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iW7023

iW7023

LCD面板的16通道广播™背光管理IC

不推荐用于新设计 - 见iW7027.

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16-channel, internal current sinks high power LED support

IW7023集成了16个开漏电流水槽，每个通道最多可达150mA平均电流，以驱动LED，两个数字升压或降压控制器接口，以优化系统功率效率，以及两个LDO以提供全面的背光管理的所有必要组件边缘或直接亮灯的LED电视。

Using Dialog's patentedBroadLED™自适应开关模式技术，IW7023以最大效率保持高电流匹配的通道到通道电流匹配±2％。IW7023可实现多种模式的全面PWM调光，提供广泛的保护功能。

Features

  • 16通道LED驱动器，90V MAX LED电压能够平均为150mA，240mA峰值电流/通道
    • 调光模式下150mA max
    • 240mA max in scanning mode and in dimming mode with 60% adaptive-switch mode
  • Patented Adaptive-Switch Mode LED Driving Scheme to Maximize Channel Efficiency
  • 2个用于外部DC / DC转换器的控制器 - 每个DC / DC的独立动态电压控制

Features

  • SPI Interface for High-Bandwidth Control and Local Dimming
  • LED Brightness Dimming - Local, Scanning and 3D Game Mode
    • PWM Dimming Range - 1% to 99.98% at 12 bits; 1% to 99% at 10 bits
    • PWM Dimming Frequency - NTSC , PAL and 3D Game Modes
  • Sync Function allows Synchronization with Additional iW70xx Products
  • LED故障保护 - 开放式和短路 - 逐周期保护
  • 过度温度和UVLO

雷竞技安卓下载

  • Edgelit Local Dimming for LED TVs
  • Direct and Segment-Edge LED Backlit LCD TVs
  • LCD Public Information Displays

框图

典型应用图雷竞技安卓下载
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功能框图

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