Cxle8287 is a continuous current mode buck constant current driver chip. When the input voltage is higher than the LED voltage, it can be effectively used to drive one or more LEDs in series. Cxle8287 input voltage range from 6V to 40V, output current adjustable, up to 1a. Cxle8287 built in power switch and a high-end current sampling power supply
The external resistance is used to set the average current of LED, and the analog dimming and PWM dimming are received through Vset pin. The soft start time can be extended by adding an external capacitance between the Vset pin and the ground. When the voltage of Vset pin is lower than 0.3V, the power switch is cut off and enters the standby state of very low working current
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[ CXLE8287 ]"
目录
7.相关产品
产品概述 返回TOP
CXLE8287是一款连续电流模式的降压恒流驱动芯片。在输入电压高于LED电压时，可以有效地用于驱动一颗或多颗串联LED。 CXLE8287输入电压范围从6V到40V，输出电流可调，最大可达1A。CXLE8287内置功率开关和一个高端电流采样电
路，使用外部电阻设置LED平均电流，并通过VSET引脚接受模拟调光和PWM调光。 软启动的时间可以通过在VSET脚与地之间增加一个外部电容来延长。当VSET脚的电压低于0.3V时，功率开关截止， 进入极低工作电流的待机状态。
采用SOT89-5封装。
产品特点 返回TOP
*极少的外部元器件
*宽输入电压范围：从 6V ~ 40V
*高达 1A 的恒电流输出
*单一管脚实现模拟调光和 PWM 调光
*效率高达97.5%
*最大 1MHz 开关频率
* LED 开路保护
*2% 的输出电流精度
应用范围 返回TOP
*低压LED射灯代替卤素灯
*车载LED灯
*低压工业用灯
*LED 备用灯
*LED 信号灯
*LED 舞台灯
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。。。。。
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LED驱动芯片 |
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型号 |
输入电压 |
最大输出电流 |
高效率 |
最大工作频率 |
封装 |
|
12V-85V |
850MA |
92% |
1MHz |
ESOP-8/PP |
|
|
0.8~5.5V |
0.3W-7W |
90% |
1MHz |
SOT-23-6L |
|
|
3~24V |
90% |
1.20MHz |
SOT23-6 |
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|
2.6V~7.0V |
100mA |
90% |
1.20MHz |
SOP8 |
|
|
6V~40V， |
1A |
97.50% |
1MH |
SOT89-5 |
|
|
2.5V ~5V |
1-5W |
92% |
SOT23-6 |
||
|
2.5V ~ 6V |
1A |
90% |
SOT23-6 |
||
|
7.2V~19V |
20W |
90% |
SOT23-6 |
||
|
1.8－3.6V |
3W |
90% |
1MHZ |
SOT23-6 |
|
|
6-40V |
1A |
97% |
1MHz |
SOT89-5 |
|
|
2.7-6V |
3.0Ａ |
97% |
1MHz |
SOT-89-5 |
|
|
8V~600V |
1A |
90% |
1MHz |
SOP8 |
|
|
8V~32V |
1A |
97% |
1MHz |
SOT89-5L |
|
|
2.7V~4.8V |
1W,3W |
97% |
全亮，25%亮度，暴闪 |
SOT23-6 |
|
|
2.8V~5V |
250mA |
97% |
1.20MHz |
SOT23 |
|
|
2.5V~24V |
10MA~1安 |
90% |
2.5MHz |
SOT23-6 |
|
|
7.2V~19V |
20W |
97% |
1MHz |
SOT23-6 |
|
|
2.7V~4.8V |
1W,3W |
90% |
1MHz |
SOT23-6 |
|
|
ON/OFF模式3段调光模式无级调光模式 |
SOP-8/SOT23-6 |
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