LTC4296-1

推荐用于新设计

5端口SPoE PSE控制器

数据手册 (Rev. A) 产品选型表
产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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概述

  • 符合 IEEE 802.3cg 标准的 SPoE PSE
  • 五个独立的 PSE 端口
  • 宽输入电源工作范围：6 V 至 60 V
  • 可调电源和返回电子断路器
  • 在睡眠和禁用状态下，输入电源电流分别为 52 μA（典型值）和 51μA（典型值）
  • 电荷泵增强了外部高端 N 沟道 MOSFET
  • 通过外部微控制器支持 SCCP
  • 带 PEC 的 SPI 总线接口
  • 电压、电流和温度遥测
  • 每端口电源良好的比较器
  • PD 休眠、唤醒、唤醒转发支持
  • 采用 48 引脚 7 mm × 7mm QFN 封装

LTC4296-1是一款符合IEEE 802.3cg标准的五端口、单对以太网供电(SPoE)供电设备(PSE)控制器。SPoE通过单对电缆提供标准化电源和以太网数据，简化了系统设计和安装。LTC4296-1专为与24 V或54 V系统中的802.3cg受电设备(PD)的互操作性而设计。LTC4296-1使用外部低漏极至源极导通电阻(RDS(ON))、N沟道金属氧化物半导体场效应晶体管(MOSFET)供电，可最大限度地减少压降，并确保应用程序的坚固性。

具有折返、模拟限流值(ACL)的高端断路器提供受控浪涌和短路保护。可选的低端断路器可保护负输出免受反馈故障和非隔离应用中的接地故障的影响。通过串行通信分类协议(SCCP)进行PD分类，并保持全电压特征(MFVS)，可确保仅在存在PD时才将全工作电压施加到电缆。SWx引脚在检测和分类期间断开端口电源缓冲器。支持PD启动的睡眠和唤醒。WAKEUP引脚支持唤醒转发。遥测、状态和软件控制功能可通过具有数据包错误代码(PEC)保护功能的串行外设接口(SPI)总线接口访问。

LTC4296-1为10BASE-T1L控制器和开关提供了通用的SPoE、PSE解决方案，并且可以很容易地与ADI公司的10BASE-T1L收发器产品系列集成，例如ADIN1100（物理层，PHY）、ADIN1110(MACPHY)和ADIN2111（双端口开关）。

应用

  • 运营技术(OT)系统
  • 楼宇和工厂自动化系统
  • 现场仪表和开关
  • 安保系统
  • 交通控制系统
LTC4296-1
5端口SPoE PSE控制器
LTC4296-1 Application Circuit LTC4296-1 Pin Configuration LTC4296-1 Chip Image
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参考资料

数据手册 1

用户手册 3

技术文章 2

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评估套件

eval board
schematic 1
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schematic 3
EVAL-SPoE-KIT-AZ

SPoE 评估套件

立即购买 更多内容

产品详情

EVAL-SPoE-KIT-AZ 是一款 IEEE 802.3cg、单对、以太网供电 (SPoE) 评估套件。该套件具有 LTC4296-1、五端口 SPoE 供电设备 (PSE) 控制器和 LTC9111、SPoE 受电设备 (PD)，用于评估 IEEE 802.3cg 10 至 15 类 SPoE 电源。ADIN1100、10BASE-T1L PHY 提供系统以太网数据。

eval board
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DEMO-ADIN1100D2Z

10BASE-T to 10BASE-T1L Media Converter Including SPoE/APL, Featuring ADIN1100 and ADIN1200 Ethernet PHYs and LTC4296-1 PSE Controller

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特性和优点

  • 10BASE-T to 10BASE-T1L media converter
  • SPoE PSE controller compatible with IEEE 802.3cg
  • Power source for APL devices
  • System level diagnostics over USB COM port

产品详情

The DEMO-ADIN1100D2Z is a media converter board that provides connection between a standard 10BASE-T RJ45 Ethernet port and a 10BASE-T1L device.

The DEMO-ADIN1100D2Z includes a power sourcing equipment (PSE) controller and it can power the connected 10BASE-T1L or advanced physical layer (APL) device. The PSE controller is configurable for power over data line (PoDL)/single pair power over Ethernet (SPoE) power Class 10, Class 11, Class 12, Class 13, Class 14, and Class 15, and APL power Class A, Class C, and Class 3.

The board requires an external DC power supply with output voltage and maximum output current relevant to the selected power class. For a subset of power classes (Class 10, APL A, and APL C), the board can also be powered from a USB host.

The board requires a minor modification and external power coupling inductors when used for the highest power Class 15 and APL 3.

The DEMO-ADIN1100D2Z can be used as an autonomous device, configurable by a set of switches and jumpers, indicating its status on LEDs.

The DEMO-ADIN1100D2Z can also be connected via USB to a host PC. The 10BASE-T1L link status, power status, and diagnostics are then accessible using a simple set of text commands and messages exchanged over the USB COM port interface using a serial terminal software on a PC.

eval board
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EVAL-10BT1L-MCS

EVAL-10BT1L-MCS IEEE 802.3cg SPoE Shield

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特性和优点

  • Injects or receives power from the IEEE 802.3cg-compliant SPoE cable
  • 10BASE-TX to 10BASE-T1L data conversion

产品详情

The EVAL-10BT1L-MCS is a 10BASE-TX, traditional 4-pair Ethernet, to 10BASE-T1L single-pair power over Ethernet (SPoE) media converter shield (MCS) that is compatible with SPoE power sourcing equipment (PSE) and powered device (PD) evaluation motherboards.

The EVAL-10BT1L-MCS-AZ shield power coupling network is suited for Class 10 through Class 14 power levels. The EVAL-10BT1LMCS- BZ shield power coupling network is suited for the higher power levels of Class 15 while compatible with Class 10 through Class 14. In the context of a PSE, the power coupling network allows for power to be coupled on the single pair Ethernet lines. Regarding the PD, the power coupling network extracts power from the combined power and data line.

The shield includes the ADIN1100, 10BASE-T1L PHY, and the ADIN1200, 10BASE-TX PHY, which provide the Ethernet data media conversion in the system. The on-board LT8301, isolated flyback converter, provides an isolated 3.3V power source to the PHYs.
EVAL-SPoE-KIT-AZ
SPoE 评估套件
EVAL-SPoE-KIT-AZ Evaluation Board EVAL-SPoE-KIT-AZ Evaluation Board - Top View EVAL-SPoE-KIT-AZ Evaluation Board - Bottom View
DEMO-ADIN1100D2Z
10BASE-T to 10BASE-T1L Media Converter Including SPoE/APL, Featuring ADIN1100 and ADIN1200 Ethernet PHYs and LTC4296-1 PSE Controller
DEMO-ADIN1100D2Z Board Photo Angle View DEMO-ADIN1100D2Z Board Photo Top View DEMO-ADIN1100D2Z Board Photo Bottom View
EVAL-10BT1L-MCS
EVAL-10BT1L-MCS IEEE 802.3cg SPoE Shield
EVAL-10BT1L-SMC-AZ Angle evaluation board EVAL-10BT1L-SMC-AZ Top evaluation board EVAL-10BT1L-SMC-AZ Bottom evaluation board EVAL-10BT1L-SMC-BZ Angle evaluation board EVAL-10BT1L-SMC-BZ Top evaluation board EVAL-10BT1L-SMC-BZ Bottom evaluation board

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