CXLE8155高功率高效率的升压转换器集成了30V场效应管LCD面板背光应用30V输出电压8个大功率LED串联3.5A电感电流限制LED串并联连接

CXLE8155是一款高功率高效率的升压转换器，集成了30V场效应管，非常适合LCD面板背光应用。30V输出电压允许8个大功率LED串联，3.5A电感电流限制允许更多LED串并联连接。低的0.5V反馈电压在WLED驱动器应用中提供了更高的效率。从2.7V到21V的宽输入范围使CXLE8155成为各种应用（如LCD显示器和便携式设备）的完美解决方案。OVP引脚监测输出电压，以在开路负载和FB引脚短路操作期间保护IC。CXLE8155提供了ALS引脚，以简化与环境光传感器的接口，实现自动调光。
·宽输入电压范围从2.7伏到21伏
·高达3.5A的高电流限制
·0.5V参考电压，系统精度为±3%
·50mW集成N-FET
·固定1.2兆赫开关频率
·效率高达95%
·开放式LED保护
·欠压闭锁保护
·ALS控制输入引脚
·过温保护
·低关断电流：<1毫安

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 CXLE8155 is the high power and high efficiency boost converter with an integrated 30V FET ideal for LCD panel backlighting applications. 30V output voltage allows for 8 high-power LEDs in series, and 3.5A inductor current limit allows for more LED strings connected in parallel. The low 0.5V feedback voltage offers higher efficiency in WLED driver applications. The wide input range from 2.7V to 21V made CXLE8155 a perfect solution for various applications such as LCD monitor and portable devices. The OVP pin monitors the output voltage to protect IC during open load and FB pin short circuit operations. The CXLE8155 provides the ALS pin to simplify the interface to an ambient light sensor for automatic dimming. The CXLE8155is available in the thermally enhanced DFN-10 lead 3mmx3mm package.

   产品特点 返回TOP

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· Wide Input Voltage Range from 2.7V to 21V 

· High Current-Limit up to 3.5A 

· 0.5V Reference Voltage with ±3% System Accuracy 

· 50mW Integrated N-FET 

· Fixed 1.2MHz Switching Frequency 

· High Efficiency up to 95% 

· Open-LED Protection 

· Under-Voltage Lockout Protection 

· ALS Control Input Pin 

· Over-Temperature Protection 

· Low Shutdown Current:<1mA 

· 3mmx3mm DFN-10 Package 

· Lead Free and Green Devices Available (RoHS Compliant)

   应用范围 返回TOP

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· Display Backlighting 

- Automotive 

- LCD Monitors 

- Notebook Displays 

· Portable Displays

   技术规格书（产品PDF) 返回TOP 

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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！

 

产品封装图 返回TOP

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电路原理图 返回TOP

 

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Lighting and Display Product > White LED Driver
Part_No	Topology	Archi tecture	Input  Voltage (V)		Adj. Output  Voltage V	No.  of  LEDs	LED Current  (Max) (A)	Switch Current Limit (A)	Current Sense Voltage (typ)(V)	Switching Frequency (kHz)	Dimming Control	Package
			min	max	max
CXLE8153	Boost	CM	2.7	6	32	8	0.03	0.9	0.25	1000	Analog	SOT23-6
CXLE8154	Boost	VM	2.5	6	19	4	0.03	0.4	0.25	1000	Analog PWM	SOT23-6
CXLE8155	Boost	CM	2.7	21	30	8	0.6	3.5	0.5	1200	Analog	DFN3x3-10
CXLE8156	Charge  Pump	-	2.8	4.5	-	4	0.03	-	-	1000	Analog PWM  Digital	QFN4x4-16
CXLE8157	Charge  Pump	-	2.8	4.5	-	6	0.03	-	-	1000	Analog PWM Digital	QFN4x4-16
CXLE8158	Charge  Pump	-	2.8	4.5	-	4	0.03	-	-	1000	Analog PWM Digital	QFN3x3-16
CXLE8159	Boost	CM	2.5	6	24	6	0.03	1.2	0.1	1000	Analog PWM	SOT23-6
CXLE8160	Boost	CM	2.5	6	39	10	0.03	0.9	0.3	1000	Analog PWM	SOT23-6
CXLE8161	Boost	CM	2.5	6	24	6	0.03	1.2	0.2	1000	Analog PWM	SOT23-6
CXLE8162	Boost	CM	2.5	6	40	10	0.03	1.5	0.2	600	Analog PWM	TDFN2x2-6
CXLE8163	Boost	CM	2.5	6	24	6	0.03	2	0.2	1500	Analog PWM	SOT23-6
CXLE8164	Buck	CM	3	5.5	-							SOT23-5
CXLE8165	Boost	CM	6	24	65	17	0.18per string	3.3	0.5	200   ~ 900	External PWM Dimming/I2C	TDFN5x5-16
CXLE8166	Boost	CM	2.7	6	40	10	0.03	1.5	0.2	600	Analog  PWM	TDFN2x2-6