The BP3286J is a high-efficiency, high-PF LED driver chip that supports SCR dimming. Operating in inductor current critical continuous mode, it is suitable for Buck-Boost LED driver power supplies. The BP3286J integrates a 600V power switch and employs a patented gate drive and high-voltage power supply method, requiring very few external components to achieve excellent constant current characteristics, significantly reducing system cost and size. The BP3286J features multiple protection functions, including LED open-circuit protection (overvoltage protection), LED short-circuit protection, and chip temperature overheating regulation. The BP3286J is packaged in an SOP-8 package.

RZC7512It is dual channelUSBDedicated charging port (DCP)(BC1.2) controller. With automatic detection feature, it monitorsUSBThe MCU automatically detects the data line voltage and automatically provides the correct voltage characteristics on the data line to provide compatible charging for the following dedicated charging configurations: 1. Apple Divider DCP, requiringD+andD-Apply to the line2.7VVoltage 2. BC1.2 DCP, requiringD+Short circuit toD-line 3.China Telecom StandardYD/T 1591-2009Short-circuit mode requiresD+Short circuit toD-line 4. Samsung DCP,RequireD+Line andD-The voltage on the line is1.2V

The SD4947 is a DC-DC converter control chip for buck switching power supplies, driving external MOSFETs. The SD4947 features integrated high-voltage supply for fast startup, adaptive frequency reduction to further optimize conversion efficiency under light load conditions, and built-in frequency dithering to optimize EMI. The SD4947 also integrates various abnormal state protection functions, including: cycle-by-cycle peak current protection, VDD overvoltage protection, undervoltage protection, output overload protection, output overvoltage protection, and overtemperature protection.