Cxle86184 is a segmented linear constant current LED driver chip. With segmented linear architecture, it can automatically switch LED light strings according to segmented led voltage drop without external settings, simplifying the system design. No electrolytic capacitor, inductor or transformer is needed in the periphery of the system. The whole system is simple and low cost. Cxle86184 can drive up to three series LED lamp strings. When the input voltage changes, the number of connected led strings will be changed automatically. In the whole AC cycle, the time for led to be lit is increased, so the utilization rate of LED is improved and the power factor is improved. The PFC is as high as 0.99, and the thd is less than 15%. Cxle86184 uses constant current control and compensation technology, and the current accuracy can be controlled within ?3%. In addition, the current of each LED string can be set flexibly through different sampling resistance values
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[ CXLE86184 ]"
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7.相关产品
产品概述 返回TOP
CXLE86184是一款分段式线性恒流LED驱动芯片，采用分段线性架构，可根据分段LED电压降自动切换 LED灯串，无需外部设置，简化了系统设计。系统 外围无需电解电容，电感，或变压器等元件，整个 系统简约、成本低。 CXLE86184可以驱动多达三段串联的LED灯串，在输 入电压变化时，自动改变接入的LED串数。在整个 交流周期内，增加了LED被点亮的时间，从而提高 了LED的利用率并且改善功率因子，使得PFC高达 0.99，THD小于15%。 CXLE86184用恒流控制与补偿技术， 电流精度可控在±3%以内。此外，每串LED的电流 可通过不同的采样电阻值来灵活设置。
产品特点 返回TOP
线性分段式恒流LED驱动
可根据LED压降自动切换LED灯串
每段LED电流可通过外围电阻灵活设置
高精度LED恒流电流 (±3%)
支持最大LED峰值电流：60mA
PFC高达0.99，THD小于15%
过温保护
高温下功率自动降低
内置功率管简化外围器件
ESOP8封装
应用范围 返回TOP
LED日光灯，LED面板灯
LED球泡灯，LED装饰灯
其他紧凑型LED照明产品
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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高压线性驱动 |
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型 号 |
描 述 |
Vin(V) |
最大驱动能力 |
功率因数 |
调光方式 |
封装 |
|
单段式,外置MOS |
90~132VAC,200~260VAC |
20W |
>0.9 |
N/A |
SOT23-6 |
|
|
单段式,内置MOS |
90~132VAC,200~260VAC |
7W |
>0.9 |
N/A |
SOP8 |
|
|
三段式,外置MOS |
90~132VAC,200~260VAC |
9W |
>0.9 |
N/A |
ESOP8 |
|
