低噪声的电荷泵型闪光灯驱动芯片

CP2158为一款低噪声的电荷泵型闪光灯驱动芯片，专为大电流高亮度LED闪光灯提供驱动而设计，在3.7V电源电压下CP2158的最大输出功率可达3.5W。支持手电筒模式和闪光灯模式的切换。CP2158内置的电荷泵可以根据负载与电源的状态自动在1倍电荷泵模式和2倍电荷泵模式之间切换，确保为LED输出恒定的电流。\r\n 在手电筒模式下，CP2158默认FB电压为50mV。FLASH模式下的FB电压由外部的RSET电阻进行设置，推荐RSET电阻的选取范围55K至120K，分别对应270mV至125mV的反馈电压。（FB参考电压的计算公式：VFB=（1.23/RSET）X12.1K）\r\n -闪光灯峰值输出电流900mA-支持TORCH模式与FLASH模式-TORCH模式下FB电压内置为50mV-FLASH模式下FB电压由外置电阻配置-FLASH模式下内置了280ms的闪光时间限制Ÿ-TORCH模式下最高效率90%Ÿ-具备软启动电路防止对电源产生大电流冲击Ÿ- 关机电流小于1uAŸ-2MHz的开关频率Ÿ-过压保护功能Ÿ-碰地保护功能-过温保护功能Ÿ-3mmX3mm 10-PIN DFN封装;

Chiphomer

启攀微电子

THREE COLOR EMITTED LED DOT MATRIX DISPLAY

FEATURES : Three emittied color : High efficiency red, green, orange (The mixture of high efficiency red and green) Anode column, Cathode row (MOG2158TA); Cathode column, Anode row (MOG2158TC) high contrast Wide viewing angle 5 x 8 matrix array with row-column select

文件：93.01 Kbytes 页数：2 Pages

MICRO-ELECTRONICS

THREE COLOR EMITTED LED DOT MATRIX DISPLAY

FEATURES : Three emittied color : High efficiency red, green, orange (The mixture of high efficiency red and green) Anode column, Cathode row (MOG2158TA); Cathode column, Anode row (MOG2158TC) high contrast Wide viewing angle 5 x 8 matrix array with row-column select

文件：93.01 Kbytes 页数：2 Pages

MICRO-ELECTRONICS

2.3 inch ( 58.42mm ) 5X8 DOT MATRIX LED DISPLAY

DESCRIPTION The UVP-2058/2158/2458AA/2558AA is 2.3 inch (58.42mm) height 5X8 dot matrix display. Single color display have the choices of three bright colors-AlGaAs red/green/red orange. Multicolor display are applicable to two colors : green and red orange. All device have gray face and white

文件：97.87 Kbytes 页数：5 Pages

UOT

东贝光电