• [ CXLE88130 ]"

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1.产品概述       2.产品特点     JJ0嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）JJ0嘉泰姆

5.产品封装       6.电路原理图  JJ0嘉泰姆

7.相关产品JJ0嘉泰姆

   产品概述 返回TOPJJ0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TOPJJ0嘉泰姆

• 输入电压范围：2.7V~5.5VJJ0嘉泰姆

• 独立控制的双通道LED驱动JJ0嘉泰姆

• 最大1.5A输出电流（单通道750mA）JJ0嘉泰姆

• 效率可达85%JJ0嘉泰姆

• 2MHz开关频率JJ0嘉泰姆

• 内置I2C总线控制JJ0嘉泰姆

- 400KHz串行传输速度JJ0嘉泰姆

- 16级Movie模式输出电流JJ0嘉泰姆

- Flash模式和Movie模式电流比例可调JJ0嘉泰姆

- FTO时间可调JJ0嘉泰姆

• 负载完全断开JJ0嘉泰姆

• 输入电流限制JJ0嘉泰姆

• 内置输出过压、输出短路、过温保护JJ0嘉泰姆

• 3mm*3mm TDFN封装JJ0嘉泰姆

• 符合RoHS指令，无铅封装JJ0嘉泰姆

2.7V to 5.5V Input Supply RangeJJ0嘉泰姆

Dual Channel Output with SeparateJJ0嘉泰姆

Flash EnableJJ0嘉泰姆

Up to 1.5A Regulated Output CurrentJJ0嘉泰姆

(750mA per channel)JJ0嘉泰姆

Up to 85% EfficiencyJJ0嘉泰姆

2 MHz Fixed Switching FrequencyJJ0嘉泰姆

I2C Compliant Serial InterfaceJJ0嘉泰姆

- 400kHz Serial Transfer RateJJ0嘉泰姆

-16 Level Movie-mode CurrentJJ0嘉泰姆

-Flash/Movie-modeJJ0嘉泰姆

-Programmable LED CurrentJJ0嘉泰姆

-Programmable Flash Safety TimerJJ0嘉泰姆

True Load DisconnectJJ0嘉泰姆

Input Current LimitJJ0嘉泰姆

Output Over-Voltage, Short Circuit, andJJ0嘉泰姆

Over-Temperature ProtectionJJ0嘉泰姆

3mm′ 3mm TDFN-14 PackageJJ0嘉泰姆

RoHS Compliant and 100% Lead (Pb)-FreeJJ0嘉泰姆

Halogen-FreeJJ0嘉泰姆

   应用范围 返回TOPJJ0嘉泰姆

• 智能手机和照相手机JJ0嘉泰姆

• 数码相机JJ0嘉泰姆

• LED照明手电JJ0嘉泰姆

Camera-enabled Cellular PhonesJJ0嘉泰姆

and Smart PhonesJJ0嘉泰姆

Digital Still Cameras (DSCs)JJ0嘉泰姆

LED Photo Flash/TorchJJ0嘉泰姆

   技术规格书（产品PDF) 返回TOP JJ0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！JJ0嘉泰姆

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产品封装图 返回TOPJJ0嘉泰姆

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电路原理图 返回TOPJJ0嘉泰姆

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◀ 上一篇:CXLE88129相机模组Flash LED的电荷泵驱动芯片电感升压的方式工作在闪光灯和手电筒两种工作模式输出1A电流1倍和2倍模式自由切换通过Flash管脚能实现驱动与相机模组同步

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下一篇▶:CXLE88131内置I2C总线接口开启和关断LED闪光灯提供1.5A恒定电流驱动4MHz固定工作频率电流模式同步升压转换器通过两个逻辑输入端STROBE和TX/TORCH能在大电流情况下中断闪光灯模式