High Performance Current Mode PWM Controller OB2276 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications.Features: ◆ Power on Soft Start Reducing MOSFET Vds Stress ◆ Frequency shuffling for EMI ◆ Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design ◆ Audio Noise Free Operation ◆ Fixed 65KHZ Switching Frequency ◆ Comprehensive Protection Coverage◇ VDD Under Voltage Lockout with Hysteresis (UVLO)◇ Cycle-by-cycle over current threshold setting for constant output power limiting over universal input voltage range◇ Overload Protection (OLP) with auto-recovery◇ Brownout Protection with auto-recovery◇ Fixed VDD OVP with latch shut down◇ Adjustable VDD OVP with latch shut down◇ Over Temperature Protection with latch shut down◇ Output Over Voltage Protection with latch shut down ◆ Available in SOP8 packages, RoHS compliantApplications: Offline AC/DC flyback converter for ◆ Battery Charger ◆ Power Adapter ◆ Set-Top Box Power Supplies ◆ Open-frame SMPSDevice VDD OVP OTP Load OVP OB2276 Latch Latch Latch OB2276A Auto-recovery Auto-recovery Auto-recovery