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标题 2011年中青年干部培训班学员井冈山考察学习体会
内容     【ADI - ADP1653】产品规格Input Voltage Range 3 to 5.5VShutdown Current 0.1uAOperating Current 500uASwitching Frequency 1.2MHzOperating Temperature ﹣40℃ to +125℃产品特性92% peak efficiency2.1 A, 12 V power switchPin-selectable interface: 2-bit logic or I2C®Programmable indicator LED current up to 20 mALow noise, 1.2 MHz PWM operationInterrupt output pinFault condition registerShort-circuit protectionOutput overvoltage protectionThermal overload protectionIntegrated current limit and soft startSmall 3 mm × 3 mm, 16-lead LFCSP footprint产品应用Camera-enabled cellular phones, smart phones,Digital still cameras, camcorders, PDAs文字介绍ADP1653 是高效率LED闪光灯/手电筒驱动器, 可动态调整LED的驱动电流提高闪光灯的亮度及拍摄相片的影像质量. 92%的超高效率胜过charge pump的方案可有效延长电池的使用时间.AD1653提供了GPIO及I2C两种控制界面,并内建多项安全检测功能 如Sort Start/Flash timeout/output current limit/thermal protection/overvoltage protection,能透过内建的中断机制通知系统MCU进而保护产品超小型化包装非常适合用于手持装置. 【ADI - ADP5520】|中华励志網|www.zhlzw.com为您提供学习资料|产品规格Input Voltage Range 2.7 to 5.5VShutdown Current 0.1uAStandby Current 17uAOperating Temperature ﹣40℃ to +85℃产品特性85% efficiencyProgrammable backlight fade in/out timesProgrammable backlight dim and off timesAmbient light sensor for automatic backlight adjustment64 programmable auxiliary LED current levelsI2C compatible serial interfaceCurrent limit protectionShort-circu
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