型号：LD7790
封装:SOP16
最小包装：2500
The LD7790 features transition mode Power Factor correction (PFC) controller and Quasi-Resonant (QR) current mode controller for cost effective and fewer external components design of high power application.
The intelligent PFC switching ON/OFF, zero current detection (ZCD) and frequency limitation mechanism enable a better efficiency under any load conditions.
The device is also integrated several functions of protection, such as X-CAP discharge, Brown-in/out protection, Over Load protection (OLP), Over Temperature Protection (OTP), Over Voltage Protection (OVP) and Over Current Protection (OCP) with High / Low Line Compensation. Therefore it can protect the system from damage due to occasional failure.
The LD7790 is available in a SOP-16 package.
特点 Integrated PFC and QR Flyback Controller Transition Mode PFC Controller Quasi-Resonant Operation for Flyback Built-in X-CAP Discharging Brown IN/OUT Protection Internal Soft-Start Function Adjustment OLP Debounce time External Latch Protection PFC Light Load Turn-off Control OVP (Over Voltage Protection) OCP (Cycle by cycle current limiting) 500/-1200mA Driving Capability Internal OTP function
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日前，美国芯片制造商德州仪器(TI)公布第一季度财报显示，营收和利润双双超过华尔街预期。其中，营收34亿美元高于去年同期的30.1亿美元，净利润为9.97亿美元高于去年同期的7.11亿美元，主要受益于汽车和工业类客户的需求旺盛，今年以来，德州仪器股价涨幅略好于费城半导体指数涨幅。
目前，德州仪器最新市值超过820亿美元，股价超过82美元，是2008年金融危机后的4倍。如今，华尔街一直有传言，互联网巨头亚马逊希望将市值800亿美金的德州仪器收入囊中。
车用和工业半导体飞速增长，对模拟IC需求大增
根据市场调研机构Semicast Research公布的2016年全球前十大车用半导体供货商排行榜，德州仪器是全球第五大车用半导体供货商。2016年，车用半导体产品对该公司的营收贡献达到18%高于2014年的13%。
