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首页 > Products > Led Driver > Boost and Buck Linear CC LED driver > Low Voltage Linear Buck LED Drive >Cxle8243 is a constant current source with continuous inductive current conduction mode, which is used to drive one or more LEDs in series. The power switch with on resistance of 0.6 Ω is built in the chip
Cxle8243 is a constant current source with continuous inductive current conduction mode, which is used to drive one or more LEDs in series. The power switch with on resistance of 0.6 Ω is built in the chip

Cxle8243 is a constant current source with continuous inductive current conduction mode, which is used to drive one or more LEDs in series. The power switch with on resistance of 0.6 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 0.8A.
Cxle8243 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

Cxle8243 is a constant current source with continuous inductive current conduction mode, which is used to drive one or more LEDs in series. The power switch with on resistance of 0.6 Ω is built in the chip
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目录WUj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) WUj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
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一,产品概述(General Description)      WUj嘉泰姆


      CXLE8243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WUj嘉泰姆
 内置导通电阻为0.6Ω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WUj嘉泰姆
 高达数十瓦的 LED,最大输出电流可达 0.8A。WUj嘉泰姆
      CXLE8243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WUj嘉泰姆
 关关断,芯片进入低功耗待机状态WUj嘉泰姆
二.产品特点(Features)
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输入电压范围:6V to 36VWUj嘉泰姆
最大输出LED电流0.8AWUj嘉泰姆
5%的输出电流精度WUj嘉泰姆
高达 97%的效率WUj嘉泰姆
极少的外部器件WUj嘉泰姆
复用 DIM 引脚进行 LED 开关、模拟调光和WUj嘉泰姆
PWM 调光WUj嘉泰姆
LED 开路保护WUj嘉泰姆
过热保护WUj嘉泰姆
输出电流可调节WUj嘉泰姆
具有输入欠压保护功能WUj嘉泰姆
三,应用范围 (Applications)
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低压 LED 射灯代替卤素灯WUj嘉泰姆
车载 LED 灯WUj嘉泰姆
LED 备用灯WUj嘉泰姆
LED 信号灯WUj嘉泰姆
四.技术规格书下载(产品PDF)
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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!WUj嘉泰姆

 QQ截图20160419174301.jpgWUj嘉泰姆

五,产品封装图 (Package)WUj嘉泰姆


2.JPGWUj嘉泰姆

六.电路原理图WUj嘉泰姆


1.JPGWUj嘉泰姆

七,功能概述WUj嘉泰姆


◇电源电压VIN ------------------- −0.3V to 44 VWUj嘉泰姆
◇SW 端电压, SW -------−0.3V to (VIN + 0.3V)WUj嘉泰姆
◇CSN端电压 ---------------−0.3V to(VIN - 6V)WUj嘉泰姆
◇DIM端电压 ------------------------ −0.3V to 6VWUj嘉泰姆
◇结温 ---------------------------------------- 150℃WUj嘉泰姆
◇存放温度范围 ---------------- −55℃ to 150℃WUj嘉泰姆
◇SOP89-5,θJA --------------------------- 45℃/WWUj嘉泰姆
◇功耗 ------------------------------------------1.2W WUj嘉泰姆
◇ESD保护(HBM人体模式) ---------------- 2kVWUj嘉泰姆
八,相关芯片选择指南WUj嘉泰姆

芯片型号WUj嘉泰姆

工作电压WUj嘉泰姆

拓朴结构WUj嘉泰姆

最大转换效率WUj嘉泰姆

调光方式WUj嘉泰姆

最大开关频率WUj嘉泰姆

最大驱动电流WUj嘉泰姆

封装规格WUj嘉泰姆

CXLE8242WUj嘉泰姆

6V~36VWUj嘉泰姆

降压WUj嘉泰姆

97%WUj嘉泰姆

PWMWUj嘉泰姆

1MHzWUj嘉泰姆

1.2AWUj嘉泰姆

SOT23-5/SOT89-5/ESOP8WUj嘉泰姆

CXLE8243WUj嘉泰姆

6V~40VWUj嘉泰姆

降压WUj嘉泰姆

97%WUj嘉泰姆

PWMWUj嘉泰姆

1MHzWUj嘉泰姆

1.0AWUj嘉泰姆

SOT23-5/SOT89-5/ESOP8WUj嘉泰姆