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首页 > 产品中心 > LED驱动电路 > LED背光 > 电荷泵型LED背光 >CXLE8183高效经济的电荷泵白光LED驱动器支持每20毫安驱动6个白色发光二极管调节恒定电流获得均匀强度16步亮度控制自动充电泵模式选择
CXLE8183高效经济的电荷泵白光LED驱动器支持每20毫安驱动6个白色发光二极管调节恒定电流获得均匀强度16步亮度控制自动充电泵模式选择
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CXLE8183是一款高效、经济的电荷泵白光LED驱动器。它支持多达6个白色发光二极管,并调节恒定电流以获得均匀强度。该部分采用1×/1.5×分数电荷泵和低漏电流源,保持了高效率。小等效1×模开环电阻和极低的电流源压降,延长了1×模工作时间,优化了锂离子电池在白光LED应用中的效率。用户可以通过一个脉冲调光控制轻松配置每个LED电流从1.25毫安到20毫安。通过向EN/SET引脚施加脉冲信号,可以实现白光led电流的调光。用户可设置16级电流。工作电压范围为2.7V~5.5V,内部软启动电路有效地降低了启动和模式转换时的涌入电流。

CXLE8183高效经济的电荷泵白光LED驱动器支持每20毫安驱动6个白色发光二极管调节恒定电流获得均匀强度16步亮度控制自动充电泵模式选择
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目录

1.产品概述       2.产品特点     K1n嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)K1n嘉泰姆

5.产品封装       6.电路原理图  K1n嘉泰姆

7.相关产品K1n嘉泰姆

   产品概述 返回TOPK1n嘉泰姆


The CXLE8183 is a high efficiency and cost effective charge pump white LED driver. It supports up to 6 white LEDs and regulates a constant current for uniform intensity. The part maintains the high efficiency by utilizing a 1×/1.5× fractional charge pump and low dropout current sources. The small equivalent 1× mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of 1× mode and optimize the efficiency of Li-ion battery in white LED applications.User can easily configure each LED current from 1.25mA to 20mA by a pulse dimming control. The dimming of white LEDs current can be achieved by applying a pulse signal to the EN/SET pin. There are totally 16 steps of current could be set by users. The operating voltage range is 2.7V to 5.5V. Internal soft-start circuitry effectively reduces the in-rush current while both start-up and mode transition.The CXLE8183 is available in Green TQFN-4×4-16L package and is specified over an ambient temperature range of -40℃ to +85℃.

   产品特点 返回TOPK1n嘉泰姆


• Input Voltage Range: 2.7V to 5.5VK1n嘉泰姆
• Drives up to 6 LEDs at 20mA EachK1n嘉泰姆
• 16-Step Brightness ControlK1n嘉泰姆
• High Efficiency by Fractional Conversion withK1n嘉泰姆
    1× and 1.5× ModesK1n嘉泰姆
• Automatic Charge Pump Mode SelectionK1n嘉泰姆
• Switching Frequency: 1MHzK1n嘉泰姆
• 1% Typical LED Current MatchingK1n嘉泰姆
• Internal Soft-Start Limits Inrush CurrentK1n嘉泰姆
• Low Input Noise and Low EMIK1n嘉泰姆
• Over-Current and Over-Temperature ProtectionK1n嘉泰姆
• Output Over-Voltage ProtectionK1n嘉泰姆
• Under-Voltage Lockout with HysteresisK1n嘉泰姆
• Available in Green TQFN-4×4-16L PackageK1n嘉泰姆

   应用范围 返回TOPK1n嘉泰姆


White LED BacklightingK1n嘉泰姆
White Photo-Flash for DSCsK1n嘉泰姆
Color (RGB) LightingK1n嘉泰姆
Programmable Current SourceK1n嘉泰姆

   技术规格书(产品PDF) 返回TOP K1n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K1n嘉泰姆

 QQ截图20160419174301.jpgK1n嘉泰姆

产品封装图 返回TOPK1n嘉泰姆


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电路原理图 返回TOPK1n嘉泰姆


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155K1n嘉泰姆

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1K1n嘉泰姆

200K1n嘉泰姆

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TSOT-23-6K1n嘉泰姆

CXLE8188K1n嘉泰姆

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200K1n嘉泰姆

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1K1n嘉泰姆

400K1n嘉泰姆

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45K1n嘉泰姆

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CXLE8194K1n嘉泰姆

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1K1n嘉泰姆

200K1n嘉泰姆

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1K1n嘉泰姆

220K1n嘉泰姆

1K1n嘉泰姆

PWMK1n嘉泰姆

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