目录

1.产品概述       2.产品特点     aZc嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）aZc嘉泰姆

5.产品封装       6.电路原理图  aZc嘉泰姆

7.相关产品aZc嘉泰姆

   产品概述 返回TOPaZc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TOPaZc嘉泰姆

• 输入电压范围：2.7V~5.5VaZc嘉泰姆

• 独立控制的双通道LED驱动aZc嘉泰姆

• 最大1.5A输出电流（单通道750mA）aZc嘉泰姆

• 效率可达85%aZc嘉泰姆

• 2MHz开关频率aZc嘉泰姆

• 内置I2C总线控制aZc嘉泰姆

- 400KHz串行传输速度aZc嘉泰姆

- 16级Movie模式输出电流aZc嘉泰姆

- Flash模式和Movie模式电流比例可调aZc嘉泰姆

- FTO时间可调aZc嘉泰姆

• 负载完全断开aZc嘉泰姆

• 输入电流限制aZc嘉泰姆

• 内置输出过压、输出短路、过温保护aZc嘉泰姆

• 3mm*3mm TDFN封装aZc嘉泰姆

• 符合RoHS指令，无铅封装aZc嘉泰姆

2.7V to 5.5V Input Supply RangeaZc嘉泰姆

Dual Channel Output with SeparateaZc嘉泰姆

Flash EnableaZc嘉泰姆

Up to 1.5A Regulated Output CurrentaZc嘉泰姆

(750mA per channel)aZc嘉泰姆

Up to 85% EfficiencyaZc嘉泰姆

2 MHz Fixed Switching FrequencyaZc嘉泰姆

I2C Compliant Serial InterfaceaZc嘉泰姆

- 400kHz Serial Transfer RateaZc嘉泰姆

-16 Level Movie-mode CurrentaZc嘉泰姆

-Flash/Movie-modeaZc嘉泰姆

-Programmable LED CurrentaZc嘉泰姆

-Programmable Flash Safety TimeraZc嘉泰姆

True Load DisconnectaZc嘉泰姆

Input Current LimitaZc嘉泰姆

Output Over-Voltage, Short Circuit, andaZc嘉泰姆

Over-Temperature ProtectionaZc嘉泰姆

3mm′ 3mm TDFN-14 PackageaZc嘉泰姆

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

Halogen-FreeaZc嘉泰姆

   应用范围 返回TOPaZc嘉泰姆

• 智能手机和照相手机aZc嘉泰姆

• 数码相机aZc嘉泰姆

• LED照明手电aZc嘉泰姆

Camera-enabled Cellular PhonesaZc嘉泰姆

and Smart PhonesaZc嘉泰姆

Digital Still Cameras (DSCs)aZc嘉泰姆

LED Photo Flash/TorchaZc嘉泰姆

   技术规格书（产品PDF) 返回TOP aZc嘉泰姆

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！aZc嘉泰姆

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产品封装图 返回TOPaZc嘉泰姆

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电路原理图 返回TOPaZc嘉泰姆

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