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首页 > Products > Led Driver > LED Driver Chip > Disjunctor Dimming and Toning >Cxle8261 is a high-performance two-stage combined constant current control chip applied to medium and high power LED lighting. Single chip can realize the combination control of Boost PFC
Cxle8261 is a high-performance two-stage combined constant current control chip applied to medium and high power LED lighting. Single chip can realize the combination control of Boost PFC

Cxle8261 is a high-performance two-stage combined constant current control chip applied to medium and high power LED lighting. Single chip can realize the combination control of Boost PFC and non isolated buck constant current, as well as the combination control of Boost PFC and isolated flyback constant current. It can achieve high precision, high PF constant current output and no stroboscopic lighting in the full voltage range.
The intelligent chip power supply circuit of cxle8261 internal integrated patent can realize fast start and lower chip power loss. Chip controlled two-stage switching power supply works in critical current conduction mode and quasi resonant mode, so as to achieve higher conversion efficiency and lower electromagnetic interference (EMI). Thanks to a number of patent technologies integrated internally,

Cxle8261 is a high-performance two-stage combined constant current control chip applied to medium and high power LED lighting. Single chip can realize the combination control of Boost PFC
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   产品概述 返回TOPc3r嘉泰姆


CXLE8261是应用于中大功率LED照明的高性能双级组合恒流控制芯片。单芯片可实现 升压PFC和非隔离BUCK恒流组合控制,也可实现升压PFC和隔离FLYBACK恒流组 合控制。可以在全电压范围内实现高精度,高PF恒流输出,并实现无频闪照明。 

CXLE8261内部集成专利的智能芯片供电电路可实现快速启动和更低的芯片供电损耗。 芯片控制两级开关电源都工作在临界电流导通和准谐振模式,从而实现更高的转换效 率和更低的电磁干扰(EMI)。得益于内部集成的多项专利技术,

CXLE8261在实际应用 中,BOOST升压级的功率电感可采用单绕组,FLYBACK级可采用双绕组变压器,后 级为BUCK架构时则可采用单绕组电感,大大简化储能元件的设计和系统成本。 对于后级开关电源为FLYBACK拓扑的应用,芯片采用了先进的原边采样恒流算法可 实现优异的线调整率和负载调整率(<+/-1.5%),同时省去了次边反馈元件。极大简化 了系统外围元件和成本。

   产品特点 返回TOPc3r嘉泰姆


1. 宽电压输入 85VAC~265VAC,可用于隔离或非隔离照明应用 c3r嘉泰姆

2. 同比同类型芯片应用外围设计和元件更简单 c3r嘉泰姆

3. PF>95%, THD<10% c3r嘉泰姆

4. 无低频输出电流纹波实现无频闪 c3r嘉泰姆

5. 双级临界电流和准谐振工作模式实现高效率 c3r嘉泰姆

6. 恒流精度<+/-3% 7.<0.5s 的快速启动时间 c3r嘉泰姆

8. 优异的线调整率和负载调整率 c3r嘉泰姆

9. 逐周期峰值电流限制 c3r嘉泰姆

10. LED 负载开路和短路保护 c3r嘉泰姆

11. BOOST 升压输出过压保护 c3r嘉泰姆

12. BOOST 升压级采用动态跟随输入电压模式可实现更平衡的全电压效率 c3r嘉泰姆

13. 固有的 X-CAP 放电功能c3r嘉泰姆

   应用范围 返回TOPc3r嘉泰姆


1. LED 照明 c3r嘉泰姆

2. 筒灯,日光灯,PAR 灯,球泡灯等c3r嘉泰姆

   技术规格书(产品PDF) 返回TOP c3r嘉泰姆


     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!c3r嘉泰姆

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