CXLE81126高度集成的高性能冷阴极荧光灯(CCFL)控制器,针对LCD显示器背光应用进行了优化。它集成了高精度(2%)的4通道电流和1通道电压反馈控制,从而以最少的系统BOM数量提供了一种低成本,高可靠性的LCD背光解决方案。CXLE81126控制推挽拓扑,并支持各种调光功能和全面的保护
| 产品型号: | CXLE81126 |
| 产品类型: | 背光驱动 |
| 产品系列: | 白灯背光驱动IC |
| 产品状态: | 量产 |
| 浏览次数: | 63 次 |
产品简介
CXLE81126 is a high integrated and high performance Cold Cathode Fluorescent Lamp (CCFL) controller optimized for LCD monitor backlight application. It integrates high precision (2%) 4 channels of current and 1 channel of voltage feedback control, and thus provides a low-cost and high reliability LCD backlight solution with minimum system BOM count. CXLE81126 controls push pull topology and supports various dimming functions and comprehensive protections.CXLE81126是一款高度集成的高性能冷阴极荧光灯(CCFL)控制器,针对LCD显示器背光应用进行了优化。它集成了高精度(2%)的4通道电流和1通道电压反馈控制,从而以最少的系统BOM数量提供了一种低成本,高可靠性的LCD背光解决方案。CXLE81126控制推挽拓扑,并支持各种调光功能和全面的保护.
技术参数
| 输入电压范围 (VIN) | ≤ 6V to 30VV |
|---|
| 输出电压 (VOUT) | 0-2VV |
|---|
| 输出电流 (IOUT) | 340mAA |
|---|
| 工作频率 | 460KHzHz |
|---|
| 转换效率 | 95%% |
|---|
| 封装类型 | SOP16 |
|---|
| Topology | 白灯背光驱动IC |
|---|
| Led count | 5-6 LED Driver, Can drive 6*4 or 3*12 LEDs |
|---|
| Dimming method | PWM调光 |
|---|
| Dimming ratio | 1000:1 |
|---|
| Protection | 欠压/过温/过流/短路保护 |
|---|
| Features | Boost/Buck |
|---|
| Efficiency | .92 |
|---|
| Pwm frequency | 20kHz |
|---|
| Application type | 背光驱动 |
|---|
| Topology | Push Pull |
|---|
| Striking Mode | Fix Frequency |
|---|
| External PWM Dimming | Y |
|---|
| Analog Dimming | Y |
|---|
| Internal Burst Dimming | N |
|---|
| Supply Voltage Detection | N |
|---|
| Output OVP | N |
|---|
| OLP | Y |
|---|
| OCP | Y |
|---|
| Soft-start | Y |
|---|
产品详细介绍
产品概述
CXLE81126 is a high integrated and high performance Cold Cathode Fluorescent Lamp (CCFL) controller optimized for LCD monitor backlight application. It integrates high precision (2%) 4 channels of current and 1 channel of voltage feedback control, and thus provides a low-cost and high reliability LCD backlight solution with minimum system BOM count. CXLE81126 controls push pull topology and supports various dimming functions and comprehensive protections.CXLE81126是一款高度集成的高性能冷阴极荧光灯(CCFL)控制器,针对LCD显示器背光应用进行了优化。它集成了高精度(2%)的4通道电流和1通道电压反馈控制,从而以最少的系统BOM数量提供了一种低成本,高可靠性的LCD背光解决方案。CXLE81126控制推挽拓扑,并支持各种调光功能和全面的保护.
产品特点 返回TOP
◆ Minimal required external components
◆ Push pull topology
◆ High precision reference and frequency control
◆ External programmability of the key parameters
◆ Flexible Dimming mode control:
◇ Analog dimming control
◇ Internal burst dimming control
◇ External burst (LPWM) dimming control
◇ 0-2V DC voltage direct dimming control without external circuits
◇ Dimming range programmable (Max.: 100%~0%)
◆ Comprehensive Protection Coverage:
◇ Output over voltage protection (OVP)
◇ Output over current protection (OCP)
◇ Open lamp protection and short lamp protection
◇ Arcing protection
◆ Available in SOP16 packages,RoHS compliant
◆所需的外部组件最少
◆推挽式拓扑结构
◆高精度参考和频率控制
◆关键参数的外部可编程功能
◆灵活的调光模式控制:
◇模拟调光控制
◇内部突发调光控制
◇外部突发(LPWM)调光控制
◇ 0-2V DC电压直接调光控制,无需外部电路
◇调光范围可编程(最大值:100%〜0 %)
◆全面的保护范围:
◇输出过压保护(OVP) )
◇输出过电流保护(OCP)
◇开灯保护和短灯保护
◇电弧保护
◆采用SOP16封装,符合RoHS要求
应用范围 返回TOP
LCD CCFL backlight system in
◆ LCD monitor
LCD CCFL背光系统
◆LCD显示器
技术规格书(产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP

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| CCFL背光驱动系列 |
| Product Number |
Topology |
Striking Mode |
External PWM Dimming |
Analog Dimming |
Internal Burst Dimming |
Supply Voltage Detection |
Output OVP |
OLP |
OCP |
Soft-start |
| CXLE81125 |
Push Pull |
Fix Frequency |
Y |
Y |
N |
N |
N |
Y |
Y |
Y |
| CXLE81126 |
Push Pull |
Fix Frequency |
Y |
Y |
Y |
N |
Y |
Y |
Y |
Y |
| CXLE81127/N |
Push Pull |
Fix Frequency |
Y |
Y |
Y |
Y |
Y |
Y |
Y |
Y |
| CXLE81128 |
Full Bridge |
Fix Frequency |
Y |
Y |
Y |
N |
Y |
Y |
Y |
Y |
| CXLE81129 |
Push Pull |
Fix Frequency |
Y |
Y |
Y |
N |
Y |
Y |
Y |
Y |
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