CXLE8168是一款具有宽输入电压范围、专为驱动白光LED设计的恒流升压转换器。凭借其特殊的拓扑结构，芯片提供的负载电压既可以高于输入电压，又可以低于输入电压。芯片可以同时对多路串、并联的LED提供精准的电流调制。CXLE8168具有Analog/PWM两种模式的亮度调节功能，只需要在CTRL引脚加入Analog/PWM信号即可对LED亮度进行控制。芯片的工作频率高达1MHz，结合以脉宽调制（PWM）的工作模式，在保证最小输入纹波的情况下允许用户使用较小的输入/输出电容和电感。可编程的软启动能够消除芯片启动时的浪涌电流。
[ CXLE8168 ]
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产品概述 返回TOP
产品特点 返回TOP
• 6～25V输入电源电压
• 32V过压保护
• 效率高达90%
• PWM和Analog两种调光方式
• 高压功率管内置
• 1MHz开关频率
• 小尺寸外围电感、电容
• 3mm × 3mm TDFN8封装
• 符合RoHS规范及Pb-Free
6V to 25V Input Range
32V (typ.) Output with Overvoltage Protection
Up to 90% Efficiency
Flexible Analog or PWM Dimming Control
Internal High Power MOSFET Switch
1MHz PWM Operation
Small, Low-Profile Inductors and Capacitors
3mm× 3mm TDFN-8 Package
RoHS Compliant and 100% Lead (Pb)-Free
应用范围 返回TOP
• 7~10吋白光LED背光显示驱动
• 12V汽车显示系统
• PDVD和微型笔记
• LED照明设备
7~10 inch White LED Display Backlighting
12V Automotive Display System
PDVD and Subnotebooks
LED Lighting
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
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电路原理图 返回TOP
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白光LED驅動器 > LED背光 |
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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) |
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◀ 上一篇:CXLE8167白光LED阵列的高频升压驱动芯片2.0A电流极限为7~10吋LCD面板提供背光驱动13并3/4串白光LED阵列1MHz固定频率电流控制模式升压架构
下一篇▶:CXLE8169白光LED设计的升压型恒流驱动器驱动单串10LED串连负载1.2MHz震荡频率1.3A电流极限单线协议提供32阶LED电流调节PWM调光信号的占空比决定反馈电压
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