降压式LED驱动芯片

为高效率、恒电流、降压型直流对直流转换器，仅须透过4个外接组件即可为大电流的LED照明提供稳定之电流。MBI6652的Hysteretic PFM模式能提升效率，其输出电流可透过不同阻值的外接电阻来调整各输出级的电流大小，且在DIM脚连接脉宽调变(PWM)讯号进行调光控制。此外，内置的启动保护可限制电源打开时所产生的突波电流。MBI6652的特色还包括一系列保护IC装置，包括过热保护机制、LED开路与短路。为了确保系统稳定度，MBI6652内置散热保护机制与散热片，加强散热功能并避免芯片过热(165°C)，因此系统可以在大量电流通过时稳定运作。MBI6652目前提供3种封装，包括SOT-23- ·01 Max. Sustaining Voltage ：32V \n·02 Constant Output Current Per Channel ：750mA(max.)\n·03 Topology ：Buck/Hysetersis PFM\n·04 Supply Voltage ：6~30V \n·05 Switch ON Resistance(Typ.) ：0.45 ohm \n·06 Power Efficiency ：96% efficiency @ input voltage 12V, 350mA, 3-LED\n·07 Dimming Method ：Digital\n;

Macroblock

聚积科技

P-Channel Silicon MOSFET General-Purpose Switching Device Applications

General-Purpose Switching Device Applications Features • 4V drive. • Composite type with 2 MOSFETs contained in a single package, facilitating high-density mounting.

文件：57.74 Kbytes 页数：4 Pages

SANYO

三洋

10/100Mbps Ethernet Fiber and Copper Media Converter with Auto Negotiation

GENERAL DESCRIPTION The ML6652 is a low cost multi-function / multi-standard single chip Media Converter that provides 10Mbps and 100Mbps signal conversion between twisted pair and fiber optic Ethernet technologies. The device supports conversion between: 10BASE-T and 10BASE-FL 100BASE

文件：196.97 Kbytes 页数：28 Pages

MICRO-LINEAR

10/100Mbps Ethernet Fiber and Copper Media Converter with Auto-Negotiation

文件：667.06 Kbytes 页数：28 Pages

MICRO-LINEAR