This part is a kind of semiconductor called SIC9552A.

Function of this product has High Precision Non-Isolated Buck LED Driver.

Manufacturers : SI Semiconductors

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深圳深爱半导体股份有限公司 Shenzhen SI Semiconductors Co., LTD. High Precision Non-Isolated Buck LED Driver General Description 产品规格书 Product Specification SIC9552A/9553A/9554A/9555A/9556A The SIC9552A/9553A/9554A/9555A/9556A are high precision buck LED drivers. The chips are suitable for 85~265Vac universal input LED lighting applications. The SIC9552A/9553A/9554A/9555A/9556A integrate high-precision sampling and compensation circuit, the constant current of circuit can achieve accuracy under ± 3%. It can also achieve the adaptive demand between both output inductor current and output voltage, so as to achieve good linear regulation and load regulation. The SIC9552A/9553A/9554A/9555A/9556A integrate 500V power MOSFET. The simple peripheral structure of the system [ ... ]

SIC9552A PDF Datasheet Download