LNK6666V

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The LNK6666V is an integrated low-power, high-performance off-line switch-mode power supply (SMPS) controller. The LNK6666V contributes to improve power efficiency, reduce size and system cost. This device combines and integrates multiple components, like the power switch, the oscillator, the current sense, the voltage feedback and some useful protection functions.

The LNK6666V is an offline switcher and DC to DC converter, which is commonly used in applications like TVs, computer peripherals, uninterruptible power supplies, car chargers, game consoles and portable devices. The device integrates multiple functions of a power supply system into a single chip while with higher power efficiency, constant current source, and up to 95% system efficiency. It features Pulse Frequency Modulation (PFM) to reduce standby power and improve light load efficiency. This feature makes it an excellent choice for several applications that require higher efficiency power solutions.

The LNK6666V is a Pulse-Width Modulated (PWM) flyback controller that uses a transport delay for primary side control. Its primary-side control system senses the regular load on the secondary side, then adjusts the switching frequency accordingly. The main feature of the device is the ability to accurately control current and voltage in a variety of circuits. It also provides feedback regulation and voltage tracking from the output. The device includes inrush current limit and output overvoltage protection, which enhances system stability and reliability.

The LNK6666V features thermal and overcurrent protection, adjustable voltage and current soft start, and LED driver control. The LED driver control functions include open LED detection, LED ripple compensation, leading-to-trailing edge control, and output voltage regulation. The adjustable current source functions enable accurate control of the output effective current, which benefits constant current applications such as LED dimmers and AC/DC adapters.

The LNK6666V works as an integrated solution for an offline power supply, greatly reducing circuit complexity and saving space. It offers functions that are highly resistant to EMI and provide a high level of system stability. The device is a cost-effective, highly integrated low-power, offline switch-mode power supply controller.

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