-off. During the turn-on phase, the switching device is turned on, when the input voltage reaches a certain value the feedback circuit triggers and controls the output voltage, after that the steady-state phase begins. In the steady-state phase, the switching device operates in a continuous conduction mode and the transformer is energized, transferring the energy to the load through the output capacitor. In the turn-off phase, the transformer is de-energized, the switching device is turned off and the output capacitor provides the load with the energy. The LNK6765K-TL also adds two additional blocks, which are the start-up cell block that helps to bootstrap the control circuitry and the protection block which monitors the input and output voltages.

In conclusion, LNK6765K-TL is an offline AC/DC converter with a wide input voltage range from 4.5V to 65V, multiple output current and full system protection. It\'s application field includes home appliances, industrial motors, automotive applications, LED drivers and other power supply applications. The switcher follows the universal smps operating principles and it\'s main features include its high light load efficiency, operating frequency from 20kHz up to 700kHz and integrations of custom 700V power MOSFET, 650V start-up cell and current mode control system.

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