CXLE87158模拟调光和脉宽调制调光电流模式单片LED驱动器LED电流通过模拟输入电压控制通过高侧LED电流感应降压升压或降压升压拓扑4.6V至44V工作输入范围2A峰值开关电流

CXLE87158是一个电流模式单片LED驱动器。LED电流可以通过模拟输入电压控制。通过高侧LED电流感应，CXLE87158可以配置为降压、升压或降压升压拓扑，以满足不同的LED驱动器需求。集成的44V/2A N沟道mosfet保证了高效率的工作。在轻负载下，CXLE87158在低频下工作，以保持高效率和低输出纹波。SW引脚上的过压锁定保护可防止CXLE87158出现LED开路故障。CXLE87158在140摄氏度时也有热保护。

4.6V至44V工作输入范围2A峰值开关电流
模拟调光和脉宽调制调光

恒定关闭时间操作

开关过电压锁定
热保护

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）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXLE87158 is a current mode monolithic LED driver. The LED current can be controlled with an analog input voltage.  With high-side LED current sensing, the CXLE87158 can be configured as buck, boost or buck-boost topology to serve different LED driver need. The integrated 44V/2A N-Channel MOSFETs ensures high efficiency operation.  At light loads, CXLE87158 operates in low frequency to maintain high efficiency and low output ripple. The overvoltage lockout protection on SW pin protects CXLE87158 from open LED fault. CXLE87158 also has thermal protection at 140oC. The CXLE87158 is available in a 6-pin SOT23-6and a 8-pin ESOP8 package, which provides a compact solution with minimal external components. 

   产品特点 返回TOP

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4.6V to 44V operating input range 2A peak switch current 

Analog dimming and PWM dimming 

Constant off-time operation 

SW over voltage lockout 

Thermal protection 

Available in SOT23-6and ESOP8 package

   应用范围 返回TOP

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LED Driver

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

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DC/DC (照明驱动产品）
产品型号	封装	拓扑	频率	输入		调光	过流保护 短路保护
				Vin(V)	Iout(A)
CXLE87158	ESOP8   SOT23-6	Buck, Boost	Constant  2us toff	4.6~44	2A    peak	PWM/Analog	Y
CXLE87159	SOT23-6	Buck	1MHz	3.8~24	2A	PWM/Analog	Y
CXLE87160	SOT23-6	Buck	Constant  2us toff	4.6~30	2A    peak	PWM/Analog	Y
CXLE87161	SOT23-6	Buck	1MHz	4.5~28	1.2A	PWM/Analog	Y