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.
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
Applications:
◆ Notebook Adapter ◆ CRT/LCD/PDP TV Power ◆ DLP Projector/RPD Power ◆ Home Appliance Power
Typical Application:
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