CXLE8171是一款专为白光LED设计的升压型恒流驱动器. 通过内置45V功率管,使得CXLE8171能驱动单串10LEDs串连负载,从而保证所有LED电流相同。CXLE8171内置升压转换器工作在1MHz震荡频率和1.3A电流极限,也能用于通用型的高亮度LED照明。CXLE8171回馈电压为200mV,通过回馈电阻可以设置LED最大输出电流。通过外加在EN端的PWM调光信号,可以得到与PWM占空比成比例的LED电流输出,其PWM调光频率范围:8KHz~200KHz,并在调光时不会在输出电容上产生音频噪声。其内置38.5过压保护功能为LED提供开路保护
 
[ CXLE8171 ]
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产品概述 返回TOP
产品特点 返回TOP
‧2.6V~5.5V输入电压
‧38.5V过压保护
‧内置软启动
‧补偿内置
‧PWM调光频率范围:8KHz~200KHz
‧内置45V功率管
‧工作频率高达1MHz
‧过压保护
‧过温保护
‧输入欠压锁定
‧TSOT23-6封装
‧符合RoHS规范及Pb-Free
2.6V to 5.5V Input Range
41.5V Output Over Voltage Protection
Internal Soft-Start
Internal Compensation
External PWM Dimming with 8KHz - 100KHz
Frequency Range
Internal 45V N-FET
1MHz Fixed Switching Frequency
Over Voltage Protection
Over Thermal Protection
VIN Under Voltage LockOut
Available in TSOT23-6 Package
RoHS Compliant and 100% Lead (Pb)-Free
Halogen-Free
应用范围 返回TOP
‧移动电话
‧GPS 导航系统
‧便携媒体播放器
‧手持设备、数码相机
‧便携游戏机
Mobile Phones
GPS Navigation Systems
Portable Media Players
Handheld Devices, Digital Camera
Portable Game Machines
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产品封装图 返回TOP
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电路原理图 返回TOP

| 白光LED驅動器 > LED背光 | |||||||||
| Part Number | remark | Vin (V) | Vout (max)(V) | FB(V) | IQ(mA) | Isw(A) | Max LED | Peak Efficency (%) | Package | 
| Small Package, High Performance, Asynchronies Boost for WLED Driver | 2.6~5.5 | 18 | 0.2 | 0.4 | 2 | 15P3S | 93 | TSOT23-5 | |
| White LED Driver For Buck-Boost Application | 6~25 | 32 | Vctrl/10 | 1.3 | 1.4 | 3 x 9 = 27 | 90 | TDFN-8 | |
| White LED Boost Converter with PWM Dimming and Single-Wire Interface | 2.7~5.5 | 38 | 0.2 | 0.35 | 1.3 | 12 | 91 | TDFN-6 | |
| 10 White LED Boost Converter with PWM Dimming and Single-Wire Series Interface | 2.5 ~ 5.5 | 38.5 | 0.2/0.3 | 0.3 | 1.3 | 12 | 88 | TSOT23-6,SOT23-6 | |
| 10 White LED Boost Converter with PWM Dimming | 2.5~5.5 | 38.5 | 0.2 | 0.3 | 1.3 | 12 | 88 | TSOT23-6 | |
| 6 String White LED Driver with Boost Converter | 2.5~24 | 43 | 0.5 | 2 | 2.5 | 6 × 10= 60 | 90 | TQFN-20 | |
| 4 Strings High Current White LED Driver with Boost Controller | 4.5~28 | 65 | 0.6 | 0.75 | - | 4 x 18 =72 | 93 | SOP-16 | |
| 12 String White LED Driver With Boost Controller | 4.5~28 | 65 | 0.6 | 1.5 | - | 216 | 93 | TSSOP-28(EP) | |
◀ 上一篇:集成PWM单线调光WLED升压恒流驱动单串10LEDs串连负载保证LED电流相同1MHz震荡频率和1.3A电流极限CXLE8170单线调光在EN端加入符合协议的脉冲信号获得32阶LED电流信号
下一篇▶:4路大电流白光LED升压驱动芯片CXLE8173用于大尺寸LCD面板LED背光驱动器内部集成大功率高效率升压转换器提供4通道LED电流驱动电路PWM亮度调光模式
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