Cxle8615 / cxle8616 is a high efficiency, stable and reliable high brightness LED constant current drive control chip, with high-precision comparator, fixed off time control circuit, constant current drive circuit, etc. it is especially suitable for constant current drive of high-power and multiple high brightness LED light strings. Cxle8615 / cxle8616 adopts the peak current control mode with fixed off time, and its working frequency can reach up to 1MHz, which can reduce the volume of external inductance and filter capacitance, improve efficiency and save PCB area. Turn off time can be adjusted by external capacitance, and working frequency can also be adjusted according to user requirements. Add PWM signal at en end to adjust the brightness of LED lamp.
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[ CXLE8615/CXLE8616 ]"
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
CXLE8615 CXLE8616是一款高效率，稳定可靠的高亮度LED灯恒流驱动控制芯片，内置高精度比较器，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灯串的恒流驱动。 CXLE8615 CXLE8616采用固定关断时间的峰值电流控制方式，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，工作频率也可根据用户要求进行调节。在EN端加PWM信号，可调节LED灯的亮度。
CXLE8615 CXLE8616通过调节外置电流检测电阻的阻值来设置流过LED灯的电流，支持外加电压线性
调光，流过LED灯的电流可从几十毫安到2.5安培变化。
CXLE8615 CXLE8616采用ESOP8封装，散热片内置接SW脚。
二.产品特点
◆ 内置100V功率管
◆ 宽输入电压范围：5V~100V
◆ 高效率：可高达92%
◆ 最大工作频率：1MHz
◆ 峰值电流采样电压：250mV
◆ 亮度可调：EN端的PWM调光和DIM端的线性调光
◆ 关断时间可调
◆ 内置电流采样前沿消隐电路
三.应用范围
◆ 平板显示器LED背光灯
◆ 自行车灯
◆ LED射灯
◆ 强光手电筒
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
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LED驱动 > 降压恒流 |
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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 |
|
92% |
ESOP8 |
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|
6-100v |
低于输入 |
3A |
95 |
sot23-6 |
可做足3A |
|
|
2.5-100V |
低于输入电压 |
几十毫安到 2.5A |
90% |
SOT23-6 |
降压恒流 |
|
|
5.5-36V |
低于输入电压 |
800mA |
95% |
SOP-8 |
降压恒流 |
|
|
5.5-36V |
低于输入电压 |
3A |
95% |
SOT23-6 |
降压恒流 |
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