输入电压从2.7伏到21伏固定1.2兆赫开关频率高功率高效率的升压转换器CXSU63174电流上限3.5A LED串并联连接高效率高达95%低压闭锁保护

CXSU63174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CXSU63174成为各种应用（如LCD显示器和便携式设备）的完美解决方案

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 CXSU63174 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 CXSU63174 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 CXSU63174 provides the ALS pin to simplify the interface to an ambient light sensor for automatic dimming. The CXSU63174 is 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 

 50mΩ 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

   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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产品封装图 返回TOP

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电路原理图 返回TOP

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Step-up Converter
Part No.	Input Voltage	Output Voltage	Current MAX	Frequency	Efficiency	Package
CXSU63168	6V	20V	350mA	1.25MHz	90%	SOT23-6
CXSU63169	6V	20V/28V/35V	1A	1MHz	90%	SOT23-6
CXSU63170	6V	24V	2A	1.5MHz	90%	SOT23-6
CXSU63171	6V	6V	2A	1MHz	90%	SOT23-6
CXSU63172	6V	20V	2A	1.5MHz	88%	SOT23-5
CXSU63173	6V	20V	2A	1.5MHz	88%	SOT23-6
CXSU63174	20V	30V	3.5A	1.2MHz	95%	DFN-10
CXSU63175	6V	--V	--A	1MHz	90%	SOP-8/TSSOP-8
CXSU63176	6V	6V	2A	1MHz	95%	SOT23-6
CXSU63177	5V	5V	2.1A	1.2MHz	92%	/DFN-12/QFN-16QFN-16
CXSU63178	5V	5V	2.1A	1.2MHz	92%	ESOP-8
CXSU63179	5V	5V	6A	1.2MHz	92%	ESOP-8