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首页 > Products > Led Driver > LED Driver Chip > SCR Dimming >Cxle82102a cxle82102b is a high precision LED constant current control chip, which works in the zero current conduction mode and the peak current shutdown mode
Cxle82102a cxle82102b is a high precision LED constant current control chip, which works in the zero current conduction mode and the peak current shutdown mode

Cxle82102a cxle82102b is a high precision LED constant current control chip, which works in the zero current conduction mode and the peak current shutdown mode (CRM, critical conduction mode). It is mainly used in the buck, fly back LED power supply system. Cxle82102a cxle82102b supports high power factor applications, and PF can reach more than 0.8. The critical conduction mode ensures that the cxle82102a cxle82102b can control the power switch to open when the inductive current is zero, and reduces the switching loss of the power transistor. The critical conduction control mode of inductor current combined with bus voltage compensation ensures the high precision of output LED current, and has good linear adjustment rate and load adjustment rate. It is not sensitive to the change of inductance. I-type inductance can be used. Cxle82102a cxle82102b chip has built-in 300V high-voltage power MOS tube, simple peripheral circuit and low system cost. Mcxle82102a cxle82102b has realized various protection functions at the same time, including OCP, SCP, OVP and tadj to ensure the reliable operation of the system.

Cxle82102a cxle82102b is a high precision LED constant current control chip, which works in the zero current conduction mode and the peak current shutdown mode
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1.产品概述       2.产品特点     Bq5嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)Bq5嘉泰姆

5.产品封装       6.电路原理图  Bq5嘉泰姆

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         CXLE82102A CXLE82102B是一款工作于零电流导通,峰值电流关断 的临界导 通模式 (CRM ,Critical Conduction Mode)高精度LED恒流控制芯片,主要应用于 BUCK,Fly-back LED电源系统。CXLE82102A CXLE82102B支持高功率因数的应用,PF可达到0.8以上。 临界导通模式确保了CXLE82102A CXLE82102B可以控制功率开关 在电感电流为零时刻开启,减小了功率管的开关损 耗。电感电流临界导通控制模式结合母线电压补 偿,确保了输出LED电流的高精度,并且具有良好 的线性调整率和负载调整率。对电感量变化不敏 感,可以使用工字电感。 CXLE82102A CXLE82102B芯片内置300V高压功率MOS管,外围电 路简单,系统成本低。 CXLE82102A CXLE82102B同时实现了各种保护功能,包括逐周期过 流保护(OCP)、LED 短路保护(SCP)、LED 可调 开路保护(OVP)和过热自动调节(TADJ)等,以 确保系统可靠地工作。 CXLE82102A CXLE82102B具有线性补偿电路,此电路可实现良好的 线性调整率及最大调光亮度,具有广泛的兼容性, 调光深度低于 1%,调光曲线满足 NEMA SSL6 标 准。

   产品特点 返回TOPBq5嘉泰姆


 兼容可控硅调光 Bq5嘉泰姆

 支持高PF应用,PF达到0.8以上 Bq5嘉泰姆

 宽范围的调光兼容性 Bq5嘉泰姆

 调光深度可低于1% Bq5嘉泰姆

 调光曲线符合NEMA SSL6标准 Bq5嘉泰姆

 内置300V功率MOS管 Bq5嘉泰姆

 高精度LED恒流电流 Bq5嘉泰姆

 逐周期峰值电流控制 Bq5嘉泰姆

 LED短路保护 Bq5嘉泰姆

 LED可调开路保护 Bq5嘉泰姆

 欠压锁定保护(UVLO) Bq5嘉泰姆

 过热自动调节 Bq5嘉泰姆

 SOP7封装Bq5嘉泰姆

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 LED球泡灯,面板灯等 Bq5嘉泰姆

 LED灯丝灯等 Bq5嘉泰姆

 其他LED驱动应用及通用恒流源Bq5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Bq5嘉泰姆

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