WINSEMI WS3231
WS3231 is a high PF primary-side feedback and regulation controller for LED lighting, optimized for flyback converter with the output power less than 30W. The low component counts and small system size are realized. WS3231 offers comprehensive protection including Cycle-by-Cycle current limiting (OCP), LED open/short circuit protection, CS resistor short circuit protection, VCC UVLO,OVP and Clamp, and over temperature protection.
| Part No. |
WS3231 |
| Datasheet |
WS3231
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| Manufacturer |
 WINSEMI |
| Description |
High PF PSR Constant Current LED Driver |
| Buy |
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FEATURES
±5% LED Current Accuracy Primary-side Sensing and Regulation Without TL431 and Opto-coupler No Auxiliary Winding For Sensing And Supplying High Power Factor Correction QR mode 600V MOS integrated Ultra low operating current LED Open/Short Circuit Protection CS Resistor Short Circuit Protection VCC over voltage protection & under voltage lockout( UVLO) Over Temperature Protection APPLICATIONS
GU10 LED driver LED spot light Other LED lighting Typical Application Circuit GENERAL DESCRIPTION
Since adopting primary sense and feedback control technology, the secondary sense and feedback circuit is eliminated. And WS3231 does not need the auxiliary winding for sensing the output current and supplying the chip. Since using the high accurate current sense method, WS3231 realizes ±5% accuracy of LED current along with excellent line and load regulation. WS3231 is available in SOP-8 package. NP NS AC 1 VCC 2 NC 3 COMP 4 CS GND 8 GND 7 D6 D5 W/T-S035-Rev.A/0 Dec.2013 Copyright@Winsemi Microelectronics Co., Ltd., All right r eserved.
