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TPS23851 High Power Wide Voltage Range Quad Port Ethernet Power Sourcing Equipment Manager

TPS23851 描述

The TPS23851 is a quad-power controller engineered to insert power onto Ethernet cable according to IEEE Std 802.3at-2009 (or 802.3at) for Power Sourcing Equipment (PSE). The PSE controller can detect Powered devices (PDs) that have a valid signature, determine the power requirements of the devices according to the classification, and apply power to the devices, limited per 802.3at. Based on an industry standard register set, the PSE controller is software compatible with other PSE controllers for basic functionality.

Beyond the industry standard operation, the TPS23851 operates with enhanced features. Port current trip point can be set to all classification thresholds of IEEE Std 802.3-2005 (or 802.3af) and can be programmed up to more than 720 mA when used with a LLDP classification stack, complying with 802.

TPS23851
No. of Outputs 4
Adjustable Current Limit(Min)(A) 0.052
Vin(Min)(V) 25
Vin(Max)(V) 34
Pin/Package 36SSOP
Operating Temperature Range(°C) -20 to 125
TPS23851 特性
TPS23851 芯片订购指南
器件 状态 温度 (oC) 价格(美元) | Quantity 封装 | 引脚 封装数量 | 封装载体 丝印标记
TPS23851DCE PREVIEW -20 to 125 6.50 | 1ku SSOP (DCE) | 36 25  
TPS23851DCER PREVIEW -20 to 125 4.50 | 1ku SSOP (DCE) | 36 1000  
TPS23851 应用技术支持与电子电路设计开发资源下载
  1. TPS23851 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器无限流负载开关产品选型与价格 . xls
  3. PowerPADTM Thermally Enhanced Package (PDF 1040 KB)
  4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
  5. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  6. Comparing Performance of Current Ramp and Voltage Ramp Hot Swap Controller ICs (PDF 356 KB)
  7. PowerPADTM Made Easy (PDF 57 KB)
  8. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
  9. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  10. 所选封装材料的热学和电学性质 (PDF 645 KB)
  11. 高速数据转换 (PDF 1967 KB)
TPS23851 相关工具
名称 型号 公司 工具/软件类型
TPS23851 评估模块 TPS23851EVM Texas Instruments 开发电路板/EVM