Datasheet > SIC9803

SIC9803

更新时间： 2024-11-03 17:00:55

品牌	Logo	应用领域
深爱 - SISEMIC		/
页数	文件大小	规格书
11页	481K
描述
体积小可靠性高效率高寿命长温度特性/湿度特性好抗干扰性高可调光符合RoHS规范

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SIC9803 数据手册

深圳深爱半导体股份有限公司

产品规格书

Shenzhen SI Semiconductors Co., LTD.

Product Specification

Dimmable High Precision PSR APFC Isolated LED Driver

SIC9803

General Description

The SIC9803 is a dimmable high precision primary-side regulation isolated flyback controller with single-stage

Active PFC, specially designed for offline constant current LED lighting. The controller with on-chip PFC

circuit operates in CCM (Critical Conduction Mode) to achieve high power factor and reduce the power

MOSFET switching loss. The controller precisely control the LED current without secondary side sense and

feedback circuit including opto-coupler. It uses source driver architecture and pending internal charging circuit

for low primary side switching loss, ultra fast VDD start up and LED turn on.

The SIC9803 uses compensation method to achieve excellent line regulation, and it still can be tuned externally

for flexibility.The controller also has outstanding load regulation for driving wide range of LED numbers.

The SIC9803 offers rich protection functions to improve the system reliability, including LED short circuit

protection, LED open circuit protection, VDD over voltage protection, VDD under voltage protection, ISEN

resistor short circuit protection, ISEN resistor open circuit protection, cycle-by-cycle current limit and die

over-temperature protection.All the protection features are auto-recovery.

The SIC9803 is available in SOP-8 package.

Features

Primary Side Control Constant Current Operation

±3% LED CurrentAccuracy

· Single-Stage Active PFC for High Power Factor and Low THD

. Dimmable

Excellent Line and Load Regulation

Gate Driver Structure for Improved Efficiency

Ultra-Low Start up Current

Critical Conduction Mode Operation

High Resistance Feedback Resistor for Improved

Ultra-Low Operating Current

Efficiency

LED Short and Open Circuit Protection

Transformer Saturation Protection

ISEN Resistor Short and Open Circuit Protection

Cycle-by-Cycle Current Limit

. VDD Over-voltage and Under-voltage Protection

Over Temperature Protection

Auto Recovery

Typical Application

Si semiconductors 2018.03

SIC9803_EN_Rev2.1

- 1 -

12 3 4 5 6 7...11

中文翻译

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与SIC9803相关器件

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SIC9863	SISEMIC	获取价格	体积小可靠性高效率高寿命长温度特性/湿度特性好抗干扰性高可调光符合RoHS
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SIC9867	SISEMIC	获取价格	体积小可靠性高效率高寿命长温度特性/湿度特性好抗干扰性高可调光符合RoHS
SIC9922L	SISEMIC	获取价格	North American thyristor dimming LED constant current driver chip
SIC9923L	SISEMIC	获取价格	North American thyristor dimming LED constant current driver chip
SIC992L	SISEMIC	获取价格	North American thyristor dimming LED constant current driver chip
SIC993L	SISEMIC	获取价格	North American thyristor dimming LED constant current driver chip
SIC9952	SISEMIC	获取价格	Non-Isolated Buck Sections Switch Dimming LED Driver
SIC9952B	SISEMIC	获取价格	Non-Isolated Buck Sections Switch Dimming LED Driver

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