双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)

用于以太网供电(PoE)的ASFET

Enhanced SOA in a range of compact packages

增强的SOA、增强的保护、低导通电阻和更高的功率密度

最新的高功率48V以太网供电标准(IEEE 802.3bt)和专有方法使下一代PoE系统成为可能。此类系统可为各个通电设备提供高达100W的电力,包括大屏幕LCD显示器、5G皮蜂窝区、先进的Wi-Fi热点和平移倾斜变焦CCTV摄像机。这对PoE电源设备(PSE)提出了更高的要求,即与Nexperia专用PoE MOSFET系列相匹配的需求。

Power Sourcing Equipment / Power over Ethernet
Power Sourcing Equipment / Power over Ethernet

用于以太网供电(PoE)的ASFET专为配合使用最新的高功率、PSE控制器而设计:

  • MOSFET的主要作用是在向网络添加电容负载时安全地控制冲击电流
  • 扩展的增强安全操作区(SOA)能够承受短路故障情况引起的功耗,直到PSE控制器检测到故障并关闭为止
  • 增强的保护——我们的MOSFET提供的保护功能超过竞争性器件两倍多。在电缆短路故障期间,我们用于PoE的ASFET可在+60 ℃的环境温度下安全耗散高达30 W的电力长达20 ms
  • 要将更多高功率PoE端口压缩到紧凑型路由器/交换机中,需要LFPAK33封装的热效率和紧凑尺寸能够提供更高的功率密度。
  
    

电源设备/以太网供电

 

Nexperia实际应用

凌力尔特的LTC4279新PSE控制器数据手册中引用的PSMN075-100MSE、PSMN040-100MSE、PSMN4R8-100BSE MOSFET来自我们差异化的适用于热插拔和软启动的ASFET/适用于以太网供电的ASFET产品组合。

 

Parametric search

ASFETs for PoE, eFuse and relay replacement
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Products

Type number Description Status Quick access
PSMN075-100MSE N-channel 100 V 71 mΩ standard level MOSFET in LFPAK33 designed specifically for PoE applications Production
PSMN040-100MSE N-channel 100 V 36.6 mΩ standard level MOSFET in LFPAK33 designed specifically for high power PoE applications Production
PSMN047-100NSE N-channel 100 V, 53 mOhm standard level ASFET with enhanced SOA in DFN2020. Designed for high power PoE, inrush management, eFuse and relay replacement Production
PSMN071-100NSE N-channel 100 V, 82 mOhm standard level ASFET with enhanced SOA in DFN2020. Designed for high power PoE, inrush management, eFuse and relay replacement Production
Visit our documentation center for all documentation

Application note (2)

File name Title Type Date
AN50006.pdf Power MOSFETs in linear mode Application note 2022-04-12
AN11158.pdf Understanding power MOSFET data sheet parameters Application note 2020-07-06

Marcom graphics (1)

File name Title Type Date
RS2780_PoE_blue-scr.jpg POE MarCom image Marcom graphics 2020-09-16

Selection guide (1)

File name Title Type Date
Nexperia_Selection_guide_2023.pdf Nexperia Selection Guide 2023 Selection guide 2023-05-10

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Cross reference