OB2203中文资料Quasi Resonant PWM Controller数据手册OB规格书

描述 Description

OB2203 is a highly integrated Quasi-Resonant controller optimized for high performance offline flyback converter applications. Reduced switching loss and improved EMI performance is achieved through Quasi Resonance control. A built-in P-channel MOSFET and its control are integrated to automatically turn on/off PFC stage according to the load conditions.

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特性 Features

· PFC power supply control function integrated for PFC shutdown at no load and light load condition
· Programmable soft start
· Programmable load OVP
· Multi-Mode quasi resonance control for efficiency improvement and EMI optimize
· 1A gate drive capability
· Built-in slope compensation for better stability at low/high power design
· Upper frequency clamp at 130Khz for better EMI
· Selectable built-in latch shutdown for strong system reliability
· Available in DIP8 and SOP8 packages,RoHS compliant

应用 Application

·Notebook Adapter
·CRT/LCD/PDP TV Power
·DLP Projector/RPD Power
·Home Appliance Power