OB2338中文资料High Performance Current Mode PWM Power Switch数据手册OB规格书

描述 Description

OB2338 combines a dedicated current mode PWM controller with a high voltage power MOSFET. It is optimized for high performance, low standby power, and cost effective off-line flyback converter applications in sub 27W range.

OB2338 offers complete protection coverage with automatic self-recovery feature including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), over temperature protection (OTP), over voltage protection and VDD under voltage lockout (UVLO). Excellent EMl performance is achieved with On-Bright proprietary frequency shuffling technique together with soft switching control at the totem pole gate drive output.

The tone energy at below 20KHZ is minimized in the design and audio noise is eliminated during operation.

OB2338 is offered in DIP8 package.

应用 Application

Offline AC/DC flyback converter for
■AC/DC adapter
■PDA power supplies
■Digital Cameras and Camcorder Adapter
■VCR,SVR,STB,DVD&DVCD Player SMPS
■ Set-Top Box Power a Auxiliary Power Supply for PC and Server
■Open-frame SMPS