Fairchild FSB127H 16W ATX待机电源解决方案

Fairchild公司的FSB1x7H系列是满足2013 ErP Lot 6待机功率法规的绿色模式功率开关, 在单一封装解决方案中集成有先进的电流模式脉宽调制(PWM)和耐雪崩700V SenseFET.器件采用飞兆半导体的mWSaverTM技术，能够大幅降低待机功耗和无负载功耗，可以帮助设计人员解决实现低于0.5W待机模式功耗的难题。主要用在PC,服务器,LCD TV和游戏控制器的辅助电源, VCR, SVR, STB, DVD和DVCD,打印机和扫描仪的SMPS,通用适配器等.本文介绍了FSB117H / FSB127H / FSB147H主要特性,方框图, FSB117H典型应用电路图以及FEBFSB127H_T001评估板主要特性,电路图,材料清单和PCB布局图.
The FSB-series is a next-generation, green-mode Fairchild Power Switch (FPS™) incorporating Fairchild’s innovative mWSaver™ technology, which dramatically reduces standby and no-load power consumption, enabling conformance to all worldwide Standby Mode efficiency guidelines. It integrates an advanced currentmode pulse width modulator (PWM) and an avalancherugged 700V SenseFET in a single package, allowing auxiliary power designs with higher standby energy efficiency, reduced size, improved reliability, and lower system cost than previous solutions.
Fairchild Semiconductor’s mWSaver™ technology offers best-in-class minimum no-load and light-load power consumption. An innovative Ax-CAP™ method, one of the five proprietary mWSaver™ technologies, minimizes losses in the EMI filter stage by eliminating the X-cap discharge resistors while still meeting IEC61010-1 safety requirement. mWSaver™ Green Mode gradually decreases switching frequency as load decreases to minimize switching losses.
A new proprietary asynchronous jitter decreases EMI emission and built-in synchronized slope compensation allows stable peak-current-mode control over a wide range of input voltage. The proprietary internal line compensation ensures constant output power limit over entire universal line voltage range.
Requiring a minimum number of external components, the FSB-series provides a basic platform that is well suited for the cost-eff...