OB2202 Quasi Resonant PWM Controller
OB2202 is a QR PWM Controller designed for offline applications. Reduced switching loss and improved EMI performance are achieved through Quasi Resonance control. OB2202 can achieve greater than 90% full-load efficiency and high reliability with its perfect protection function.
Features:
◆ Up to 90% full load efficiency
◆ Built-in high precision brown out/recovery module
◆ Programmable soft start
◆ Input over voltage protection (Line OVP)
◆ High precision output OVP
◆ Multi-mode QR control
◆ 1A gate drive capability
◆ IC VDD OVP
◆ Optimized over power protection (OPP)
◆ Upper frequency clamp at 130KHz
◆ Built-in over temperature protection
◆ Selectable built-in latch shutdown for strong system reliability
◆ Available in DIP8 and SOP8 packages,RoHS compliant
Applications:
◆ Notebook Adapter
◆ CRT/LCD/PDP TV Power
◆ DLP Projector/RPD Power
◆ DVD Player Power
◆ Home Appliance Power
OB2202 准谐振PWM控制器
OB2202是一个QR PWM控制器，设计用于脱机应用程序。通过减少开关损耗和改善EMI性能达到准谐振控制。 OB2202可以达到大于90％，满负荷效率和高可靠性，完善的保护功能。
产品特点：
◆高达90％的满载效率
◆内置高精确欠压/恢复模块
◆可编程软启动
◆输入过电压保护（OVP线）
◆高精度输出过压保护（OVP）
◆多模QR控制
◆1A栅极驱动能力
◆IC VDD OVP
◆优化过功率保护（OPP）
◆上限频率钳位在130KHZ
◆内置过温保护
◆可选择内置的闩锁关闭了系统的可靠性强
◆可提供DIP8，SOP8两种封装，符合RoHS标准
应用范围：
◆笔记本电源适配器
◆CRT / LCD / PDP TV电源
◆DLP投影机/ RPD电源
◆DVD播放器的电源
◆家电电源
