CXLE8102 PWM控制buck转换器驱动大功率led提供简单高效的解决方案0.25V参考电压反馈控制外部电阻器根据驱动各种类型LED所需的电流设置

CXLE8102是一种PWM控制buck转换器，旨在为驱动大功率led提供一种简单、高效的解决方案。通过0.25V参考电压反馈控制，以最小化功耗，外部电阻器根据驱动各种类型LED所需的电流设置。CXLE8102包括一个大电流P-MOSFET，以实现高效率和优异的瞬态特性。该PWM控制电路能够将占空比从0线性变化到100%。其他功能包括用户可访问的EN/DIM管脚，用于启用led和PWM调光、热关机、逐周期电流限制和过电流保护。

                          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

一.产品概述

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  The CXLE8102 is a PWM control buck converter designed to provide a simple, high efficiency solution for driving high power LEDs. With a 0.25V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. The CXLE8102 includes a high current P-MOSFET to realize high efficiency and excellent transient characteristics. The PWM control circuit is able to change the duty ratio linearly from 0 up to 100%. Other features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs, thermal shutdown, cycle-by cycle current limit and over current protection. 

二.产品特点

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˙Wide Supply Voltage Operating Range: 3.6 to 28V 
˙Built-in P-MOSFET for 3A Loading Capability
˙Precision Feedback Reference Voltage: 0.25V (2%)
˙Low Current Consumption: 4mA
˙Internal Fixed Oscillator Frequency: 320KHz (Typ.)
˙Internal Soft-Start Function (SS)
˙Over Current Protection
˙Package: SOP-8L

三.应用范围

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Ø Chargers

Ø LCD Displays

Ø Digital Cameras

Ø Handheld Devices

Ø Portable Products      

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