CXLE8167是一款专用于白光LED阵列的高频升压驱动芯片。其内置的0.19Ω功率管和2.0A的电流极限使得CXLE8167能为7~10吋LCD面板提供背光驱动(驱动13并3/4串白光LED阵列)。CXLE8167采用1MHz固定频率电流控制模式升压架构,通过设定外部反馈电阻上电压为200mV,使得CXLE8167既能精确的控制LED输出电流,同时保证了驱动电路高效特性。CXLE8167内置输出过压保护功能,利用SW引脚监测输出电压,当出现LED开路时,IC能自动关断实现保护。同时IC内置多种保护措施,如:软启动,过流保护,过温保护和输入欠压保护。CXLE8167采用薄型TSOT23-5封装,为节约PCB空间和减少BOM表提供最优方案
[ CXLE8167 ]
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产品概述 返回TOP
产品特点 返回TOP
‧ 输入电压范围:2.6V~5.5V
‧ 内置0.19Ω,18V功率开关
‧ 峰值效率达93%
‧ 芯片表面温度低@ILED=180mA(VIN=3.6V)
‧ 1MHz开关频率
‧ 2A电流极限
‧ 内置LED开路保护
‧ 内置软启动功能
‧ 兼容PWM和DC两种调光方式
‧ TSOT23-5封装
‧ 符合RoHS规范及Pb-Free
2.6V to 5.5V Input Range
Internal 0.19, 18V MOSFET Switch
High Efficiency Up to 93%
Lower Surface Temperature at ILED=180mA
1MHz Switching Frequency
2A Current Limit
Open LED Overvoltage Protection
Internal Soft-Start
PWM and DC Dimming Control
Available in TSOT23-5 Package
RoHS Compliant and 100% Lead (Pb)-Free
Halogen-Free
应用范围 返回TOP
‧ 7~10吋LCD面板背光驱动
‧ MID背光驱动
‧ 上网本(Netbook)背光驱动
‧ 便携式多媒体设备
‧ GPS导航系统
7” to 10” LCD Panels
MID Backlighting
Netbook Backlighting
Portable Media Players
GPS Navigation Systems
技术规格书(产品PDF) 返回TOP
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产品封装图 返回TOP
a
电路原理图 返回TOP
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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