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TPS23756 高功率/高效率 PoE 接口和 DC/DC 控制器

TPS23756 描述

The TPS23754/6 is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode dc/dc controller optimized specifically for isolated converters. The PoE interface supports the IEEE 802.3at standard.

The TPS23754/6 supports a number of input voltage ORing options including highest voltage, external adapter preference, and PoE preference. These features allow the designer to determine which power source will carry the load under all conditions.

The PoE interface features the new extended hardware classification necessary for compatibility with high-power midspan power sourcing equipment (PSE) per IEEE 802.3at. The detection signature pin can also be used to force power from the PoE source off.

TPS23754 TPS23754-1 TPS23756
PoE Standards Supported 802.3at type1,2 802.3at type1,2 802.3at type1,2
PD Power Level 25W 25W 25W
PoE Inrush Limit(Typ)(mA) 140 140 140
PoE Current Limit(Min)(mA) 850 850 850
UVLO Unified Unified Unified
rDS(on) per FET(Typ)(mOhms) 430 430 430
Fault Response Auto Retry Auto Retry Auto Retry
Error Amplifier No No No
Auxiliary/Local Power Support Programmable Programmable Programmable
Auxiliary Power Rails Supported 24V-57V 24V-57V 12V-57V
Driven/Active Clamp (Second Gate Drive) Yes Yes Yes
Duty Cycle(%) 78 78 78
Switching Frequency Synchronizable and Programmable Synchronizable and Programmable Synchronizable and Programmableup to 1MHz
Operating Temperature Range(°C) -40 to 125 -40 to 125 -40 to 125
Pin/Package 20HTSSOP 20HTSSOP 20HTSSOP
Approx. Price (US$) 1.90 | 1ku 1.90 | 1ku 1.90 | 1ku
Rating Catalog Catalog Catalog
TPS23756 特性
TPS23756 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
TPS23756PW ACTIVE -40 to 125 2.00 | 1ku TSSOP (PW) | 20 70 | TUBE TPS23756
TPS23756PWR ACTIVE -40 to 125 1.65 | 1ku TSSOP (PW) | 20 2000 | LARGE T&R TPS23756
TPS23756 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
TPS23756PW Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS23756PW TPS23756PW
TPS23756PWR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS23756PWR TPS23756PWR
TPS23756 应用技术支持与电子电路设计开发资源下载
  1. TPS23756 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器受电器件产品选型与价格 . 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)
TPS23756 相关工具
名称 型号 公司 工具/软件类型
用于 TPS23756 的 20-57V 输入电压、5V 输出电压高功率评估模块 TPS23756EVM-420 Texas Instruments 开发电路板/EVM
用于 TPS23756 的 33-57V 输入电压、12V 输出电压高功率评估模块 TPS23756EVM-383 Texas Instruments 开发电路板/EVM
TPS23756 评估模块 TPS23756EVM Texas Instruments 开发电路板/EVM