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

BROADBAND: RF & WIRELESS

RF, HFC & CATV APPLICATIONS Pluse offers a comprehensive line of RF magnetic components for use in wireless and RF applications, including mobile communications, cable television, hybrid fiber/coax (HFC) equipment, cable modems, set-top boxes, and home networking. The components are al

文件：81.47 Kbytes 页数：2 Pages

PULSE

Ballast control and half-bridge driver in one IC

Description The IRS2158D is a fully integrated, fully protected 600V ballast control IC designed to drive all types of fluorescent lamps. The IRS2158D features include programmable preheat and run frequencies, programmable preheat time, closed-loop half-bridge ignition current regulation, program

文件：773.29 Kbytes 页数：30 Pages

IRF

IRPLDIM3 Wide Range Input Linear Dimming Fluorescent Ballast using the IRS2158D

Description The IRPLDIM3 reference design kit consists of a high power factor wide input voltage range dimming Fluorescent ballast, with a fully isolated 0 to 10V control interface, driving a single T5 28 W rapid start linear lamp. The design contains an EMI filter, active power factor correction

文件：699.8 Kbytes 页数：27 Pages

IRF