CXLE8122是一种升压型DC/DC转换器，专门设计用于驱动高达5系列的白色恒流LED。LED的串联提供相同的LED电流使亮度均匀，不需要镇流器电阻器。CXLE8122开关频率为1.4MHz，允许使用微型外部组件。低的0.25V反馈电压可将电流设置电阻器的功率损耗降至最低，从而实现高效率。OVP引脚监测输出电压，并在led打开时关闭转换器。
-
[ CXLE8122 ]"
目录
产品概述 返回TOP
The CXLE8122 is a step-up DC/DC converter specifically designed to drive up to 5 series white
LEDs with constant current. Series connection of the LEDs provides identical LED currents
resulting in uniform brightness and eliminates the need for ballast resistors. The CXLE8122
switches at 1.4MHz, allowing the use of tiny external components. A low 0.25V feedback voltage minimizes power loss in the current setting resistor for high efficiency. The OVP pin monitors the output voltage and turns off the converter whenever the LEDs are open.
The CXLE8122 is available in low profile SOT-23-6 package.
产品特点 返回TOP
Inherently Matched LED Current
High Efficiency:82%
Drives Up to Five LEDs from 2.2V Supply
17V Over Voltage Protection
Fast 1.4MHz Switching Frequency
Requires Only
1μF Output Capacitors
SOT-23-6 Packag
应用范围 返回TOP
Communication equipment
White LED Backlight Display for PDA
Pocket PC
Handheld Devices
Cellular Phones
White LED display backlighting
技术规格书（产品PDF) 返回TOP
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品.......
|
白灯背光驱动IC>>>小屏白灯背光驱动IC |
|||||||||||
|
型号 |
工作模式 |
工作电 压范围 |
过压保 护电压 |
反馈电压 |
开关电 流限制 |
静态电流 |
工作频率 |
调光形式 |
调光频 率范围 |
封装 |
|
|
PWM |
2.5V-10V |
29V |
0.1V |
320mA |
85% |
0.1uA |
1.3MHz |
PWM |
SOT-25 |
||
|
PWM |
2.2V-6.0V |
17V |
0.25V |
400mA |
82% |
3mA |
1.4MHz |
PWM |
100Hz-1KHz |
SOT-26 |
|
|
白灯背光驱动IC>>>大中屏白灯背光驱动IC |
|||||||||||
|
型号 |
工作模式 |
工作电 压范围 |
过压保 护电压 |
反馈电压 |
开关电 流限制 |
静态电流 |
工作频率 |
调光形式 |
调光频 率范围 |
封装 |
|
|
PWM |
2.2V-6.0V |
17V |
0.25V |
700mA |
82% |
3mA |
1.4MHz |
PWM |
100Hz-1KHz |
SOT-26 |
|
|
PWM |
2.5V-6.0V |
23V |
0.25V |
1.0A |
88% |
0.4mA |
1.0MHz |
PWM |
100Hz-10KHz |
SOT-26 |
|
|
PWM |
2.5V-6.0V |
30V |
0.104V |
400mA |
87% |
0.2mA |
1.2MHz |
PWM |
小于1KHz |
SOT-26 |
|
|
PWM |
2.7V-6.0V |
38V |
0.2V |
1A |
91% |
5uA |
0.8MHz |
PWM |
SOT-26 |
||
|
PWM |
2.7V-6.0V |
37V |
0.3V |
900mA |
90% |
0.28mA |
0.9MHz |
PWM |
100Hz-200KHz |
SOT-26 |
|
|
PWM |
2.5V-6.0V |
28V |
0.1V/0.25V /0.3V |
1.5A |
90% |
0.1uA |
1.2MHz |
PWM |
20KHz-1MHz |
SOT-26 |
|
|
PWM |
3.0V-25V |
28V |
0.2V |
2A |
90% |
1uA |
1.2MHz |
PWM |
20KHz-1MHz |
SOT-26 |
|
|
PWM |
2.7V-6.5V |
22V |
0.2V |
2.8A |
95% |
5uA |
1MHz |
PWM |
SOT-26 |
||
|
PWM |
3.0V-6.0V |
24V |
0.2V |
2.5A |
88% |
1uA |
1.2MHz |
PWM |
10KHz-100KHz |
SOT-26 |
|
|
白灯背光驱动IC>>>超大屏白灯背光驱动IC |
|||||||||||
|
型号 |
工作模式 |
工作电 压范围 |
过压保 护电压 |
反馈电压 |
开关电 流限制 |
静态电流 |
工作频率 |
调光形式 |
调光频 率范围 |
封装 |
|
|
PWM |
2.2V-6V |
26V |
0.2V |
3A |
100uA |
800KHz |
PWM |
SOP-8 |
|||
|
PWM |
2.2V-6V |
27V |
0.2V |
3A |
100uA |
800KHz |
PWM |
DFN3*3-8 |
|||
|
PWM |
10V-35V |
200V |
0.2V |
扩流 |
400uA |
200KHz |
PWM |
SOP-8 |
|||
|
PWM |
3.6V-26V |
32V |
0.22V |
2A |
92% |
400KHz |
PWM |
SOP-8 |
|||
|
PWM |
3.6V-26V |
60V |
0.22V |
2A |
92% |
400KHz |
PWM |
SOP-8 |
|||
|
PWM |
5.0V-45V |
60V |
0.22V |
2A |
93% |
400KHz |
PWM |
SOP-8 |
|||
|
PWM |
3.6V-36V |
60V |
0.22V |
4A |
94% |
180KHz |
PWM |
TO252-5L |
|||
|
PWM |
5.0V-36V |
60V |
0.22V |
5A |
94% |
180KHz |
PWM |
TO263-5L |
|||
|
白灯背光驱动IC>>>同步升压白灯背光驱动IC |
|||||||||||
|
型号 |
工作模式 |
工作电 压范围 |
过压 保护电压 |
反馈电压 |
开关 电流限制 |
静态电流 |
工作频率 |
调光形式 |
调光频 率范围 |
封装 |
|
|
PWM |
2.7V-16V |
36V |
0.2V |
340mA |
81% |
3.2uA |
1.2MHz |
PWM |
SOT-26 |
||
