• [ CXLE87125 ]

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1.产品概述       2.产品特点     8ak嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）8ak嘉泰姆

5.产品封装       6.电路原理图  8ak嘉泰姆

7.相关产品8ak嘉泰姆

   产品概述 返回TOP8ak嘉泰姆

The CXLE87125 is the ideal power solution for highpower flash LEDs used with cell phone camera modules or digital still cameras. It is a highly integrated step-up DC/DC converter with very high switching frequency, fixed at 2MHz, providing a very small total solution for portable photo flash. The CXLE87125 has separate Flash mode and Movie/Torch mode enable pins for maximum flexibility. The Flash mode and Movie/Torch mode LED current is programmed by external resistors respectively, making the flash LED solution simple to control. If both enable pins are at logic high, the LED current will be programmed by the Movie/Torch mode setting resistor.

The two LED output sinks can be shorted together externally for higher power single flash LEDs, up to 1.5A continuous LED current. Thermal regulation is integrated in Flash mode to limit the IC’s temperature and continuously provide the maximum allowed output current.8ak嘉泰姆

Various protection features are built into the CXLE87125, including cycle-by-cycle input current limit protection, output over-voltage protection, LED fault (open or short) protection and thermal shutdown protection. The leakage current in shutdown is less than 1μA.8ak嘉泰姆

The CXLE87125 is available in Green TDFN-3×2-14L package. It operates over an ambient temperature range of -40℃ to +85℃.8ak嘉泰姆

   产品特点 返回TOP8ak嘉泰姆

• Input Voltage Range: 3V to 5V8ak嘉泰姆

• Dual Flash LED Outputs8ak嘉泰姆
• Drive Up to Total 1.5A or 0.75A per Channel8ak嘉泰姆
• High Efficiency LED Driver (Up to 90%)8ak嘉泰姆
• 2MHz Step-Up Converter8ak嘉泰姆
• Very Small Inductor: 1.0μH8ak嘉泰姆
• Independent Flash Mode Enable and Movie/Torch8ak嘉泰姆
    Mode Enable Pins8ak嘉泰姆
• Flash Mode or Movie/Torch Mode Dimming via8ak嘉泰姆
    PWM Control8ak嘉泰姆
• 10kHz to 200kHz PWM Dimming Frequency8ak嘉泰姆
• One Resistor Sets Flash Mode LED Current8ak嘉泰姆
• One Resistor Sets Movie/Torch Mode LED Current8ak嘉泰姆
• Integrated Thermal Regulation Control8ak嘉泰姆

• 330kΩ Pull-Down Resistor on ENM or ENF Pin8ak嘉泰姆
• LED Open or Short Protection8ak嘉泰姆
• Output Over-Voltage Protection8ak嘉泰姆
• Cycle-by-Cycle Inductor Current Limit8ak嘉泰姆
• Less than 1μA Shutdown Current8ak嘉泰姆
• Available in Green TDFN-3×2-14L Package8ak嘉泰姆
• Temperature Range: -40℃ to +85℃8ak嘉泰姆

   应用范围 返回TOP8ak嘉泰姆

Portable Equipments8ak嘉泰姆

   技术规格书（产品PDF) 返回TOP 8ak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！8ak嘉泰姆

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产品封装图 返回TOP8ak嘉泰姆

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电路原理图 返回TOP8ak嘉泰姆

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◀ 上一篇:CXLE87124双闪光灯LED输出手机摄像头模块或数码相机的大功率闪光LED的理想电源解决方案2兆赫升压型DC转换器单独的闪光模式和电影火炬模式每个通道最多可驱动1.5A或0.75A循环电感电流限制

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下一篇▶:CXLE87126双闪光灯LED输出每个通道可驱动1.5A或0.75A独立闪光模式启用和电影/火炬2兆赫升压转换器可通过ENM引脚的脉宽调制信号编程660ms闪光定时器控制ENM或ENF引脚上的330kΩ下拉电阻器

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