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首页 > Products > Led Driver > Isolated LED Driver > Isolated PFC >Cxle86171 is a single-stage, source power factor correction, high-precision primary side feedback led constant current control chip. It is suitable for flyback isolation LED constant current power
Cxle86171 is a single-stage, source power factor correction, high-precision primary side feedback led constant current control chip. It is suitable for flyback isolation LED constant current power

Cxle86171 is a single-stage, source power factor correction, high-precision primary side feedback led constant current control chip. It is suitable for flyback isolation LED constant current power supply with 85vac-265vac full range input voltage. CXLE86171 integrated active power factor correction circuit can achieve high power factor and low total harmonic distortion. Due to the critical continuous mode of inductor current, the power MOS transistor is in the zero current on state, the switching loss can be reduced, and the utilization ratio of transformer is also high. Cxle86171 adopts a special current sampling mechanism, which works in the original side feedback mode. Without secondary feedback circuit, it can achieve high-precision output constant current control, save the cost and volume of the system, and improve the reliability of the system. Cxle86171 adopts advanced line voltage and load compensation technology to achieve excellent line voltage regulation and load regulation. The line voltage compensation coefficient can also be flexibly adjusted by external components.

Cxle86171 is a single-stage, source power factor correction, high-precision primary side feedback led constant current control chip. It is suitable for flyback isolation LED constant current power
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1.产品概述       2.产品特点     Tym嘉泰姆

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5.产品封装       6.电路原理图  Tym嘉泰姆

7.相关产品Tym嘉泰姆

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   CXLE86171是一款单级、带有源功率因数校正的高精度原边反馈LED恒流控制芯片, 适用于85Vac-265Vac全范围输入电压的反激式隔离LED恒流电源。CXLE86171 集成有源功率因数校正电路,可以实现很高的功率因数和很低的总谐波失真。由于工作在电感电流临界连续模式,功率MOS管处于零电流开通状态,开关损耗得以减小,同时变压器的利用率也较高。CXLE86171采用专有的电流采样机制,工作于原边反馈模式,无需次级反馈电路,即可实现高精度输出恒流控制,节约了系统成本和体积,提高了系统的可靠性。CXLE86171采用先进的线电压和负载补偿技术,可以达到优异的线电压调整率和负载调整率。线电压补偿系数还可以通过外部元件灵活调整。CXLE86171内置多重保护功能来加强系统可靠性,包括LED 开路保护、

LED短路保护、芯片供电过压保护、欠压保护、电流采样电阻开路保护和逐周期限流等。所有的保护都具有自动重启功能。Tym嘉泰姆

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单级、有源功率因数校正,高PF 值,低THDTym嘉泰姆

原边反馈恒流控制,无需次级反馈电路Tym嘉泰姆

±5% LED 输出电流精度Tym嘉泰姆

优异的线电压调整率和负载调整率Tym嘉泰姆

电感电流临界连续模式Tym嘉泰姆

超低(10uA) 启动电流Tym嘉泰姆

FB 反馈电阻值高,功耗低Tym嘉泰姆

LED 开路/短路保护Tym嘉泰姆

电流采样电阻开路保护Tym嘉泰姆

逐周期原边电流限流Tym嘉泰姆

芯片供电过压/欠压保护Tym嘉泰姆

自动重启功能Tym嘉泰姆

小体积的SOT23-6封装Tym嘉泰姆

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     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!Tym嘉泰姆

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