CXLE81122 a high integrated and high performance Light Emitting Diode (LED) driver optimized for LCD monitor backlight application. It integrates 8 channels of current source to drive LED arrays

产品概述

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CXLE81122 is a high integrated and high performance Light Emitting Diode (LED) driver optimized for LCD monitor backlight application. It integrates 8 channels of current source to drive LED arrays, and thus provides a cost effective and high reliability LCD backlight solution. CXLE81122 operates in current mode boost topology, and supports various dimming functions and comprehensive protections.

   产品特点 返回TOP

◆ Minimal required external components
◆ Current mode boost topology
◆ ±3% matching accuracy between 8 LED strings control current
◆ High precision reference and Selective-Frequency (160KHz/320KHz/640KHz/1.2MHz) control
◆ External programmability of the key parameters
◆ Flexible Dimming mode Control: 
◇ Internal burst, external burst (LPWM) dimming control 
◇ 0-2V DC voltage or external PWM direct dimming control without external circuits
◇ Dimming range programmable (100%~0%)
◆ Comprehensive protection coverage:
◇ Output over voltage protection (OVP)
◇ Under voltage lockout 
◇ Open LED protection and programmable short LED protection
◇ Over temperature protection (OTP)
◆ Available in QFN24/TSSOP24 packages, RoHS compliant

   应用范围 返回TOP

◆ Notebook PC
◆ LCD monitor
◆ LCD TV

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