CXLE8188

CXLE8188是一款多功能恒流LED驱动器,具有高效的升压转换器结构。独特的技术和高1.35A电流限制允许CXLE8188驱动高达38V的输出(10个LED串联)。或者,CXLE8188可以提供260毫安的总电流,每串3个系列LED。它还可以最大限度地提高电流能力,同时实现高转换效率。优化后的1MHz开关频率降低了传导损耗,减小了外部元件尺寸。集成了32步调节FB电压的单线接口,克服了常规PWM调光方案中的噪声和浪涌电流问题。
CXLE8188内置了各种保护功能,包括逐周输入电流限制保护、开路LED(输出过电压)保护和热关机保护。关闭模式下的泄漏电流小于1μA。

CXLE8188单线调光接口驱动38V输出10个LED串联多功能恒流LED驱动器高效的升压高效的PWM转换器结构2.7V至5.5V输入电压软启动功能

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1.产品概述       2.产品特点     8mk嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)8mk嘉泰姆

5.产品封装       6.电路原理图  8mk嘉泰姆

7.相关产品8mk嘉泰姆

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The CXLE8188 is a versatile constant current LED driver with a high efficiency step-up converter architecture. Unique technology and high 1.35A current limit allow CXLE8188 to drive up to 38V output (10 LEDs in series). Alternatively, CXLE8188 can deliver 260mA total current with 3 series LEDs per string. It can also maximize the current capability while achieving high conversion efficiency. The optimized 1MHz switching frequency results in reduced conduction loss and small external component size. A single wire interface is integrated to adjust the FB voltage in 32 steps, which can overcome audible noise and inrush current issues in normal PWM dimming schemes.Various protection features are built into the CXLE8188, including cycle-by-cycle input current limit protection, open LED (output over-voltage) protection and thermal shutdown protection. The leakage current in shutdown mode is less than 1μA.The CXLE8188 is available in Green TSOT-23-6 package. It operates over an ambient temperature range of -40℃ to +85℃.

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• Wide Output Range: Up to 10 Series LEDs8mk嘉泰姆
• Integrated 40V High Current Switch (1.35A Limit)8mk嘉泰姆
• 2.7V to 5.5V Input Voltage Range8mk嘉泰姆
• High Efficiency PWM Converter8mk嘉泰姆
• Low 200mV Feedback Voltage8mk嘉泰姆
• 500kΩ Pull-Low Resistor on CTRL Pin8mk嘉泰姆
• Single Wire Dimming Interface8mk嘉泰姆
• 38V Open LED Protection8mk嘉泰姆
• 1MHz Switching Frequency8mk嘉泰姆
• Integrated Soft-Start Function8mk嘉泰姆
• Less than 1μA Shutdown Current8mk嘉泰姆
• Simple, Small Solution Size8mk嘉泰姆
• Available in Green TSOT-23-6 Package8mk嘉泰姆
• -40℃ to +85℃ Temperature Range8mk嘉泰姆

   应用范围 返回TOP8mk嘉泰姆


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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8mk嘉泰姆

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◀ 上一篇:CXLE8187脉宽调制调光38V高效率升压多功能恒流LED驱动器低功耗MOSFET输出10个LED串联高效的PWM转换器低300毫伏反馈电压2kHz至60kHz的脉宽调制调光频率

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下一篇▶:串联驱动10个LED的38V开放式LED保护升压boost转换器以1.2MHz固定开关频率开关电流限制1.1A脉宽调制亮度控制CXLE8189