• [ CXLE8194 ]

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1.产品概述       2.产品特点     b4E嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）b4E嘉泰姆

5.产品封装       6.电路原理图  b4E嘉泰姆

7.相关产品b4E嘉泰姆

   产品概述 返回TOPb4E嘉泰姆

The CXLE8194 is a versatile constant current LED driver with a high efficiency step-up converter architecture. The low-side power MOSFET is integrated in the device, significantly shrinking the overall PCB layout area and minimizing the total number of external components. Unique technology and high 1.35A current limit allow CXLE8194 to drive up to 38V output (10 LEDs in series). Alternatively, CXLE8194 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. Digital PWM dimming interface is integrated to adjust LED current. The PWM frequency is in the range from 2kHz to 60kHz.Various protection features are built into the CXLE8194, 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 CXLE8194 is available in Green TDFN-2×2-8L package. It operates over an ambient temperature range of -40℃ to +85℃.

   产品特点 返回TOPb4E嘉泰姆

• Wide Output Range: Up to 10 Series LEDsb4E嘉泰姆
• Integrated 40V High Current Switch (1.35A Limit)b4E嘉泰姆
• 2.7V to 5.5V Input Voltage Rangeb4E嘉泰姆
• High Efficiency PWM Converterb4E嘉泰姆
• Low 200mV Feedback Voltageb4E嘉泰姆
• 500kΩ Pull-Low Resistor on EN/PWM Pinb4E嘉泰姆
• 2kHz to 60kHz PWM Dimming Frequencyb4E嘉泰姆
• 38V Open LED Protectionb4E嘉泰姆
• 1MHz Switching Frequencyb4E嘉泰姆
• Integrated Soft-Start Functionb4E嘉泰姆
• Less than 1μA Shutdown Currentb4E嘉泰姆
• Simple, Small Solution Sizeb4E嘉泰姆
• Available in Green TDFN-2×2-8L Packageb4E嘉泰姆
• -40℃ to +85℃ Temperature Rangeb4E嘉泰姆

   应用范围 返回TOPb4E嘉泰姆

LED Backlightingb4E嘉泰姆
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Handheld Devicesb4E嘉泰姆
Digital Photo Framesb4E嘉泰姆
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   技术规格书（产品PDF) 返回TOP b4E嘉泰姆

     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！b4E嘉泰姆

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产品封装图 返回TOPb4E嘉泰姆

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电路原理图 返回TOPb4E嘉泰姆

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◀ 上一篇:CXLE8193多功能恒流LED驱动器高效的升压转换器结构高效的PWM转换器低200毫伏反馈电压单线调光接口38V开放式LED保护宽输出范围最多10个串联LED

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下一篇▶:CXLE8195脉宽调制调光控制接口40V额定集成开关FET串联驱动LED的升压转换器输入电压2.7V至5.5V背光模式下200mV反馈电压LED电流由控制引脚的脉冲宽度调制PWM信号控制

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