CXLE8153A CXLE8153B CXLE8153C是一个电流模式和固定频率升压转换器，带有集成N-FET，可串联驱动多达8个白色LED。串联允许LED电流相同，亮度均匀。它的低导通电阻和反馈电压降低了功率损耗，实现了高效率。快速的1MHz电流模式的脉宽调制操作可用于输入和输出电容器和一个小电感，同时最小化输入电源上的纹波。OVP引脚监测输出电压，如果超过过电压阈值，则停止切换。内部软启动电路消除了启动过程中的涌入电流。CXLE8153A/B/C还集成了欠压锁定、过温保护和电流限制电路。CXLE8153/A/B/C有SOT-23-6软件包
·宽输入电压从2.7伏到6伏
·0.25V参考电压
·固定1MHz开关频率
·效率高达87%
·100Hz至100kHz的脉宽调制亮度控制频率
·开放式LED保护
·欠压闭锁保护
·过温保护
·关机时小于1毫安的静态电流
·SOT-23-6包装
·提供无铅和绿色设备（符合RoHS）
[ CXLE8153 ]
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产品概述 返回TOP
产品特点 返回TOP
· Wide Input Voltage from 2.7V to 6V
· 0.25V Reference Voltage
· Fixed 1MHz Switching Frequency
· High Efficiency up to 87%
· 100Hz to 100kHz PWM Brightness Control Frequency
· Open-LED Protection
· Under-Voltage Lockout Protection
· Over-Temperature Protection
·<1mA Quiescent Current Dduring Shutdown
· SOT-23-6 Packages
· 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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