CXLE8734带有PFM的单片高压开关稳压器工作电压DC 12V~80V高效的LED驱动器开关调节器直接驱动1~18系列1W/3W LED优化功率高压MOSFET热关机限流功能

CXLE8734是一种带有PFM的单片高压开关稳压器，专门设计用于从12V~80V直流电源操作。
CXLE8734是一款高效的LED驱动器开关调节器。LED串由直流恒流驱动，而不是恒压驱动，从而提供恒定的光输出和增强的可靠性
1.）工作电压DC 12V~80V
2.）0.1V电流感应电压参考。
3.）直接驱动1~18系列1W/3W LED。
4）良好的线路和负载调节。
5.）内部优化功率高压MOSFET。
6.）内置热关机功能。
7.）内置限流功能。
8.）内置软启动电路。
9.）提供TO263-5L包装。
10.）效率高达98%。

目录

1.产品概述                       2.产品特点
3.应用范围                       4.下载产品资料PDF文档 
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)

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  The CXLE8734 is a monolithic high voltage switching regulator with PFM that is
specifically designed to operate from a 12V~80V DC power supply.
  The CXLE8734 is a high efficiency LED driver switching regulator. The LED string
is driven at DC constant current rather than constant voltage, thus providing constantlight output and enhanced reliability.
二.产品特点(Features)

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1.)Operation Voltage DC 12V~80V
2.)0.1V current sense voltage reference.
3.)Directly drive 1~18 Series 1W/3W LED.
4.)Excellent line and load regulation.
5.)Internal Optimize Power HV-MOSFET.
6.)Built in Thermal Shutdown Function.
7.)Built in Current Limiting Function.
8.)Built in Soft-Start Circuit.
9.)Available in TO263-5L package.
10.)Up to 98% efficiency.
三,应用范围 (Applications)

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LED Lighting & LED LAMP
General purpose LED lighting
四.下载产品资料PDF文档

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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 (Package)

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Pin Number	Pin Name	Description
1	START	Internal soft start Pin.
2	VREG	Internal Voltage Regulation Pin. (The VREG is about 8V)
3	VIN	Input high voltage Pin. (Operation voltage 12V~80V)
4	CSN	Current Sense Negative Pin.
5	CSP	Current Sense Positive Pin. (The current sense voltage is .1V)

六.电路原理图

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七,功能概述

Parameter	Symbol	Value	Unit
Input Voltage	Vin	-0.3 to 90	V
Power Dissipation	PD	Internally limited	mW
Thermal Resistance (TO263-5L)(Junction to Ambient, No Heatsink, Free Air)	RJA	30	oC/W
Operating Junction Temperature	TJ	-40 to 125	oC
Storage Temperature	TSTG	-65 to 150	oC
Lead Temperature (Soldering, 10 sec)	TLEAD	260	oC
ESD (HBM)		>3000	V

八,相关产品         更多同类产品......

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LED车灯驱动IC
型号	工作电压范围	输出电流	输出电流精度	效率	工作频率	封装
CXLE8728	24V--80V	0.5A	2%	96%	80KHz	SOP-8
CXLE8729	24V--100V	0.5A	2%	95%	127KHz	SOP-8
CXLE8730	10V--75V	0.5A/可PWM数字/模拟调光	2%	96%		SOP-8
CXLE8731	8V--100V	1.3A/13W/可PWM数字/模拟调光	2%	90%	500KHz	ESOP-8
CXLE8732	8V--100V	扩流2A/50W/可PWM数字/模拟调光	2%	90%	500KHz	SOP-8
CXLE8733	24V--80V	1A	2%	96%	70KHz	TO252-5L
CXLE8734	12V--80V	1A	2%	98%	80KHz	TO263-5L