OB2202

Quasi Resonant PWM Controller

OB2202 is a QR PWM Controller designed for offline applications. Reduced switching loss and improved EMI performance are achieved through Quasi Resonance control. OB2202 can achieve greater than 90% full-load efficiency and high reliability with its perfect protection function. 


Features: 

◆ Up to 90% full load efficiency 
◆ Built-in high precision brown out/recovery module
◆ Programmable soft start
◆ Input over voltage protection (Line OVP)
◆ High precision output OVP
◆ Multi-mode QR control
◆ 1A gate drive capability
◆ IC VDD OVP
◆ Optimized over power protection (OPP) 
◆ Upper frequency clamp at 130KHz
◆ Built-in over temperature protection
◆ 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 
◆ DVD Player Power
◆ Home Appliance Power

Typical Application: