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ctc technology CO.,LTD20 years experience in power supply control IC

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FEEDBACK CONTACT US GMAP 中文版 ENGLISH

Hello, welcome to ctc technology website!

ctc technology CO.,LTD20 years experience in power supply control IC

Free Hotline

86-400-788-7770

Product list

FREE HOTLINE86-400-788-7770

                                                              Internal HV Start-up Primary-Side Converter for LED without Auxiliary Winding


Product:PN8322


一、General Description 

The PN8322 consists of a high precision CC primary side controller and a power MOSFET, specifically designed for a highperformance low power LED lighting with minimal external components and duplex winding. The chip operates in primary-sidesensing and regulation, so opto-coupler and TL431 could be eliminated. The chip adopts a patent HV DMOS self-supply technology,so auxiliary winding and HV Start-up resistance could be eliminated. The chip offers complete protection coverage with automaticself-recovery feature including Cycle-by-Cycle current limiting protection (OCP) and feedback loop open protection (OLP), overtemperature protection (OTP) , and LED-open/short circuit protection etc. Internal HV Start-up circuit and the chip’s very lowconsumption help to meet high efficiency. In CC control, the current and output power setting can be adjusted externally by the senseresistor Rcs at CS pin.


二、Features

Internal 700V avalanche-rugged power MOSFET

Internal HV Start-up Circuit without external HV Start-upresistance

Primary-side Sensing and Regulation Without TL431 andOpto-coupler

Internal HV self-supply without auxiliary winding

±5% Constant current Regulation

Adjustable CC Regulation

Built-in Primary winding inductance compensation

Excellent Protection Coverage:

     Over Temperature Protection (OTP)

     Cycle-by-Cycle Current Limiting (OCP)

     LED open/short Protection

    Auto- recovery protection Mode         


         

三、Applications


GU10 LED spotlight


LED Bulb


四、Package/Order Information


五、Typical Application

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CTC Technology Co.,Ltd All rights reserved. ICP1415592  E-MAIL:lynn@ctc-semi.com

Head office:No.8,Yanhe East Street, Ailingkan Village, Dalingshan Town, Dongguan City, Guangdong Province, China
Tel:+86-769-85638990-8004   Mob:+86-15015274260 Ms Lynn  

Tel: +86-769-85638990 Mob:+86-18923224605   Ms Ye
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Guangdong ICP for 14015592