CXLE8132是一种升压型DC/DC转换器，设计用于从锂离子电池串联驱动多达六个LED。LED的串联提供相同的LED电流，并消除对镇流器电阻器的需求。这些器件集成了竞争设备外部所需的肖特基二极管。其他功能包括LED断开时的输出电压限制、单脚关机和调光控制。CXLE8132具有内部软启动。CXLE8132开关频率为1.2兆赫，允许使用微型外部组件。恒频开关导致低输入噪声和小输出电容。4、6或8个LED应用只需要0.22μF
固有匹配LED电流
从3.6V电源驱动多达8个LED
不需要外部肖特基二极管
1.2兆赫开关频率
自动软启动
开放式LED保护
高效：81%
只需要0.22mF输出电容器
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[ CXLE8132 ]
目录
产品概述 返回TOP
The CXLE8132 IS step-up DC/DC converters designed to drive up to six LEDs in series from a Li-Ion cell.Series connection of the LEDs provides identical LED currents and eliminates the need for ballast resistors.These devices integrate the Schottky diode required exter-nally on competing devices. Additional features include output voltage limiting when LEDs are disconnected, one-pin shutdown and dimming control. The CXLE8132 has internal soft-start.
The CXLE8132 switches at 1.2MHz, allowing the use of tiny external components. Constant frequency switching results in low input noise and a small output capacitor.Just 0.22μF is required for 4-, 6- or 8-LED applications.
The CXLE8132 is available in low profile(1mm)6-lead
产品特点 返回TOP
Inherently Matched LED Current
Drives Up to 8 LEDs from a 3.6V Supply
No External Schottky Diode Required
1.2MHz Switching Frequency
Automatic Soft-Start
Open LED Protection
High Efficiency: 81%
Requires Only 0.22mF Output Capacitor
Low Profile (1mm) SOT-23 Packaging
应用范围 返回TOP
Cellular Phones
PDAs, Handheld Computers
Digital Cameras
MP3 Players
GPS Receivers
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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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 |
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|
PWM |
2.5V-10V |
29V |
0.1V |
320mA |
85% |
0.1uA |
1.3MHz |
PWM |
SOT-25 |
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|
PWM |
2.2V-6.0V |
17V |
0.25V |
400mA |
82% |
3mA |
1.4MHz |
PWM |
100Hz-1KHz |
SOT-26 |
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|
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 |
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PWM |
2.7V-6.0V |
37V |
0.3V |
900mA |
90% |
0.28mA |
0.9MHz |
PWM |
100Hz-200KHz |
SOT-26 |
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|
PWM |
2.5V-6.0V |
28V |
0.1V/0.25V /0.3V |
1.5A |
90% |
0.1uA |
1.2MHz |
PWM |
20KHz-1MHz |
SOT-26 |
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|
PWM |
3.0V-25V |
28V |
0.2V |
2A |
90% |
1uA |
1.2MHz |
PWM |
20KHz-1MHz |
SOT-26 |
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|
PWM |
2.7V-6.5V |
22V |
0.2V |
2.8A |
95% |
5uA |
1MHz |
PWM |
SOT-26 |
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|
PWM |
3.0V-6.0V |
24V |
0.2V |
2.5A |
88% |
1uA |
1.2MHz |
PWM |
10KHz-100KHz |
SOT-26 |
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|
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 |
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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 |
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PWM |
10V-35V |
200V |
0.2V |
扩流 |
400uA |
200KHz |
PWM |
SOP-8 |
|||
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PWM |
3.6V-26V |
32V |
0.22V |
2A |
92% |
400KHz |
PWM |
SOP-8 |
|||
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PWM |
3.6V-26V |
60V |
0.22V |
2A |
92% |
400KHz |
PWM |
SOP-8 |
|||
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PWM |
5.0V-45V |
60V |
0.22V |
2A |
93% |
400KHz |
PWM |
SOP-8 |
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PWM |
3.6V-36V |
60V |
0.22V |
4A |
94% |
180KHz |
PWM |
TO252-5L |
|||
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PWM |
5.0V-36V |
60V |
0.22V |
5A |
94% |
180KHz |
PWM |
TO263-5L |
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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 |
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PWM |
2.7V-16V |
36V |
0.2V |
340mA |
81% |
3.2uA |
1.2MHz |
PWM |
SOT-26 |
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