应用与设计

以太网供电DC-DC控制器

详情介绍

以太网供电DC-DC控制器

  • 强固的3.0 kV线缆ESD保护
  • 强固的8.0-15 kV系统级ESD保护
  • 符合IEC61000-4-5浪涌标准,无需外部保护

IEEE 802.3at, 40 W – 控制器、接口及供电器件

IEEE 802.3at + 辅助电源, 40 W – 控制器、接口及供电器件

IEEE 802.3at (非隔离), 达40 W – 控制器件

IEEE 802.3af, 3 W – 控制器件

分立接口




IEEE 802.3at, 40 W


  • 为PoE+ IEEE 802.3at (4.0版草案)应用提供25.5 W功率,为专有应用提供达40 W功率
  • 支持IEEE两个事件分类
  • 集成型多拓扑结构DC-DC转换器控制器在低输出电压时执行高能效电源转换
  • 一流的线缆ESD及热特性

IEEE 802.3at, 40 W


IEEE 802.3at + 辅助电源, 40 W


  • 辅助电源输入电压范围为9.0 V至57 V
  • 集成型多拓扑结构DC-DC转换器结合辅助电压输入,在低输出电压时执行高能效电源转换
  • 为PoE+ IEEE 802.3at (4.0版草案)应用提供25.5 W功率,为专有应用提供达40 W功率
  • 支持IEEE两个事件分类
  • 一流的线缆ESD及热特性

IEEE 802.3at + Auxiliary, 40 W


IEEE 802.3at (非隔离), 达40 W


  • 非隔离应用采用简单、高性价比的方案
  • 可编程过流保护
  • 根据功率需求灵活调节输出MOSFET

IEEE 802.3at (Non-Isolated), up to 40 W


IEEE 802.3af, 3 W


  • 集成脉宽调制(PWM)控制器及供电器件(power device),符合达7.5 W功率要求
  • 达1 MHz开关频率适合高功率密度设计
  • 能配置为任何单端拓扑结构,如正激或反激拓扑结构

IEEE 802.3af, 3 W


分立接口


  • PoE签名(signature)及检测的低成本分立方案

Discrete Interface
NCP1081: Integrated 40 W High Power PoE-PD & DC-DC Converter Controller MBRS1100: 100 V, 1.0 A Schottky Rectifier 1SMA58A: 400 Watt SMA Transient Voltage Suppressor, 58 V Unidirectional NTB30N20: Power MOSFET 200V 30A 81 mOhm Single N-Channel D2PAK MBRS1100: 100 V, 1.0 A Schottky Rectifier TL431: Programmable Precision Reference / Shunt Regulator NCP1083: Integrated 40 W High Power PoE-PD & DC-DC Converter Controller with Auxiliary Supply Support MBRS1100: 100 V, 1.0 A Schottky Rectifier MBRS1100: 100 V, 1.0 A Schottky Rectifier 1SMA58A: 400 Watt SMA Transient Voltage Suppressor, 58 V Unidirectional TL431: Programmable Precision Reference / Shunt Regulator NTB30N20: Power MOSFET 200V 30A 81 mOhm Single N-Channel D2PAK NCP1034: 100 V Synchronous Buck Controller MMSD4148: 100 V Switching Diode NTD3055-094: Power MOSFET 60V 12A 94 mOhm Single N-Channel DPAK NTD24N06: Power MOSFET 60V 24A 42 mOhm Single N-Channel DPAK NCP1090: Integrated IEEE 802.3af PoE-PD Interface Controller NCP1031: Integrated DC-DC Converter for Power over Ethernet & Telecom MBR340: 40 V, 3.0 A Schottky Rectifier MUR110: 100 V, 1.0 A Ultrafast Rectifier TL431: Programmable Precision Reference / Shunt Regulator NCP1090: Integrated IEEE 802.3af PoE-PD Interface Controller TL431: Programmable Precision Reference / Shunt Regulator MMSZ5239B: 500 mW, 9.1 V ±5% Zener Diode Voltage Regulator 2N5550: Small Signal NPN Bipolar Transistor MMSZ5245B: 500 mW, 15 V ±5% Zener Diode Voltage Regulator MMSZ5252B: 500 mW, 24 V ±5% Zener Diode Voltage Regulator NTD12N10: Power MOSFET 100V 12A 165 mOhm Single N-Channel IPAK

Featured

Quad-core Flexibility

Ultra-Low-Power Consumption

Programmable Flexibility

Wireless Control

Ultra-high Audio Fidelity