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  • 广州TX5121(DC-DC升压控制器)

广州TX5121(DC-DC升压控制器)

产品品牌:太矽

产品型号:TX5121

产品封装:SOT23-6

产品特性:输入电压 2.2V-6V;20V过压保护;白光背光驱动

应用范围:通讯设备 移动电话

产品价格:欢迎咨询0755-86003350 / 13480769332

资料下载:

一:Features

Inherently Matched LED Current
High Efficiency:82%
Drives Up to Six LEDs from 2.2VSupply
20V Over Voltage Protection
Fast 1.4MHz Switching Frequency
Requires Only 1μF Output Capacitors
SOT-23-6 Package  

二:Applications

Communication equipment
White LED Backlight Display for PDA
Pocket PC
Handheld Devices
Cellular Phones
White LED display backlighting  

三:General Description

The TX5121 is a step-up DC/DC converter specifically designed to drive up to 6 series white LEDs with constant current. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminates the need for ballast resistors. The TX5121 switches at 1.4MHz, allowing the use of tiny external components. A low 0.25V feedback voltage minimizes power loss in the current setting resistor for high efficiency. The OVP pin monitors the output voltage and turns off the converter whenever the LEDs are open.

The TX5121 is available in low profile SOT-23-6 package.

相关标签:DC-DC升压IC,TX5121(DC-DC升压控制器),
来源:http://gz.szxunrui.cn/product494199.html
时间:2019/12/16 16:35:33

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