CS6552

MOS IC CS6552 A High Precision Primary Side feedback Constant Current Control LED Controller The Document is Applied to: CS6552AEO,CS6552BEO,CS6552EO,CS6552CEO,CS6552DEO 1、General Description The CS6552 is a high precision primary-side-feedback LED lighting controller which integrates a 600V high voltage power MOSFET, it achieves 85Vac-265Vac input voltage and accurate LED current for single-power stage, isolated lighting applications. The constant current control method accurately controls the LED current from the primary side, and therefore significantly simplifies the LED lighting system design by eliminating the secondary side feedback components and opto-coupler. It also eliminates the need of loop compensation circuit while maintaining stability，and increase the reliability. The CS6552 works in discontinuous conduction mode to reduce the MOSFET switching losses. The extremely low start-up current and quiescent current reduces the total power consumption to provide a high efficiency solution for lighting applications. The multi-protection feature of CS6552 significantly improves the system reliability and safety. The CS6552 features over-voltage protection, short-circuit protection, cycle-by-cycle current limit, VCC UVLO and over-temperature protection. The CS6552 will auto-restart when protection happens. Features ● Integrate 600V high voltage power MOSFET ● Primary-side-control Without Secondary-feedback Circuit ● High Precision LED Output current for 85Vac-265V...