LNK6417D-TL

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Power management integrated circuits (PMICs) are integrated circuits (ICs) that provide efficient and convenient power management solutions for a variety of applications. PMICs are designed to convert and manage the voltage and current signals needed for the successful performance of a basic device, such as a digital display, a battery-operated device, or a modern microprocessor-based system. AC/DC converters, offline switchers, and LNK6417D-TL are all common types of PMICs. In this article, we’ll focus specifically on the application field and working principle of LNK6417D-TL.

The LNK6417D-TL is suitable for adapter applications and is designed to meet the cost-effectiveness design. It is a non-isolated low-power AC/DC converter with 84% efficiency, and can meet the requirements of level Ⅱ power supply. With its 66mΩ high-side power switch, an external resistor is used to accurately adjust the output voltage. It is small, economical, and efficient. More importantly, the LNK6417D-TL does not require optocouplers and signal transformers, resulting in high reliability and low power consumption.

The application field of the LNK6417D-TL is mainly used in computers, notebook computers, and other electronic devices that require power sources. It can be used in a wide range of power input applications, such as AC/DC adapters, battery chargers, and various power supplies. In addition, the LNK6417D-TL can also be used in automotive, medical, and industrial equipment applications, providing a high-accuracy, low-cost, high-efficiency power supply solution.

The LNK6417D-TL works by converting input AC power from a wall socket to the required DC output. This is done in three stages. First, the wall socket AC input is rectified by the diodes and converted to direct current (DC). Second, the voltage is step-down by the power switch according to the output voltage setting. And lastly, the voltage is transferred to the output 12V/24V DC. The LNK6417D-TL is designed with a 66mΩ high-side power switch, so the output voltage can be accurately adjusted by changing the resistance of the external resistor.

The three stages of AC/DC conversion are controller by an internal voltage detector (MOV), a current limiting circuit (LDO), and an over voltage protection circuit (OVP). The MOV senses the output voltage and prevents it from overvoltage. It can rapidly detect the status of the output voltage and reset the internally integrated OVP circuit. Meanwhile, the current limiting circuit (LDO) sets the current limitation and provides a protection signal when the load is short-circuited to ensure the safe operation of the converter. The OVP circuit is used to detect possible spikes and provide fast response over voltage protection for the converter.

Overall, LNK6417D-TL is an efficient and cost-effective offline switcher designed for a wide range of power input applications. It features a 66mΩ high-side power switch and three embedded protection circuits to protect the system from voltage and current surges. With its high efficiency and low power consumption, the LNK6417D-TL is an ideal solution for providing reliable and smooth power conversion for digital displays, batteries, microprocessor-based systems, and a variety of other applications.

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