The application of cxle8339 has built-in high-precision sampling and compensation circuit, which enables the circuit to achieve constant current accuracy within ?3%, and can realize the self-adaptive output current to inductance and output voltage, so as to achieve excellent linear adjustment rate and load adjustment rate cxle8339 has integrated 500V power MOSFET internally, without secondary feedback circuit, Without compensation circuit and precise and stable adaptive technology, the peripheral structure of the system is very simple, which can realize high-precision constant current control under the condition of small number of peripheral devices and loose parameter range, greatly saving the system cost and volume, and ensuring the consistency of LED lamp parameters in mass production cxle8339 It has rich protection functions: output open short circuit protection
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[ CXLE8339 ]"
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
CXLE8339是一款高精度的非隔离降压型LED控制器，适用于85V～264V单电压范围的小功率非隔离
降压型LED照明,应用CXLE8339内置了高精度的采样、补偿电路，使得电路能够达到±3%以内的恒流精
度，并且能够实现 输出电流对电感与输出电压的自适应，从而取得优异的线型调整率和负载调整率
CXLE8339内部集成了500V功率 MOSFET，无需次级反馈电路,也无需补偿电路，加之精准稳定的
自适应技术，使得系统外围结构十分简单，可在外围器件数量少，参数范围宽松的条件下实现高精
度恒 流控制，极大地节约了系统成本和体积，并且能够 确保在批量生产时 LED 灯具参数的一致性
CXLE8339 具有丰富的保护功能：输出开短路保护、采样电阻开短路保护、欠压保护、输出过压保护、
过温保护等
二.产品特点
· 采样电阻开短路保护
· 输出过压保护
· 欠压保护
· 过温保护
· 简洁的系统拓补，外围器件极少
· 内部集成 500V 功率管
· ±3%以内的系统恒流精度
· 芯片超低工作电流
· 无需辅助供电电路
· 电感电流连续模式
· 宽输入电压
· 输出短路保护
三.应用范围
LED 蜡烛灯
LED 球泡灯
其它 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
| 高效非隔离降压型恒流LED驱动芯片(Non-isolated Buck Offline LED Driver) | ||||||
| Part No. | Features | Mode | VIN | Current Accu. | Rdson(ohm) | Package |
| CXLE8337 | Non-isolated Buck Offline LED Driver | PWM | 85~264V(AC) | ±3% | 16 | SOP8 |
| CXLE8338S | Non-isolated Buck Offline LED Driver | PWM | 85~264V(AC) | ±3% | 8 | SOP8 |
| CXLE8338D | Non-isolated Buck Offline LED Driver | PWM | 85~264V(AC) | ±3% | 5 | DIP8 |
| CXLE8338R | Non-isolated Buck Offline LED Driver | PWM | 85~264V(AC) | ±3% | 5 | SOP8 |
| CXLE8339 | Non-isolated Buck Offline LED Driver | PWM | 85~265V(AC) | ±4% | 5 | SOP8 |
| CXLE8341 | Non-isolated Buck Offline LED Driver | PWM | 85~264V(AC) | ±3% | 4 | DIP8 |
| CXLE8342S | Non-isolated Buck Offline LED Driver | PWM | 85~264V(AC) | ±3% | 8 | SOP8 |
| CXLE8342R | Non-isolated Buck Offline LED Driver | PWM | 85~264V(AC) | ±3% | 5 | SOP8 |
| CXLE8342D | Non-isolated Buck Offline LED Driver | PWM | 85~264V(AC) | ±3% | 5 | DIP8 |
| CXLE8342C | Non-isolated Buck Offline LED Driver | PWM | 85~264V(AC) | ±3% | 3 | DIP8 |
