4-string LED Driver with Build-in Boost Regulator The device operates over a wide input voltage range of 4V to 24V. CXLE81117 has adjustable switching frequency from 300kHz to 2MHz. The LED current ca

   产品概述 返回TOPRfB嘉泰姆

       CXLE81117 develops a high efficiency boost regulator with four matching current source to drive up to four strings of white LEDs in the backlight applications of LCD panels.
The device operates over a wide input voltage range of 4V to 24V. CXLE81117 has adjustable switching frequency from 300kHz to 2MHz. The LED current can be programmed from 10mA to 40mA. CXLE81117 also integrates PWM dimming function for accurate LED current control.
The CXLE81117 is available in QFN3x3-16 package.

   产品特点 返回TOPRfB嘉泰姆

RfB嘉泰姆

Programmable switching frequency to achieve best efficiency and EMI performanceRfB嘉泰姆

Drive up to 4 strings of LEDs with up to 12 LED per stringRfB嘉泰姆

Minimum on time: 80ns typicalRfB嘉泰姆

Adjustable over voltage protectionRfB嘉泰姆

Low Rdson of internal boost switch: 220mohmRfB嘉泰姆

PWM dimming control: 0%~100%RfB嘉泰姆

Dimming Frequency: 100Hz~30kHzRfB嘉泰姆

+/-2% current matching among strings guaranteed for above 10% dimming levelRfB嘉泰姆

Programmable LED current: up to 40mA per string. +/-3% accuracyRfB嘉泰姆

Internal softstartRfB嘉泰姆

Compact packages: QFN3x3-16RfB嘉泰姆

   应用范围 返回TOPRfB嘉泰姆

     Monitor Panel BacklightRfB嘉泰姆

• TV Panel BacklightRfB嘉泰姆

   技术规格书（产品PDF) 返回TOP RfB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</span>！</span>
RfB嘉泰姆