LNK6775K-TL

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The LNK6775K-TL is a fully integrated AC-DC power supply with high level of integration and low standby power consumption. It is specifically designed for applications that require high performance, such as communication systems and industrial equipment. This device is classified into the PMIC - AC DC Converters, Offline Switchers category and features a wide selection of features to optimise power consumption, reduce the overall system cost and provide uncompromising system reliability. This article will provide details on the main application field and working principle of the LNK6775K-TL.

Application Field

The LNK6775K-TL is specifically designed for highly efficient AC-DC power solutions. It can be used in various applications such as green servers, routers, smart surveillance devices and other mission-critical systems that require high performance, power efficiency and reliable power supply. As it is suited for low-power AC-DC solutions, the LNK6775K-TL can be used in industrial control systems, battery-powered applications and personal electronics.

The LNK6775K-TL features low standby power consumption and low operating temperature, making it ideal for use in systems that require low power consumption. It also has a built-in pulse rate modulated (RPM) mode, which allows users to select the appropriate operating frequency and reduce switching loss for higher efficiency. Additionally, the LNK6775K-TL has an adjustable no-load power consumption rating, allowing users to choose from different levels of power consumption depending on their system requirements.

The LNK6775K-TL also supports output voltage scaling, which allows users to easily adjust the output voltage level of their system. This feature ensures that users can adapt the device to their system’s power needs with the help of the adjustable output voltage setting.

Working Principle

The working principle of the LNK6775K-TL is based on an offline topology, which allows the power supply to operate even if the input voltage is not present. In this topology, the primary DC source supplies the mains supply and the secondary storage elements are used to store the power when the mains supply is lost. The output voltage of the system is then regulated using the output capacitor.

When the mains supply is present, the primary winding of the transformer is connected to the mains supply and the secondary winding is connected to the output capacitor. During the positive half cycle, the current from the mains supply flows to the primary winding of the transformer and the secondary winding is energized. Since the primary and secondary stores are configured to operate inversely, the current that flows from the primary winding will also flow through the secondary winding.

During the negative half cycle, the current flows from the secondary winding and the primary winding is energized. This current is then stored in the output capacitor, which is responsible for regulating the output voltage. When the mains supply is lost, the energy stored in the output capacitor is used to provide the power to the system.

The LNK6775K-TL is capable of operating efficiently in both line- and load-mode operations. In line-mode operation, the device maintains a constant output voltage with very low ripple and noise. This helps to ensure that the power supply doesn’t experience any power surges or unnecessary power losses. In load-mode operation, the LNK6775K-TL is able to adjust the output voltage depending on the load requirements, which helps to ensure efficient operation at all times.

Furthermore, the LNK6775K-TL also integrates built-in protections such as output open-circuit protection and output over-voltage protection. It also provides short-circuit protection, which ensures that the system remains safe if a short-circuit condition occurs. In addition, the device also provides surge protection, which helps to protect the system from lightning strikes or power surges.

In conclusion, the LNK6775K-TL is a highly integrated AC-DC power supply that is ideal for applications that require high performance, power efficiency and reliable power supply. It is classified into the PMIC - AC DC Converters, Offline Switchers category and features a wide selection of features to optimise power consumption, reduce the overall system cost, and provide uncompromising system reliability. It is specifically designed for applications such as green servers, routers, and smart surveillance devices, and has the flexibility to be used in many other mission-critical systems.

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