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

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86-400-788-7770

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 High-accuracy Primary-Side Converterfor LED without Auxiliary Winding

                                                                                              Product:PN8326


一、General Description

The PN8326 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) , Rcs open/short Protection and LED-open/short circuit protection etc. Internal HV Start-up circuit andthe chip’s very low consumption help to meet high efficiency. In CC control, the current and output power setting can be adjustedexternally by the sense resistor Rcs at CS pin, and the chip can meet the requirement of wide-range line voltage certification.


、 Features 

Internal 700V avalanche-rugged power MOSFET


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


Primary-side Sensing and Regulation Without TL431 andOpto-coupler


Internal HV self-supply without auxiliary winding


Patented Built-in Line compensation circuit


±3% Constant current Regulation


Adjustable CC Regulation


1% precision Line voltage Compensation


Built-in Primary winding inductance compensation


Excellent Protection Coverage:

       Over Temperature Protection (OTP)


       Cycle-by-Cycle Current Limiting (OCP)


       LED open/short Protection


       Patented Rcs open/short Protection


       Auto- recovery protection Mode


三、Applications


GU10 LED spotlight


LED Bulb

四、Package/Order Information




五、Typical Application


FREE HOT LINE:+86-400-788-7770

Tel:+86-769-81150556     Mob:+86-18929103949  Ms Tang

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Foshan office: No.169 Rongqi Road,Ronggui Village,Shunde District,Foshan City,Guangdong Province,China

Shenzhen office:Baifuhui Industrial Park,Jianshedonglu Road,Longhua District,Shenzhen City,Guangdong Province,China

Zhongshan office:Shijihaoting,Longchang Road,Dongsheng Village,Zhongshan City,Guangdong Province,China

Hangzhou office:Jiangnanmoka,Wenyan Village,Xiaoshan District,Hangzhou City,Zhejiang Province,China

 

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