OB2287

High Power PWM Control IC

OB2287/OB2288 is a high performance PWM control IC designed for high power AC/DC switch-mode power supply applications. OB2287 is designed for flyback applications while OB2288 is for forward mode with maximum duty cycle of 50%. OB2287/OB2288 is optimized by incorporating performance and protection features to support customer requirements with reduced application complexity, reduced BOM cost and reduced design cycle time.

Features:

◆1500mA gate drive capability with optimized drive control ◆Built in brown out/recovery control to improve system reliability without adding extra cost

◆Power on soft start

◆Built-in leading edge blanking(LEB) at sense input

◆Frequency shuffling for system EMI improvement

◆Wide VDD input range with VDD OVP latch and clamp protections.

◆Noise immunity design

◆Internal selectable latch shutdown to improve system reliability

◆Available in DIP8 and SOP8 packages,RoHS compliant

Applications:

◆LCD TV, LCD Monitor

◆ Printer Power

◆ Power Adapter

◆ PC Power

◆ Notebook Adapter

Typical Application: