* Lower start-up current * Primary side control for Constant Voltage (CV) and Constant Current (CC) * Leading edge blanking * Pulse-Frequency Modulation * Overvoltage pro.

SD4851 is primary side power controller with built-in high voltage MOSFET. It senses the output voltage indirectly by using the auxiliary wind of the power transformer. It adopts Pulse Frequency Modulation (PFM) technology for flyback power supply co.

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