Datasheet > SIC9556A

SIC9556A

更新时间： 2022-06-24 15:40:08

品牌	Logo	应用领域
深爱 - SISEMIC		/
页数	文件大小	规格书
9页	583K
描述
High Precision Non-Isolated Buck LED Driver

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SIC9556A 数据手册

深圳深爱半导体股份有限公司

Shenzhen SI Semiconductors Co., LTD.

产品规格书

Product Specification

High Precision Non-Isolated Buck LED Driver SIC9552A/9553A/9554A/9555A/9556A

General Description

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 can be benefit from its precise and stable adaptive technology. It is able to work without secondary

feedback circuitry or compensation circuitry. The SIC9552A/9553A/9554A/9555A/9556A can achieve precision

constant current control under a small number of peripheral devices and loosen parameter conditions. Such

features can greatly save both cost and size of the system. At the same time, it can ensure the consistency of

parameters when making mass production of LED lighting devices.

The SIC9552A/9553A/9554A/9555A/9556A have extensive protection features, including LED open protection,

LED short protection, current sampling resistor short protection, V_DDunder-voltage protection, over-temperature

protection.

Features

· Internal 500V Power MOSFET

· Ultra Low Operating Current

· Cycle-by-Cycle Current Limit

· LED Open Protection

· No Auxiliary Winding

· LED Short Protection

· ±3% LED Output Current Accuracy

· Inductor Current Critical Continuous Mode

· Excellent Line and Load Regulation

· Current Sampling Resistor Short Protection

· V_DDUnder-Voltage Protection

· Over Temperature Protection

Typical Application

SIC955XA

Si semiconductors

SIC9552A/9553A/9554A/9555A/9556A_EN_Rev3.0

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