CXSU63168

CXSU63168是一款升压型DC/DC转换器,设计用于从单电池锂离子电池以恒定电流串联驱动多达5个白色LED。因为它直接调节输出电流,所以CXSU63168是驱动发光二极管(LED)的理想选择,发光二极管(LED)的光强度与通过它们的电流成正比,而不是其端子上的电压。单个外部电阻器将LED电流设置在2毫安到20毫安之间,然后可以使用高达100千赫的直流电压或脉冲宽度调制(PWM)信号轻松调整

升压型DC/DC转换器1.25MHz固定开关频率PWM调光CXSU63168单电池锂离子电池以恒定电流串联驱动5个白色LED

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1.产品概述       2.产品特点     yfd嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)yfd嘉泰姆

5.产品封装       6.电路原理图  yfd嘉泰姆

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The CXSU63168 is a step‐up DC/DC converter designed for driving up to 5 white LEDs in series from a single cell Lithium Ion battery with constant current. Because it directly regulates output current, the CXSU63168 is ideal for driving    light    emitting    diodes    (LEDs)    whose    light intensity is proportional to the current passing through them, not the voltage across their terminals. A single external resistor sets LED current between 2mA and 20mA, which can then be easily adjusted using either a DC voltage or a pulse width modulated (PWM) signal up    to    100KHz.    Its    low    104mV    feedback    voltage reduces power loss and improves efficiency. The OV pin    monitors    the    output voltage    and    turns    off    the converter if an over‐voltage condition is present due to an open circuit condition. The CXSU63168 is available in SOT23‐6 packages.

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z Drives Up to 5 Series White LEDs from 3V yfd嘉泰姆

z Up to 87% Efficiency yfd嘉泰姆

z 1.25MHz Fixed Switching Frequency yfd嘉泰姆

z Low 104mV Feedback Voltage yfd嘉泰姆

z Open Load Shutdown yfd嘉泰姆

z PWM Dimming yfd嘉泰姆

z SOT23‐6 Packages yfd嘉泰姆

z RoHS compliantyfd嘉泰姆

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z Cell Phones yfd嘉泰姆

z Handheld Computers and PDAs yfd嘉泰姆

z Digital Cameras z Small LCD Displaysyfd嘉泰姆

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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

◀ 上一篇:升压DC/DC转换器内置振荡器可以选择1.2MHz或3.0MHz CXSU63167

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下一篇▶:电流模式和固定频率升压转换器CXSU63169串联驱动8个白色LED固定1MHz开关频率效率高达87%脉宽调制亮度控制频率