Cxle8690 is a high efficiency, boost high brightness LED constant current driver chip. Three functions are integrated inside: full light, dark light and explosion flash. The mode switching among the three functions can be realized through the on-off of the power switch. No additional MCU or other control IC is required. Cxle8690 sets the output current through the external resistance, and the maximum current can reach 750ma. Cxle8690 adopts the peak current control mode with fixed frequency, and its working frequency is 1MHz, which can reduce the volume of external inductance and filter capacitance, improve efficiency and save PCB area. 95 MV feedback voltage makes the loss of RS resistor very small, so it has higher efficiency. A 2a, 100m Ω NMOS switch is built in the chip to ensure high efficiency during heavy load
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[ CXLE8690 ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）
一.产品概述
CXLE8690是一款高效率，升压型高亮度LED灯恒流驱动芯片。内部集成了三功能：
全亮、暗亮、爆闪。通过电源开关的通断即可实现三功能之间的模式切换。无需外加MCU或其他控制IC。CXLE8690通过外接电阻设置输出电流，最大电流可达750mA。CXLE8690采用固定频率的峰值电流控制方式，其工作频率为1MHz，可使外部电感和滤波电容体积减小，效率提高，节省PCB面积。95mv的反馈电压使得RS电阻上的损耗很小，从而具有更高的效率。芯片内置2A，100mΩNMOS开关从而保证重载时的高效率。CXLE8690采用SOT23-6封。
二.产品特点
3种循环模式：全亮、暗亮、爆闪。
工作电压：0.9-4.2V
高效率：可达90%
工作频率：1MHz
最大输出电流：750mA
采样电阻反馈电压：95mV
内置100mΩMOS
过压保护
SOT23-6封装
三.应用范围
LED手电筒
其他LED灯
四.技术规格书（产品PDF)
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！
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
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电压升压恒流驱动系列 |
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型号 |
输入电压 |
输出电压 |
开关频率 |
最大输出 |
电压 |
封装 |
|
0.9V~5V |
2.7V~5V |
300K |
0.5A |
2.7V/3V/3.3V/3.6V/5V, |
SOT89-3, SOT23-3/5 |
|
|
0.9V~4V |
2.2V~5V |
300K |
0.3A |
2.2V/2.8V/3V/3.3V/3.6V |
SOT89-3,SOT23-3/5 |
|
|
0.9V~4V |
0.9V~4.2V |
1M |
0.85A |
升压恒流 |
SOT23-6 |
|
|
0.9V~4V |
0.9V~4.2V |
1M |
0.75A |
升压恒流3功能 |
SOT23-6 |
|
|
0.9V~4V |
0.9V~4.2V |
1M |
0.75A |
升压恒流5功能 |
SOT23-6 |
|
|
0.9V~4V |
5V |
300K |
2A |
升压恒压 |
SOT23-6 |
|
|
9V~32V |
36~85V |
300K |
30W |
内置稳压,外置MOS |
ESOP-8 |
|
|
9V~32V |
36~85V |
300K |
12W |
内置100VMOS管内置稳压 |
ESOP-8 |
|
|
9V~32V |
36~48V |
300K |
24W |
内置60VMOS管内置稳压 |
ESOP-14 |
|
|
9V~32V |
36~48V |
300K |
36W |
外置稳压,外置MOS |
ESOP-8 |
|
