The PWM / PFM automatic switching control circuit is used to achieve adjustable duty cycle, which has the characteristics of low ripple, high efficiency and large output current in the full input voltage range (2.0-6v). Cxle8837 has built-in power MOSFET, which uses over-voltage, over-current, overheating and many other protection circuits. When the control value is exceeded, it will automatically disconnect to protect the chip. This product combines the characteristics of micro package and low current consumption, and is most suitable for internal use of power supply of mobile devices
-
[ CXLE8837 ]"
目录
产品概述 返回TOP
CXLE8837是一款由基准电压源、振荡电路、比较器、 PWM/PFM控制电路等构成的CMOS降压恒流驱动器。利用PWM/PFM自动切换控制电路达到可调占空比，具有全输入电压范围（2.0－6V）内的低纹波、高效率和大输出电流 等特点。 CXLE8837内置功率MOSFET，使用过压、过流、过热等诸多保护电路，在超过控制值时会自动断开，以保护芯片。 本产品结合了微型封装和低消耗电流等特点，最适合在移动设备的电源内部使用。
产品特点 返回TOP
高效率 最大效率可达 92％
大的输出电流950mA
甚小静态电流200μA
低压操作可达100％占空比
PWM/PFM自动切换占空比自动可调以保持很大负载范围内的高效率、低纹波
应用范围 返回TOP
LED 驱动
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......
|
降压型LED射灯驱动IC |
||||||||
|
型号 |
工作电压范围 |
输出电流 |
输出电 流精度 |
线性调 整率 |
效率 |
工作频率 |
调光功能 |
封装 |
|
6V-40V |
1.2A |
3% |
1.50% |
98% |
1MHz(max) |
PWM调光 |
ESOP8 |
|
|
6V-40V |
1.2A |
3% |
1.50% |
98% |
1MHz(max) |
PWM调光 |
SOT-26 |
|
|
6V-60V |
1.2A |
2% |
94% |
1.1MHz |
PWM/模拟 调光 |
SOT-89-5 |
||
|
2V-6.5V |
0.95A |
10% |
0.45% |
92% |
1.4 MHz |
PWM调光 |
SOT-25 |
|
|
2.5V-5.5V |
0.7A |
3% |
93% |
1.4MHz |
PWM调光 |
SOT-25 |
||
|
5.5V-36V |
扩流2.5A |
1% |
96% |
1MHz |
PWM调光 |
SOT-26 |
||
|
4V--28V |
扩流25W |
1% |
96% |
2MHz |
PWM/模拟 调光 |
SOT-26 |
||
|
2.5V-100V |
扩流2.5A |
1% |
90% |
1MHz |
PWM调光 |
SOT-26 |
||
|
5-100V |
1.5A |
1% |
92% |
1MHz |
PWM/模拟 调光 |
ESOP8 |
||
|
5-100V |
2.5A |
1% |
92% |
1MHz |
PWM/模拟 调光 |
ESOP8 |
||
|
6V-100V |
扩流3A |
3% |
95% |
200KHz |
PWM调光 |
SOT-26 |
||
|
8V-45V |
3A |
3% |
95% |
220KHz |
ESOP8 |
|||
|
8V-40V |
4A |
3% |
95% |
220KHz |
PWM调光 |
TO252-5L |
||
|
8V-40V |
5A |
3% |
95% |
220KHz |
TO263-5L |
|||
|
5V-36V |
1.5A |
2% |
96% |
380KHz |
PWM调光 |
SOP-8 |
||
|
4.5V-45V |
2A |
2% |
83% |
150KHz |
PWM调光 |
ESOP8 |
||
|
8V-45V |
3A |
2% |
89% |
150KHz |
ESOP8 |
|||
|
8V-40V |
3A |
2% |
89% |
180KHz |
SOP8 |
|||
|
8V-40V |
3.5A |
2% |
87% |
180KHz |
PWM调光 |
ESOP8 |
||
|
8V-40V |
2A |
2% |
89% |
110KHz |
SOP8 |
|||
|
7V-40V |
2.5A |
2% |
89% |
250KHz |
ESOP8 |
|||
|
8V-40V |
5A |
2% |
86% |
150KHz |
TO263-5L |
|||
|
6V-40V |
1.2A |
3% |
1.50% |
98% |
1MHz(max) |
PWM调光 |
SOT89-5 |
|
|
6V-34V |
1.0A |
5% |
1.50% |
97% |
1MHz(max) |
PWM/模拟 调光 |
SOT89-5 |
|
