一,产品概述(General Description)      dcj嘉泰姆

       CXLE8605 是一款高性能升压恒流型LED驱动器，专为驱动1W、3W及5W LED灯设计。其具备卓越的线性调整率与负载调整率，内置固定频率振荡器和频率补偿电路，显著简化外部电路设计。在24V输入电压下，可高效驱动多达16串1W或3W LED灯。dcj嘉泰姆
      The CXLE8605 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W/3W/5W LED units with excellent line and load regulation. The regulator is simple to use because it includes internal frequency compensation and a fixed-frequency oscillator so that it requires a minimum number of external components to work.dcj嘉泰姆
   The CXLE8605 could directly drive 16 Series 1W/3W LED units at VIN=24V . dcj嘉泰姆
   The CXLE8604 regulator is fixed frequency PWM Boost (step-up) LED constant current driver,capable of driving Series 1W/3W/5W LED units with excellentdcj嘉泰姆
line and load regulation. The regulator is simple to use because it includesdcj嘉泰姆
internal frequency compensation and a fixed-frequency oscillator so that itdcj嘉泰姆
requires a minimum number of external components to work.dcj嘉泰姆
     The CXLE8604 could directly drive 11 Series 1W LED units at VIN>12V .dcj嘉泰姆
     The PWM control circuit is able to adjust the duty ratio linearly from 0 todcj嘉泰姆
90%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.dcj嘉泰姆

二.产品特点(Features)dcj嘉泰姆

• 宽输入电压范围：5V至32V，适配多种电源环境dcj嘉泰姆

• 高输出电压：支持升压至60V，可驱动16串1W/3W LED（输入24V时）dcj嘉泰姆

• 精准调光控制：PWM调节占空比（0%-90%线性可调）dcj嘉泰姆

• 高效节能：转换效率超94%，内置0.22V低采样电压dcj嘉泰姆

• 全面保护功能：过流保护、热关断、限流及软启动dcj嘉泰姆

• 简化设计：集成功率MOS、频率补偿模块，减少外围元件dcj嘉泰姆

• 稳定运行：180KHz固定开关频率，5A最大开关电流dcj嘉泰姆

• 灵活控制：支持EN脚TTL关机功能dcj嘉泰姆

• 紧凑封装：TO263-5L，适合高密度PCB布局dcj嘉泰姆

Wide 5V to 32V Input Voltage Rangedcj嘉泰姆
Maximum Boost Output Up to 60Vdcj嘉泰姆
0.22V FB adjustable LED drive currentdcj嘉泰姆
Directly drive 16 Series 1W/3W LED at VIN=24Vdcj嘉泰姆
Fixed 180KHz Switching Frequencydcj嘉泰姆
Max. 5A Switching Current Capabilitydcj嘉泰姆
Up to 94% efficiencydcj嘉泰姆
Excellent line and load regulationdcj嘉泰姆
EN PIN TTL shutdown capabilitydcj嘉泰姆
Internal Optimize Power MOSFETdcj嘉泰姆
Built in Soft-Start Functiondcj嘉泰姆
Built in Frequency Compensationdcj嘉泰姆
Built in Thermal Shutdown Functiondcj嘉泰姆
Built in Current Limit Functiondcj嘉泰姆
Available in TO263-5L packagedcj嘉泰姆
三,应用范围 (Applications)dcj嘉泰姆

LED照明系统、车载灯饰、便携照明设备及工业LED驱动解决方案。dcj嘉泰姆
LED Lightingdcj嘉泰姆
Boost constant current driverdcj嘉泰姆
TFT LED Backlightingdcj嘉泰姆
四.技术规格书下载（产品PDF）CXLE8605dcj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！dcj嘉泰姆

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五,产品封装图 (Package)dcj嘉泰姆

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六.电路原理图dcj嘉泰姆

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七,物料清单dcj嘉泰姆

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   八.性能数据dcj嘉泰姆

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   九。DEMO 实物图dcj嘉泰姆

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    十.PCB 布局dcj嘉泰姆

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  十一. 应用信息dcj嘉泰姆

               PCB 布局指南 dcj嘉泰姆

1. VIN、GND、SW、VOUT 等功率线，粗、短、直；dcj嘉泰姆
2. FB 走线远离电感与肖特基等开关信号地方，建议使用地线包围；dcj嘉泰姆
3. 输入电容靠近芯片 VIN 与 GND 引脚。dcj嘉泰姆

十二,功能概述dcj嘉泰姆

十三,相关芯片选择指南dcj嘉泰姆
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