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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
发表时间:2020-06-09浏览次数:63
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     gwb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 gwb嘉泰姆

z Up to 87% Efficiency gwb嘉泰姆

z 1.25MHz Fixed Switching Frequency gwb嘉泰姆

z Low 104mV Feedback Voltage gwb嘉泰姆

z Open Load Shutdown gwb嘉泰姆

z PWM Dimming gwb嘉泰姆

z SOT23‐6 Packages gwb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

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