LNK6766K

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Among the various power ICs, the LNK6766K is an AC-DC offline switcher that is well-known for its high efficiency and reliability. It is used in a variety of applications, ranging from consumer and industrial electronics to renewable energy systems. This article will discuss the application fields and working principle of the LNK6766K in detail.

Application Fields

The LNK6766K is a highly integrated AC-DC switcher that can be used for both offline (mains/direct) and switchmode power supply (SMPS) applications. It is suitable for applications where the input voltage ranges from 85VAC to 265VAC and the output voltage ranges from 12V DC to 54V DC. It is a cost-effective solution for low-power, non-isolated, AC-DC applications such as LED drivers, chargers, and adapters.

This device is also used in the energy sector. For example, it is an excellent choice for solar powered applications, as it is efficient and reliable, and can provide higher power levels than other solutions available in the market. Additionally, since it has integrated protection features, it can also be used in grid-tie and other applications where safety is a priority.

Working Principle

The LNK6766K integrates a high-performance oscillator and PWM controller, power switches (MOSFETs) and current sense resistor, to achieve an efficient, reliable, and cost-effective AC-DC power supply solution.

The primary benefit of integrating a high-performance oscillator and PWM controller is that the AC-DC conversion process can be accurately controlled. The PWM controller takes in an AC input voltage, and then generates a pulse-width modulation (PWM) signal from it. The signal is then fed to power switches, which switches the current flow to achieve the desired voltage output.

Additionally, the LNK6766K includes a current sense resistor which detects the current drain and regulates the current flow to ensure overload protection. The device also has integrated EMI filters and thermal shutdown functions, which makes it suitable for applications with demanding EMI requirements.

The LNK6766K is a highly integrated AC-DC switcher that makes efficient, reliable, and cost-effective power supply solutions with integrated protection measures. It can be used in a variety of applications, ranging from consumer and industrial electronics to renewable energy systems.

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