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

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.

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

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Full PDF Text Transcription

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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.
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