• [ CXLE8191 ]"

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1.产品概述       2.产品特点     v9w嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）v9w嘉泰姆

5.产品封装       6.电路原理图  v9w嘉泰姆

7.相关产品v9w嘉泰姆

   产品概述 返回TOPv9w嘉泰姆

The CXLE8191 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 CXLE8191 to drive up to 38V output (10 LEDs in series). Alternatively, CXLE8191 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 CXLE8191, 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 CXLE8191 is available in Green TSOT-23-6 package. It operates over an ambient temperature range of -40℃ to +85℃.

   产品特点 返回TOPv9w嘉泰姆

• Wide Output Range: Up to 10 Series LEDsv9w嘉泰姆
• Integrated 40V High Current Switch (1.35A Limit)v9w嘉泰姆
• 2.7V to 5.5V Input Voltage Rangev9w嘉泰姆
• High Efficiency PWM Converterv9w嘉泰姆
• Low 200mV Feedback Voltagev9w嘉泰姆
• 500kΩ Pull-Low Resistor on CTRL Pinv9w嘉泰姆
• 2kHz to 60kHz PWM Dimming Frequencyv9w嘉泰姆
• 38V Open LED Protectionv9w嘉泰姆
• 1MHz Switching Frequencyv9w嘉泰姆
• Integrated Soft-Start Functionv9w嘉泰姆
• Less than 1μA Shutdown Currentv9w嘉泰姆
• Simple, Small Solution Sizev9w嘉泰姆
• Available in Green TSOT-23-6 Packagev9w嘉泰姆
• -40℃ to +85℃ Temperature Rangev9w嘉泰姆

   应用范围 返回TOPv9w嘉泰姆

LED Backlightingv9w嘉泰姆
Mobile Phonesv9w嘉泰姆
Handheld Devicesv9w嘉泰姆
Digital Photo Framesv9w嘉泰姆
Automotive Navigationv9w嘉泰姆

   技术规格书（产品PDF) 返回TOP v9w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！v9w嘉泰姆

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产品封装图 返回TOPv9w嘉泰姆

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电路原理图 返回TOPv9w嘉泰姆

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◀ Previous:CXLE8190 is a step-up DC/DC converter designed for driving the white LEDs with an externally programmable constant current. This device features integrated, 38V power MOSFET that is capable of drivin

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Next▶:CXLE8192 The default white LED current is set with the external sensor resistor RSET, and the feedback voltage is regulated to 200mV, as shown in the typical application. During the operation, the LED