• [ CXLE8185 ]

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1.产品概述       2.产品特点     gFh嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）gFh嘉泰姆

5.产品封装       6.电路原理图  gFh嘉泰姆

7.相关产品gFh嘉泰姆

   产品概述 返回TOPgFh嘉泰姆

The CXLE8185 is a high performance white LED driver. It integrates current sources and automatic mode selection charge pump. 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.The CXLE8185 supports up to 8 white LEDs and regulates a constant current which the initial value can be set by an internal resistor. The part implements PWM dimming to adjust the brightness of LED. Users can easily configure the LED current from 0mA to 27mA by a digital PWM signal. CXLE8185 can be turned off by EN pin. 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 CXLE8185 is available in Green TQFN-3×3-20L package and is rated over the -40℃ to +85℃ temperature range.

   产品特点 返回TOPgFh嘉泰姆

• Input Voltage Range: 2.7V to 5.5VgFh嘉泰姆
• Drives up to 8 LEDs at 27mA EachgFh嘉泰姆
• PWM DimminggFh嘉泰姆
• High Efficiency by Fractional Conversion withgFh嘉泰姆
    1× and 1.5× ModesgFh嘉泰姆
• Switching Frequency: 0.93MHzgFh嘉泰姆
• Regulated Output Current with ±4.8% MatchinggFh嘉泰姆
• Internal Soft-Start Limits Inrush CurrentgFh嘉泰姆
• Low Input Ripple and Low EMIgFh嘉泰姆
• Over-Current and Over-Temperature ProtectiongFh嘉泰姆
• Under-Voltage Lockout with HysteresisgFh嘉泰姆
• Available in Green TQFN-3×3-20L PackagegFh嘉泰姆

   应用范围 返回TOPgFh嘉泰姆

Mobile Phone, DSC, MP3gFh嘉泰姆
White LED BacklightinggFh嘉泰姆
LCD Display SupplygFh嘉泰姆

   技术规格书（产品PDF) 返回TOP gFh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！gFh嘉泰姆

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产品封装图 返回TOPgFh嘉泰姆

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电路原理图 返回TOPgFh嘉泰姆

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◀ 上一篇:CXLE8184高性能的6个白色LED并调节恒定电流驱动程序电流源和自动模式选择电荷泵PWM调光来调节LED的亮度低输入纹波和低EMI过流和过温保护带滞后的欠压锁定

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下一篇▶:CXLE8186高性能的白色LED驱动程序电流源和自动模式选择1×/1.5×分数电荷泵和低漏电流源支持8个白色LED并调节恒定电流内部电阻器设置4位DAC用于亮度控制

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