• [ CXLE87125 ]

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1.产品概述       2.产品特点     I9h嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）I9h嘉泰姆

5.产品封装       6.电路原理图  I9h嘉泰姆

7.相关产品I9h嘉泰姆

   产品概述 返回TOPI9h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.I9h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.I9h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℃.I9h嘉泰姆

   产品特点 返回TOPI9h嘉泰姆

• Input Voltage Range: 3V to 5VI9h嘉泰姆

• Dual Flash LED OutputsI9h嘉泰姆
• Drive Up to Total 1.5A or 0.75A per ChannelI9h嘉泰姆
• High Efficiency LED Driver (Up to 90%)I9h嘉泰姆
• 2MHz Step-Up ConverterI9h嘉泰姆
• Very Small Inductor: 1.0μHI9h嘉泰姆
• Independent Flash Mode Enable and Movie/TorchI9h嘉泰姆
    Mode Enable PinsI9h嘉泰姆
• Flash Mode or Movie/Torch Mode Dimming viaI9h嘉泰姆
    PWM ControlI9h嘉泰姆
• 10kHz to 200kHz PWM Dimming FrequencyI9h嘉泰姆
• One Resistor Sets Flash Mode LED CurrentI9h嘉泰姆
• One Resistor Sets Movie/Torch Mode LED CurrentI9h嘉泰姆
• Integrated Thermal Regulation ControlI9h嘉泰姆

• 330kΩ Pull-Down Resistor on ENM or ENF PinI9h嘉泰姆
• LED Open or Short ProtectionI9h嘉泰姆
• Output Over-Voltage ProtectionI9h嘉泰姆
• Cycle-by-Cycle Inductor Current LimitI9h嘉泰姆
• Less than 1μA Shutdown CurrentI9h嘉泰姆
• Available in Green TDFN-3×2-14L PackageI9h嘉泰姆
• Temperature Range: -40℃ to +85℃I9h嘉泰姆

   应用范围 返回TOPI9h嘉泰姆

Portable EquipmentsI9h嘉泰姆

   技术规格书（产品PDF) 返回TOP I9h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！I9h嘉泰姆

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产品封装图 返回TOPI9h嘉泰姆

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电路原理图 返回TOPI9h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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