CXLE8154是一个高频升压型DC/DC转换器，采用小型6引线SOT-23封装，专门设计用于驱动恒流白光LED。该设备可以从一个锂离子电池串联驱动多达4个LED。CXLE8154非常适合需要低电流和高效率的LCD面板，以及用于手机背光的白色LED应用。
·2.5 V至6 V输入电压范围
·400毫安内部开关电流
·高达1MHz的开关频率
·70mA典型空载静态电流
·0.1毫安典型关机电流
·内部软启动
·效率高达87%
·工作输出电容降到0.1mF
·包括过电压保护
·提供无铅和绿色设备（RoHS
合规）
[ CXLE8154 ]
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产品概述 返回TOP
产品特点 返回TOP
· 2.5 V to 6V Input Voltage Range
· 400mA Internal Switch Current
· Up to 1MHz Switching Frequency
· 70mA Typical No Load Quiescent Current
· 0.1mA Typical Shutdown Current
· Internal Soft-Start
· Up to 87% Efficiency
· Operating Output Capacitor Down to 0.1mF
· Over Voltage Protection Included
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· White LED Display Backlighting
· Cell Phone and Smart Phone
· PDA, PMP, MP3
· Digital Camera
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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Lighting and Display Product > White LED Driver |
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Part_No |
Topology |
Archi tecture |
Input Voltage (V) |
Adj. Output Voltage V |
No. of LEDs |
LED Current (Max) (A) |
Switch Current Limit (A) |
Current Sense Voltage (typ)(V) |
Switching Frequency (kHz) |
Dimming Control |
Package |
|
|
min |
max |
max |
||||||||||
|
Boost |
CM |
2.7 |
6 |
32 |
8 |
0.03 |
0.9 |
0.25 |
1000 |
Analog |
SOT23-6 |
|
|
Boost |
VM |
2.5 |
6 |
19 |
4 |
0.03 |
0.4 |
0.25 |
1000 |
Analog PWM |
SOT23-6 |
|
|
Boost |
CM |
2.7 |
21 |
30 |
8 |
0.6 |
3.5 |
0.5 |
1200 |
Analog |
DFN3x3-10 |
|
|
Charge Pump |
- |
2.8 |
4.5 |
- |
4 |
0.03 |
- |
- |
1000 |
Analog PWM Digital |
QFN4x4-16 |
|
|
Charge Pump |
- |
2.8 |
4.5 |
- |
6 |
0.03 |
- |
- |
1000 |
Analog PWM Digital |
QFN4x4-16 |
|
|
Charge Pump |
- |
2.8 |
4.5 |
- |
4 |
0.03 |
- |
- |
1000 |
Analog PWM Digital |
QFN3x3-16 |
|
|
Boost |
CM |
2.5 |
6 |
24 |
6 |
0.03 |
1.2 |
0.1 |
1000 |
Analog PWM |
SOT23-6 |
|
|
Boost |
CM |
2.5 |
6 |
39 |
10 |
0.03 |
0.9 |
0.3 |
1000 |
Analog PWM |
SOT23-6 |
|
|
Boost |
CM |
2.5 |
6 |
24 |
6 |
0.03 |
1.2 |
0.2 |
1000 |
Analog PWM |
SOT23-6 |
|
|
Boost |
CM |
2.5 |
6 |
40 |
10 |
0.03 |
1.5 |
0.2 |
600 |
Analog PWM |
TDFN2x2-6 |
|
|
Boost |
CM |
2.5 |
6 |
24 |
6 |
0.03 |
2 |
0.2 |
1500 |
Analog PWM |
SOT23-6 |
|
|
Buck |
CM |
3 |
5.5 |
- |
SOT23-5 |
|||||||
|
Boost |
CM |
6 |
24 |
65 |
17 |
0.18per string |
3.3 |
0.5 |
200 ~ 900 |
External PWM Dimming/I2C |
TDFN5x5-16 |
|
|
Boost |
CM |
2.7 |
6 |
40 |
10 |
0.03 |
1.5 |
0.2 |
600 |
Analog PWM |
TDFN2x2-6 |
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下一篇▶:CXLE8155高功率高效率的升压转换器集成了30V场效应管LCD面板背光应用30V输出电压8个大功率LED串联3.5A电感电流限制LED串并联连接
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