AGREE

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RT5047A

单输出 LNB 供应和控制电压调节器

RT5047A
New

RT5047A是一高度整合电压调节器与IC接口,专门设计从先进的卫星机顶盒 (STB) 组件供应电源及控制信号到LNB降控制器的天线或多开关盒。
此设置随着22kHz信号支持DiSEqCTM1.x通讯所需的电路，包含独立电流模式升压模式控制器和低电压差线性调节器。
RT5047A有错误侦测保护 (过流保护、过温保护及欠压锁定)。
其支持SOP-8 (裸露焊盘) 封装以达到优化过温散热的解决方案。

应用

  • LNB 电源供应和控制卫星机顶盒
  • 模拟及数字卫星接受器/卫星电视、卫星PC卡

主要规格

RT5047A
Status Active
Vin (min) (V) 8
Vin (max) (V) 16
Number of Channels 1
Number of Boost Converters 1
Number of LDO Regulators 1
Application LNB Regulator
Features Current Mode Control;Internal Compensation;OCP;OVP;SCP;UVP
Package Type PSOP-8

关键特性

  • 输入电压范围 : 8V~16V

  • 45ms定时器, 550mA的输出电流限制

  • 低噪声LNB输出电压 (13.3V及18.3V SEL引脚)

  • 0mA~500mA ±3%高精度电流输出

  • 推拉输出级最小值13.3V~18.3V及18.3V~13.3V输出转换时间

  • 外部22kHz信号输入

  • 符合DiSEqCTM1.x协议

  • 输出短路电流保护

  • 过温保护

Datasheet

DS5047A-01.pdf

Datasheet

DS5047A-01.pdf

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