1.5A Dual WLED Flash Driver with I2C Compatible Interface CXLE88130是一款2MHz固定工作频率电流模式同步升压转换器，此器件能为LED闪光灯提供双通道750mA恒流驱动。CXLE88130内置I2C总线接口，通过I2C控制接口可以实现对Movie-Mode的开启和关断，并设置其电流大小。另外，CXLE88130也可以分别控制2通道

   产品概述 返回TOPfq2嘉泰姆

    CXLE88130是一款2MHz固定工作频率电流模式同步升压转换器，此器件能为LED闪光灯提供双通道750mA恒流驱动。CXLE88130内置I2C总线接口，通过I2C控制接口可以实现对Movie-Mode的开启和关断，并设置其电流大小。另外，CXLE88130也可以分别控制2通道LED开启/关断，并调整其最长闪光时间（FTO）。通过同一外接电阻可以设定Flash模式和Movie模式最大电流，二者的比例比例默认为6.1:1。CXLE88130集成列过压保护和过流保护，可分别对LED开路和LED下端短路进行保护。此芯片在关断时静态电流<1.0uA。The CXLE88130 is a 2MHz fixed frequency, current mode synchronous boost converter. The device is designed to operate as a dual 750mA (1.5A total) constant current driver for flash white LED application. An industry-standard I2C serial digital input is used to enable, disable and set the movie-mode current for each flash LED with up to 16 movie-mode settings. The CXLE88130 also includes a separate Flash Enable input to initiate both the flash operation and the default timer, which can be used either to terminate a flash event at the end of a user-programmed delay or as a safety feature. The maximum flash and movie-mode current is set by one external resistor; the ratio of Flash to Movie-mode current is set at approximately 6.1:1. An over-voltage protection feature keeps the output voltage below the OVP threshold in case of an open LED and an output short circuit protection limits the output current during an output short to GND. The chip’s quiescent current is less than 1.0μA in shutdown mode.

   产品特点 返回TOPfq2嘉泰姆

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• 输入电压范围：2.7V~5.5Vfq2嘉泰姆

• 独立控制的双通道LED驱动fq2嘉泰姆

• 最大1.5A输出电流（单通道750mA）</p>

• 效率可达85%fq2嘉泰姆

• 2MHz开关频率</p>

• 内置I2C总线控制fq2嘉泰姆

- 400KHz串行传输速度fq2嘉泰姆

- 16级Movie模式输出电流fq2嘉泰姆

- Flash模式和Movie模式电流比例可调fq2嘉泰姆

- FTO时间可调fq2嘉泰姆

• 负载完全断开fq2嘉泰姆

• 输入电流限制fq2嘉泰姆

• 内置输出过压、输出短路、过温保护</p>

• 3mm*3mm TDFN封装fq2嘉泰姆

• 符合RoHS指令，无铅封装</p>

2.7V to 5.5V Input Supply Rangefq2嘉泰姆

Dual Channel Output with Separatefq2嘉泰姆

Flash Enablefq2嘉泰姆

Up to 1.5A Regulated Output Currentfq2嘉泰姆

(750mA per channel)fq2嘉泰姆

Up to 85% Efficiencyfq2嘉泰姆

2 MHz Fixed Switching Frequencyfq2嘉泰姆

I2C Compliant Serial Interfacefq2嘉泰姆

- 400kHz Serial Transfer Ratefq2嘉泰姆

-16 Level Movie-mode Currentfq2嘉泰姆

-Flash/Movie-modefq2嘉泰姆

-Programmable LED Currentfq2嘉泰姆

-Programmable Flash Safety Timerfq2嘉泰姆

True Load Disconnectfq2嘉泰姆

Input Current Limitfq2嘉泰姆

Output Over-Voltage, Short Circuit, andfq2嘉泰姆

Over-Temperature Protectionfq2嘉泰姆

3mm′ 3mm TDFN-14 Packagefq2嘉泰姆

RoHS Compliant and 100% Lead (Pb)-Freefq2嘉泰姆

Halogen-Freefq2嘉泰姆

   应用范围 返回TOPfq2嘉泰姆

fq2嘉泰姆

• 智能手机和照相手机</p>

• 数码相机fq2嘉泰姆

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Camera-enabled Cellular Phonesfq2嘉泰姆

and Smart Phonesfq2嘉泰姆

Digital Still Cameras (DSCs)fq2嘉泰姆

LED Photo Flash/Torchfq2嘉泰姆

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