The LNK306GN is an integrated circuit (IC) component designed for offline switch mode power supplies (SMPS) up to 5 Watts. It belongs to the LinkSwitch-TN2 family of ICs developed by Power Integrations. This highly integrated device offers an array of features and functionalities that enhance the performance and reliability of offline power supplies.
One of the key features of the LNK306GN is its ability to deliver accurate and stable output voltage regulation within a tight tolerance. It incorporates a proprietary technology called EcoSmart, which enables automatic adjustment of the energy consumption based on the load requirements, thus improving energy efficiency and reducing power consumption.
The IC features a multi-mode operation that dynamically switches between different modes (boundary-conduction mode, hysteretic mode, and frequency reduction mode) depending on the load conditions. This mode switching ensures efficient power delivery across a wide load range while maintaining high power factor and low THD (total harmonic distortion).
In terms of safety, the LNK306GN is designed to offer comprehensive protection features. It includes cycle-by-cycle current limit, output overvoltage protection, thermal shutdown protection with auto-restart, and line input overvoltage protection. These protections ensure the safety of the power supply and connected devices against abnormal operating conditions and fault events.
Furthermore, the LNK306GN supports wide input voltage range operation (from 85 VAC to 265 VAC), making it suitable for universal input voltage applications
