一,产品概述(General Description)      h46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。h46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.h46嘉泰姆
   The CXLE8605 could directly drive 16 Series 1W/3W LED units at VIN=24V . h46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 excellenth46嘉泰姆
line and load regulation. The regulator is simple to use because it includesh46嘉泰姆
internal frequency compensation and a fixed-frequency oscillator so that ith46嘉泰姆
requires a minimum number of external components to work.h46嘉泰姆
     The CXLE8604 could directly drive 11 Series 1W LED units at VIN>12V .h46嘉泰姆
     The PWM control circuit is able to adjust the duty ratio linearly from 0 toh46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.h46嘉泰姆

二.产品特点(Features)h46嘉泰姆

• 宽输入电压范围：5V至32V，适配多种电源环境h46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）h46嘉泰姆

• 精准调光控制：PWM调节占空比（0%-90%线性可调）h46嘉泰姆

• 高效节能：转换效率超94%，内置0.22V低采样电压h46嘉泰姆

• 全面保护功能：过流保护、热关断、限流及软启动h46嘉泰姆

• 简化设计：集成功率MOS、频率补偿模块，减少外围元件h46嘉泰姆

• 稳定运行：180KHz固定开关频率，5A最大开关电流h46嘉泰姆

• 灵活控制：支持EN脚TTL关机功能h46嘉泰姆

• 紧凑封装：TO263-5L，适合高密度PCB布局h46嘉泰姆

Wide 5V to 32V Input Voltage Rangeh46嘉泰姆
Maximum Boost Output Up to 60Vh46嘉泰姆
0.22V FB adjustable LED drive currenth46嘉泰姆
Directly drive 16 Series 1W/3W LED at VIN=24Vh46嘉泰姆
Fixed 180KHz Switching Frequencyh46嘉泰姆
Max. 5A Switching Current Capabilityh46嘉泰姆
Up to 94% efficiencyh46嘉泰姆
Excellent line and load regulationh46嘉泰姆
EN PIN TTL shutdown capabilityh46嘉泰姆
Internal Optimize Power MOSFETh46嘉泰姆
Built in Soft-Start Functionh46嘉泰姆
Built in Frequency Compensationh46嘉泰姆
Built in Thermal Shutdown Functionh46嘉泰姆
Built in Current Limit Functionh46嘉泰姆
Available in TO263-5L packageh46嘉泰姆
三,应用范围 (Applications)h46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。h46嘉泰姆
LED Lightingh46嘉泰姆
Boost constant current driverh46嘉泰姆
TFT LED Backlightingh46嘉泰姆
四.技术规格书下载（产品PDF）CXLE8605h46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！h46嘉泰姆

 h46嘉泰姆

五,产品封装图 (Package)h46嘉泰姆

h46嘉泰姆
六.电路原理图h46嘉泰姆

h46嘉泰姆
七,物料清单h46嘉泰姆

      h46嘉泰姆
   八.性能数据h46嘉泰姆

        h46嘉泰姆
   九。DEMO 实物图h46嘉泰姆

        h46嘉泰姆
    十.PCB 布局h46嘉泰姆

             h46嘉泰姆
  十一. 应用信息h46嘉泰姆

               PCB 布局指南 h46嘉泰姆

1. VIN、GND、SW、VOUT 等功率线，粗、短、直；h46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；h46嘉泰姆
3. 输入电容靠近芯片 VIN 与 GND 引脚。h46嘉泰姆

十二,功能概述h46嘉泰姆

十三,相关芯片选择指南h46嘉泰姆
h46嘉泰姆