Cxle8620 sets the output current through an external resistance, the maximum output current can reach 2.5A; the maximum current detection accuracy can reach ?1%; only a few peripheral components can realize the function of voltage reduction and constant current drive, and the function of brightness control can be realized through dim pin. The system adopts inductor current hysteresis control mode, which makes the load transient
The transformer has a very fast response and a high rejection ratio to the input voltage; its inductance current ripple is 20%, and the highest working frequency can reach 1MHz. The cxle8620 is particularly suitable for wide input voltage range applications, with input voltage range from 5.5V to 36V and operating temperature range from - 20oC to 85oc. The cxle8620 has a built-in LDO with an output voltage of 5V and a maximum current output of 5mA

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[ CXLE8620 ]"
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
CXLE8620是一款降压型的高精度高亮度LED恒流驱动控制器。CXLE8620通过一个外接电阻设定输出电流,最大输出电流可达2.5A;电流检测精度最高可达±1%;外围只需很少的元件就可实现降压、恒流驱动功能,并可以通过DIM引脚实现辉度控制功能。系统采用电感电流滞环控制方式,对负载瞬变具有非常快的响应,对输入电压具有高的抑制比;其电感电流纹波为20%,且最高工作频率可达1MHz。CXLE8620特别适合宽输入电压范围的应用,其输入电压范围从5.5V到36V;而工作温度范围从-20oC到85oC。CXLE8620特别内置了一个LDO,其输出电压为5V,最大可提供5mA电流输出。
CXLE8620采用小的SOT23-6封装。
二.产品特点
最大输出电流:2.5A
高效率:96%
高端电流检测
最大辉度控制频率:5KHz
滞环控制,无需补偿
最高工作频率:1MHz
电流精度:最高可达±1%
宽输入电压:5.5V~36V
最高输出功率: 25W
5V,5mA片上稳压器
三.应用范围
手电筒,电动车灯,自行车灯,汽车灯,射灯 LED驱动恒流源
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
LED驱动 > 降压恒流 | ||||||
产品型号 | 输入电压 | 输出电压 | 输出电流 | 工作效率 | 产品封装 | 备注 |
CXLE8615/CXLE8616 | 92% | ESOP8 | ||||
CXLE8617 | 6-100v | 低于输入 | 3A | 95 | sot23-6 | 可做足3A |
CXLE8618 | 2.5-100V | 低于输入电压 | 几十毫安到 2.5A | 90% | SOT23-6 | 降压恒流 |
CXLE8619 | 5.5-36V | 低于输入电压 | 800mA | 95% | SOP-8 | 降压恒流 |
CXLE8620 | 5.5-36V | 低于输入电压 | 3A | 95% | SOT23-6 | 降压恒流 |