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MAX17114
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MAX17114

  • 所属类别:运算放大器
  • 产品名称:高度集成的液晶电视电源与伽玛参考和威科姆运算放大器
  • 厂商:MAXIM
  • 生产批号:12+
  • 封装:QFN-48
  • 库存状态:有库存
  • 库存量:9000
  • 最低订购量:1
  • 详细资料:点击查找MAX17114的pdf资料
  • 点击询价
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  • Product Introduction
MAX17114高度集成的液晶电视电源与伽玛参考和威科姆运算放大器

description

该max17114生成所有电源轨的薄膜晶体管液晶显示器(液晶电视面板操作)从管制电压输入。 它包括一个降压和升压稳压器,正、负电荷泵,一个运算放大器,高精度,高电压基准,和一个高压开关控制块。 该max17114可以操作从输入电压从赫利对16.5v和优化液晶电视面板运行直接从直流用品。

升压和降压开关稳压器具有内部功率MOSFET高频操作允许使用较小的电感器和电容器,从而在一个紧凑的解决方案。 升压稳压器提供液晶源驱动器电源电压,而降压稳压器提供了系统的逻辑电源电压。 监管机构使用固定频率电流模式控制架构,提供快速load-transient反应和简单的补偿。 一种限流功能的内部开关和output-fault关机保护升压和降压电源故障条件。 该max17114提供软启动功能限制浪涌电流的启动过程。 此外,该max17114集成控制块,可以驱动一个外部沟道MOS序列功率源驱动器。

正、负电荷泵稳压器提供薄膜晶体管栅极驱动器电源电压。 输出电压可调节外部电阻voltage-dividers。 一个逻辑控制,High voltage switch块允许操纵的正栅极驱动器供应。 该max17114包括一个大电流Operational amplifiers设计驱动液晶背板(修复)。 该放大器具有高输出电流(±200 mA),转换速率快(45v /µ县),宽的带宽(赫兹),和轨至轨输出。

还展出了max17114是一种高精度,高压可调参考伽玛校正。

该max17114可在一个小(7毫米×7毫米),超薄(0.8毫米),48-pin,tqfn-ep包和工作在- 40℃至+ 85°°℃温度范围。

Key features:

  • 8.0v到16.5v在电源电压范围
  • 可选频率(500 kHz / 750khz)
  • 电流升压稳压器
    • 快速反应 load-transient
    • 高精度的输出电压(1%)
    • 内置V,最大ΩMOS ,100
    • 效率高
    • 可调软启动
    • 可调节电流限制
    • 低占空比操作(13.2v - 13.5v avdd)
  • 电流模式降压稳压器
    • 快速反应 load-transient
    • 内置的20,3,1ΩMOS
    • 效率高
    • 内部软启动值
  • 可调正电荷泵稳压器
  • 可调负电荷泵稳压器
  • 一体化高压开关可调导通延迟
  • 高速运算放大器
    • ± 最大短路电流
    • 45v /µ的转换率
  • 高精度参考伽玛缓冲器
    • 0.5% ±反馈电压
    • 上为负载电流
    • 低压差电压在60毫安 0.5
  • 外沟道闸控制 avdd测序
  • 横轴比较器
  • 输入undervoltage-lockout和thermal-overload保护
  • 48-pin,7毫米×7毫米,薄QFN封装

Applications/Uses:

  • 液晶电视面板

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