OB2201/T
Quasi Resonant PWM Controller


OB2201 is a QR PWM Controller dedicated for 20W~65W power range offline applications. Reduced switching loss and improved EMI performance are achieved through QR control. The optimized loading/ frequency adaptive design will benefit average efficiency and help to meet EPS2.0 requirement.


Features:

# Up to 90% full load efficiency
# Programmable soft start
# High precision output OVP
# IC VDD OVP
# Multi-mode QR control
# Optimized over power protection (OPP)
# Upper frequency clamp at 90KHz
# QR mode 52kHz lower frequency clamping
# 600mA gate drive capability
# Built-in over temperature protection
# Selectable built-in Latch shutdown for strong system reliability
# Available in DIP8 and SOP8 packages,RoHS compliant



Applications:

# EPC Adapter
# DLP Projector/RPD Power
# DVD/STB Player Power
# Home Appliance Power



Typical Application: