Cxle8608 is a high efficiency and high precision boost high power LED constant current driver and control chip. Cxle8608 has built-in high-precision error amplifier, fixed turn-off time control circuit, constant current drive circuit, etc. it is especially suitable for the series constant current drive of high-power and multiple high brightness LED lights. Cxle8608 with fixed off
In the control mode, the working frequency can reach up to 1MHz, which can reduce the volume of external inductor and filter capacitor, improve efficiency and save PCB area. Turn off time can be adjusted by external capacitance, and working frequency can be changed according to user's requirements. By adjusting the external current sampling resistance, cxle8608 can control the driving current of high brightness LED lamp and make the brightness of LED lamp reach the expected constant brightness
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[ CXLE8608 ]"
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
CXLE8608是一款高效率、高精度的升压型大功率LED灯恒流驱动控制芯片。CXLE8608内置高精度误差放大器，固定关断时间控制电路，恒流驱动电路等，特别适合大功率、多个高亮度LED灯的串恒流驱动。CXLE8608采用固定关断时间的控制方式，其工作频率最高可达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。关断时间可通过外部电容进行调节，工作频率可根据用户要求而改变。CXLE8608通过调节外置的电流采样电阻，能控制高亮度LED灯的驱动电流，使LED灯亮度达到预期恒定亮度。在EN端加PWM信号，还可以进行LED灯调光。
CXLE8608采用SOP8封装。
二.产品特点
宽输入电压范围：3.6V~100V
高效率：可高达95%
最大工作频率：1MHz
CS限流保护电压：250mV
FB电流采样电压：250mV
芯片供电欠压保护：2.5V
关断时间可调
外置频率补偿脚
三.应用范围
LED灯杯
电池供电的LED灯串
平板显示LED背光
恒流充电器控制
大功率LED照明
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
| 升压恒流LED驱动 | ||||||
| 产品型号 | 输入电压 | 输出电压 | 输出电流 | 工作效率 | 产品封装 | 备注 |
| CXLE8607 | 2.5-100V | 升压 | ≦500mA | 90% | SOP8 | PFM升压恒压型，最高1MHz工作频率，适合宽电压输入的升压应用 |
| CXLE8608 | 3.6-100V | 高于输入电压 | 2A | 95% | SOP-8 | 升压恒流 |
