40V异步升压驱动单串10颗LED输出OVP采用内部控制EN脚可直接实现PWM调光CXLE8201智能手机平板电脑的TFT屏背光 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录 1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档） 一.产品概述 CXLE8201是一款40V异步升压，可驱动单串10颗LED，是智能手机和小尺寸平板电脑的TFT屏背光的最佳选择。CXLE8201为了实现最佳升压效率，采用了外部补偿。输出OVP则采用了内部控制，省去了一个引脚。CXLE8201在3.6V输入时驱动10颗LED，效率可达88%，领先所有竞争对手。同时，其EN脚可直接实现PWM调光，无需外围电路。CXLE8201采用SOT23-6封装。 The CXLE8201 is a high efficiency step-up converter with an internally integrated 40V power MOSEFT. It runs with a optimal 600KHz frequency that enables the use of small external components while still providing the best efficiency. It can drive up to 10 to 12 LEDs in series and also in parallel combinations. The incorporated true PWM-Diming feature through CTRL pin does not generate audible noise on the output capacitor during diming because it does not burst the LED current. For maximum protection, the CXLE8201 has an OVP protection feature that prevents the output voltage exceeding the maximum rating of the CXLE8201 and the output cap during open-LED conditions. CXLE8201 is available in a space-saving SOT23-6 package. 二.产品特点 ◆最高输出电压40V ◆内置40V OVP ◆Up to 92% Efficiency ◆40V OVP protection ◆True PWM Brightness Control ◆200mV Feedback Voltage ◆ SOT23-6 Package 三.应用范围 ◆智能手机 四.技术规格书（产品PDF) 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！ 五.产品封装图 六.电路原理图
七.相关芯片选择指南
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
40V异步升压驱动单串10颗LED输出OVP采用内部控制EN脚可直接实现PWM调光CXLE8201智能手机平板电脑的TFT屏背光
发表时间：2020-06-05浏览次数：12
