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首页 > Products > Led Driver > Boost and Buck Linear CC LED driver > Buck CC LED Drive >Cxle8242 is a constant current source with continuous inductance and current conduction mode, which is used to drive one or more LEDs in series. The power switch with on resistance of 0.3 Ω
Cxle8242 is a constant current source with continuous inductance and current conduction mode, which is used to drive one or more LEDs in series. The power switch with on resistance of 0.3 Ω

Cxle8242 is a constant current source with continuous inductance and current conduction mode, which is used to drive one or more LEDs in series. The power switch with on resistance of 0.3 Ω is built in the chip, and the input voltage can be 6V to 36V. According to different external devices, the chip can drive up to tens of watts of LED, and the maximum output current can reach 1.2A.
Cxle8242 has dimming function, which realizes analog dimming and wide range PWM dimming through dim pin. When the VDIM is lower than 0.3V, the power switch turns off and the chip enters the low-power standby state

Cxle8242 is a constant current source with continuous inductance and current conduction mode, which is used to drive one or more LEDs in series. The power switch with on resistance of 0.3 Ω
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目录xbu嘉泰姆
1.产品概述       2.产品特点     3.应用范围      4.技术规格书下载(产品PDF文档) xbu嘉泰姆
5.产品封装图   6.电路原理图  7.功能概述      8.相关产品

一,产品概述(General Description)      xbu嘉泰姆


   CXLE8242是一款连续电感电流导通模式的降压恒流源,用于驱动一颗或者多颗串联LED芯片 xbu嘉泰姆
内置导通电阻为0.3Ω的功率开关,输入电压可以由6V到36V,并且根据不同外部器件,芯片可以驱动xbu嘉泰姆
高达数十瓦的 LED,最大输出电流可达 1.2A。xbu嘉泰姆
     CXLE8242具有调光功能,通过DIM引脚实现模拟调光和宽范围PWM调光。当VDIM低于0.3V时,功率开xbu嘉泰姆
关关断,芯片进入低功耗待机状态xbu嘉泰姆
二.产品特点(Features)xbu嘉泰姆


 输入电压范围:6V to 36Vxbu嘉泰姆
最大输出LED电流1.2Axbu嘉泰姆
5%的输出电流精度xbu嘉泰姆
高达 97%的效率xbu嘉泰姆
极少的外部器件xbu嘉泰姆
复用 DIM 引脚进行 LED 开关、模拟调光和xbu嘉泰姆
PWM 调光xbu嘉泰姆
LED 开路保护xbu嘉泰姆
过热保护xbu嘉泰姆
输出电流可调节xbu嘉泰姆
具有输入欠压保护功能xbu嘉泰姆
三,应用范围 (Applications)xbu嘉泰姆


低压 LED 射灯代替卤素灯xbu嘉泰姆
车载 LED 灯xbu嘉泰姆
LED 备用灯xbu嘉泰姆
LED 信号灯xbu嘉泰姆
四.技术规格书下载(产品PDF)xbu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xbu嘉泰姆

 QQ截图20160419174301.jpgxbu嘉泰姆

五,产品封装图 (Package)xbu嘉泰姆


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六.电路原理图xbu嘉泰姆


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七,功能概述xbu嘉泰姆
直线xbu嘉泰姆
电源电压VIN ------------------- −0.3V to 44 Vxbu嘉泰姆
SW 端电压, SW -------−0.3V to (VIN + 0.3V)xbu嘉泰姆
◇CSN端电压 ---------------−0.3V to(VIN - 6V)xbu嘉泰姆
◇DIM端电压 ------------------------ −0.3V to 6Vxbu嘉泰姆
◇结温 ---------------------------------------- 150℃xbu嘉泰姆
◇存放温度范围 ---------------- −55℃ to 150℃xbu嘉泰姆
◇SOP89-5,θJA --------------------------- 45℃/Wxbu嘉泰姆
◇功耗 ------------------------------------------1.2Wxbu嘉泰姆
◇ESD保护(HBM人体模式) ---------------- 2kVxbu嘉泰姆
八,相关芯片选择指南xbu嘉泰姆


芯片型号 工作电压 拓朴结构 最大转换效率 调光方式 最大开关频率 最大驱动电流 封装规格
CXLE8242 6V~36V 降压 97% PWM 1MHz 1.2A SOT23-5/SOT89-5/ESOP8
CXLE8243 6V~40V 降压 97% PWM 1MHz 1.0A SOT23-5/SOT89-5/ESOP8