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WS3252 - High Precision CC/CV Primary-Side PWM Controller

General Description

WS3252 is a high-integrated offline PWM controller, optemized for high poformance low power AC/DC charger and adapter adapter application.

WS3252 operates in primary-side sensing and regulation.

Consequently, opto-coupler and TL431 could be eliminated, thus reduce the cost.

Key Features

  • 5uA ultra-low startup current.
  • 2mA Low operating current.
  • ±5% Constant Voltage Regulation at Universal AC input.
  • Primary-side Sensing and Regulation Without TL431 and Opto-coupler.
  • Programmable CV and CC Regulation.
  • Built-in Primary winding inductance compensation.
  • Programmable cable drop compensation.
  • Built-in soft start.
  • Built-in Leading-edge blanking.
  • Cycle by cycle over current protection (OCP).
  • VCC over voltage clamp & under voltage loc.

📥 Download Datasheet

Datasheet Details

Part number WS3252
Manufacturer WINSEMI
File Size 226.40 KB
Description High Precision CC/CV Primary-Side PWM Controller
Datasheet download datasheet WS3252 Datasheet

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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WS3252 WS3252 High Precision CC/CV Primary-Side PWM Controller Features ■ 5uA ultra-low startup current ■ 2mA Low operating current ■±5% Constant Voltage Regulation at Universal AC input ■ Primary-side Sensing and Regulation Without TL431 and Opto-coupler ■ Programmable CV and CC Regulation ■ Built-in Primary winding inductance compensation ■ Programmable cable drop compensation ■ Built-in soft start ■ Built-in Leading-edge blanking ■ Cycle by cycle over current protection (OCP) ■ VCC over voltage clamp & under voltage lockout( UVLO) ■ Maximum Gate output voltage clamped at 12V ■ Frequency jittering General Description WS3252 is a high-integrated offline PWM controller, optemized for high poformance low power AC/DC charger and adapter adapter application.