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WS3220A - High Precision PSR Constant Current LED Driver

General Description

WS3220A High Precision PSR Constant Current LED Driver

Key Features

  • Built-in 650V Power MOSFET.
  • ±5% LED Current Accuracy.
  • Primary-side Sensing and Regulation Without TL431 and Opto-coupler.
  • No Auxiliary Winding For Sensing And Supplying.
  • Ultra low operating current.
  • LED Open/Short Circuit Protection.
  • CS Resistor Short Circuit Protection.
  • VCC Clamp & under voltage lockout( UVLO).
  • Over Temperature Protection.

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Datasheet Details

Part number WS3220A
Manufacturer WINSEMI
File Size 179.14 KB
Description High Precision PSR Constant Current LED Driver
Datasheet download datasheet WS3220A Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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WS3220A Product Description WS3220A High Precision PSR Constant Current LED Driver Features ■ Built-in 650V Power MOSFET ■ ±5% LED Current Accuracy ■ Primary-side Sensing and Regulation Without TL431 and Opto-coupler ■ No Auxiliary Winding For Sensing And Supplying ■ Ultra low operating current ■ LED Open/Short Circuit Protection ■ CS Resistor Short Circuit Protection ■ VCC Clamp & under voltage lockout( UVLO) ■ Over Temperature Protection Applications ■ GU10 LED driver ■ LED spot light ■ Other LED lighting General Description WS3220A is a high precision primary-side feedback and regulation controller for LED lighting, it operates in constant current control mode and is designed to work in inductor current discontinuous conduction mode and especially suitable for flyback convertor under