The LNK305GN-TL is an integrated circuit (IC) component from Power Integrations, specifically designed for offline LED lighting applications. This IC combines a high-voltage power MOSFET with a controller for power factor correction (PFC) and constant current output.
One of the key features of the LNK305GN-TL is its highly integrated nature, which minimizes external components and simplifies the design process. It operates in boundary mode, ensuring high efficiency and low component count. Here are some important aspects of this IC:
1. Switching Converter: The LNK305GN-TL utilizes a switch-mode power supply (SMPS) approach that converts high-voltage AC to a regulated low voltage DC output suitable for driving LEDs.
2. Power Factor Correction (PFC): The built-in controller enforces near-universal input voltage compatibility while ensuring high power factor (PF) operation. This improves energy efficiency and reduces harmonic distortion.
3. Intelligent Control: The IC implements primary-side control, eliminating the need for an optocoupler and secondary-side feedback components. This simplifies the circuit and increases reliability.
4. Constant Current Output: The LNK305GN-TL is specifically designed for constant current output, making it suitable for driving LEDs. It provides accurate, tightly regulated current with minimal variation
