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TPS23861是一款易于使用的灵活IEEE802.3at PSE解决方案。该器件在出厂后,无需借助任何外部控制即可自动管理四个802.3at端口。
TPS23861自动检测具有有效签名的供电器件(PD),根据分类确定供电需求,并施加电源。支持针对类型2 PD的两事件分类.TPS23861支持直流断开和外部场效应应晶体管(FET)架构,从而使得设计人员能够在尺寸,效率和解决方案成本需要之间作出平衡。
独特的引脚分配可通过逻辑分组和I 2 C以及电源引脚的上下清晰区分来实现2层PCB设计。这提供了同类产品中最佳的热性能,Kelvin精度和低构建成本。
除了自动运行模式外,TPS23861还可通过I 2 C控制实现半自动模式,从而实现精确监视和智能电源管理。无论是在半自动模式还是自动模式下,都能够保证400ms T PON < /sub>规范值。
所有商标均为各自所有者的财产。
Vin (Min) (V) |
Vin (Max) (V) |
ICUT |
ILIM |
PoE Standards Supported |
FET |
MPS Method |
Pair Control |
Operating Temperature Range (C) |
No. of PSE Ports |
Features |
Pin/Package |
TPS23861 | TPS2388 | TPS23880 |
---|---|---|
44 | 44 | 44 |
57 | 57 | 57 |
Programmable | Programmable | Programmable |
Programmable | Programmable | Programmable |
802.3at Type 1 (802.3af) 802.3at Type 2 | 802.3at Type 1 (802.3af) 802.3at Type 2 | 802.3at Type 1 (802.3af) 802.3at Type 2 802.3bt Type 3 802.3bt Type 4 |
External | External | External |
DC Disconnect | DC Disconnect | DC Disconnect |
2-Pair Alt A | 2-Pair Alt A | 2-Pair Alt A 4-Pair |
-40 to 125 | -40 to 125 | -40 to 125 |
4 | 8 | 8 |
Autonomous Mode Current Limit with Foldback Fast shutdown Over Current Reporting Over Temp Reporting | Current Limit with Foldback Fast shutdown Multi Level Port Priority Over Current Reporting Over Temp Reporting Port remapping | Auto Mode Current Limit with Foldback Fast shutdown Multi Level Port Priority Over Current Reporting Over Temp Reporting Port remapping Programmable Port Power Limiting SRAM Programmable |
28TSSOP | 56QFN | 56QFN |
型号:TPS23861PWR 封装:TSSOP28_9.7X4.4MM
品牌:TI 描述:以太网供电控制器(PoE)-4-通道-802.3at(PoE+)-802.3af(PoE)-28-TSSOP
金额:¥
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