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:
