• Part: OB2203
  • Description: Quasi-Resonant Flyback PWM Controller
  • Manufacturer: On-Bright
  • Size: 424.46 KB
OB2203 Datasheet (PDF) Download
On-Bright
OB2203

Description

OB2203 is a highly integrated Quasi-Resonant (QR) controller optimized for high performance offline flyback converter applications.

Key Features

  • Multi-Mode Operation
  • Quasi-Resonant Operation at Normal Loading
  • Pulse Frequency Modulation (PFM) Operation at
  • Burst Mode at No Load
  • Direct Control of the Power Supply of PFC
  • 40KHz Minimum Frequency Limit at QR Mode
  • 130KHz Maximum Frequency Limit
  • Internal Minimum T_off for Ringing Suppression
  • 45us Maximum On Time Limit
  • Adaptive Slope pensation

Applications

  • Power Adaptor and Open-frame SMPS
OB2203 reference image

Representative OB2203 image (package may vary by manufacturer)