1A输出电流连续模式感应降压转换器驱动单个多个串联LEDCXLE8104输出开关和高压侧输出电流感应电路外部电阻器设置平均输出电流

CXLE8104是一种连续模式感应降压转换器。它可以驱动单个或多个串联LED。CXLE8104包括输出开关和高压侧输出电流感应电路，该电路使用外部电阻器设置平均输出电流。输出电流也可以通过向“ADJ”引脚施加外部信号来调整。ADJ引脚将接受直流电压或脉冲宽度调制波形。PWM滤波器组件包含在芯片中。在ADJ引脚上施加低于0.2V的电压将关闭输出。

                          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

一.产品概述

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  The CXLE8104 is a continuous mode inductive step down converter. It can driving single or multiple series connected LEDs. The CXLE8104 includes the output switch and a high-side output current sensing circuit, which use an external resistor to set the average output current. Output current can also be adjusted by applying an external signal to the ‘ADJ’ pin. The ADJ pin will accept either a DC voltage or a PWM waveform. The PWM filter components are contained within the chip. Applying a voltage under 0.2V to the ADJ pin will turn off the output. 
      The CXLE8104 is available in the SOT89-5L package and provides space-saving PCB for the application fields. 

二.产品特点

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˙1A Output Current
˙Internal 0.5Ω 26V Power MOSFET Switch
˙Wide 7 to 26V Operating Input Range
˙20μA Shutdown Mode Current
˙Typical 4% Output Current Accuracy
˙Signal pin ON / OFF and Brightness Control 
˙Adjustable Soft-Start 
˙Up to 95% Efficiency
˙Up to 1MHz Switching Frequency
˙Internal Dimming Filter
˙Package: SOT89-5L 

三.应用范围

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Ø Low Voltage Halogen replacement LEDs

Ø LED back-up lighting  

四.技术规格书（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！

 

五.产品封装图

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六.电路原理图

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七.相关芯片选择指南       更多同类产品......

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WHITE LED DRIVERS
Part No.	VIN		VOUT	# of	Driver	Feedback	Switching	Notes	Package	Status
	(Min)	(Max)	(Max)	LEDs	Current	Voltage	Frequency
	(V)		(V)	(Max)	(A)	(V)	(kHz)
CXLE8101	3.6	28	25	6	2	0.25	320	100% Duty	SOP8	MP
CXLE8102	3.6	28	25	6	3	0.25	320	100% Duty	SOP8	MP
CXLE8103	7	26	26	7	0.7	NA	NA		SOT23-5	MP
CXLE8104	7	26	26	7	1	NA	NA		SOT89-5	MP
CXLE8105	2.7	5.5	20	5	0.75	0.25	1200		SOT23-6	MP
CXLE8106	8.5	100	VIN*0.9	VIN*0.9	ILED	0.25	Auto	Buck	SOP8	MP