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: