LNK576DG

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The LNK576DG is an integrated power switching chip with low noise, high conversion efficiency, fast start up and adjustable output current for AC DC converters and offline switchers. It is a cost effective yet reliable solution for a range of applications including LED lighting, AC adapters, battery chargers, and other energy-saving applications.

The LNK576DG offers high efficiency, low noise and low operating current, along with a low RDS(on) power FET to reduce heat dissipation and extend operating life. The internal current mode oscillator is self-adjusted with a wide frequency range, which helps reduce system components and save space. The chip also offers built-in multi-level output current sensing, enabling accurate control of the output current.

The LNK576DG supports a wide input voltage range from 8V to 36V and offers adjustable output current limit protection to minimize the risk of damage caused by excessive current. It also has a wide output voltage range (2.25V-20V). The chip also features automatic output short-circuit protection, as well as short-circuit and thermal shutdown features.

The LNK576DG also includes advanced control input features such as a standby control pin and a high voltage enable pin. This can be used to efficiently turn off and on the chip when there is no demand for power. It also provides a low leakage standby mode for low power system applications.

The LNK576DG provides Enhanced Pulse Width Modulation (PWM) control for higher accuracy and reliability. It is equipped with Speed Enhanced Pulse Width Modulated (SEPWM) control technology which monitors and adapts the voltage frequency to reduce electromagnetic interference and improve system efficiency. The chip also includes an Active Voltage Position Control (AVPC) function that helps maintain the output voltage within a range.

The LNK576DG also features a synchronous rectification switch and a high power FET output stage. This provides greater efficiency and improved converter performance when compared to traditional linear regulators. The chip also reduces power fluctuations and output ripple, making it more suitable for high power applications.

All in all, the LNK576DG is an integrated power switching chip with low noise, high conversion efficiency, fast start-up, adjustable output current and high reliability. It is a cost-effective solution for a number of high power applications and is suitable for both offline switchers and AC-DC converters.

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