CXLE8169是一款专为白光LED设计的升压型恒流驱动器. 通过内置40V功率管，使得CXLE8169A能驱动单串10LEDs串连负载，从而保证所有LED电流相同。CXLE8169A工作在1.2MHz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。如典型应用电路所示，CXLE8169A回馈电压为200/mV，通过回馈电阻可以设置LED最大输出电流。在工作过程中,EN引脚可以以两种调光方式对CXLE8169A的工作电流进行控制。一是PWM调光方式，通过外加在EN端8KHz 或更高频率的PWM调光信号，PWM调光信号的占空比决定反馈电压的大小。二是数字调光方式，通过在EN端集成一个单线接口，该单线接口可以以32阶调节反馈电压的大小。不管工作在PWM模式还是数字调光模式，CXLE8169A都不会在输出电容上产生音频噪声。其内置38V过压保护功能为LED提供开路保护
[ CXLE8169 ]
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产品概述 返回TOP
产品特点 返回TOP
‧2.7V～5.5V输入电压
‧38V过压保护
‧集成40VNMOS功率管
‧内置软启动
‧单线协议提供32阶LED电流调节
‧PWM调光频率范围：8KHz~300KHz
‧过温保护
‧输入欠压锁定
‧2mm×2mm TDFN-6封装
‧符合RoHS规范及Pb-Free
2.7V to 5.5 V Input Voltage Range
38V Output Over Voltage Protection
Integrated 40V N-MOSFET
Internal Soft-Start
Single-Wire Serial Pulse Interface to Set LED
Current with 32-Step Scale
External PWM Dimming with 8kHz to 300kHz
Frequency Range
Over Thermal Protection
VIN Under Voltage Lockout
Available in 2mm×2mm TDFN-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
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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:CXLE8168 PWM和Analog两种调光宽输入升降压白光LED驱动器宽输入电压范围为驱动白光LED设计的恒流升压转换器6～25V输入电源可编程的软启动
下一篇▶: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
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