概述
样片和购买
解决方案
Documentation
CAD Resources
工具与软件
质量与可靠性
eDesignSuite
开始
Partner products
Sales Briefcase
  • This reference design integrates a high power standard PoE-PD interface compliant with the third generation IEEE 802.3bt PoE standard, able to support applications up to 100 W.

    The PoE-PD interface is based on the PM8805 system in package featuring two embedded active bridges with driving circuitry, a charge pump to drive the high side MOSFETs, a hot swap MOSFET and a standard single-signature interface compliant with IEEE 802.3bt, including detection, classification, UVLO and inrush current limitation.
    The device implements IEEE 802.3bt physical layer classification schemes to signal successful PSE type identification to the system: it identifies a 4-pair PSE by monitoring the Ethernet cable pairs and providing the system with a dedicated matrix of Tx signals.
    The PM8805 is suitable for building the interface for PoE switch mode power supplies for maximum conversion efficiency, with a PGD signal that can be used to enable downstream DC-DC converters or LED drivers with suitable electrical parameters.

    主要特性

    • System in package including a dual active bridge, a hot swap MOSFET and a PoE-PD interface
    • Robust 100V N-ch MOSFETs with 0.2 Ω total path resistance for each active bridge
    • Robust 100 V, 0.1 Ω high side N-ch hot swap MOSFET
    • PoE-PD single-signature interface compliant with IEEE 802.3bt
    • Detection and support of high power, 4-pair applications
    • Identifies which kind of PSE (standard or legacy) it is connected with, and provides successful IEEE 802.3af/at/bt classification indication through combination of the T0, T1 and T2 signals (open drain)
    • Programmable classification current with 3.3 ms delay
    • Advanced energy-saving MPS timings
    • Two step hot swap current protection: DC with 1 ms delay and overload with 10 µs delay
    • Startup phase (pre-charge of the output capacitor), performed using an internally limited current source
    • PGD signal (open drain) to enable an external PWM controller
    • Thermal shutdown protection
    • RoHS compliant
    • WEEE compliant

适合您的资源

相关应用

LED照明和控制

电源和变换器

All tools & software

    • 产品型号
      状态
      描述
      类型
      供应商

      STEVAL-ISA152V1

      批量生产

      基于L7987的3.3 V/3 A高效降压DC-DC转换器(VIN= 4.5 - 60 V)

      电源和功率转换器解决方案评估板 --

      STEVAL-ISA198V1

      批量生产

      基于L7987L的2 A降压DC - DC开关稳压器(VIN = 4.5 V至60 V)

      电源和功率转换器解决方案评估板 ST

      STEVAL-ISA204V1

      批量生产

      基于PM8804的100W 5V/20A有源钳位正向转换器,用于电信系统

      电源和功率转换器解决方案评估板 ST
      STEVAL-ISA152V1

      描述:

      基于L7987的3.3 V/3 A高效降压DC-DC转换器(VIN= 4.5 - 60 V)
      STEVAL-ISA198V1

      描述:

      基于L7987L的2 A降压DC - DC开关稳压器(VIN = 4.5 V至60 V)
      STEVAL-ISA204V1

      描述:

      基于PM8804的100W 5V/20A有源钳位正向转换器,用于电信系统

CAD/EDA Symbols, Footprints and Models

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 WEEE Compliant 材料声明**
STEVAL-POE001V1
批量生产
CARD 工业 Ecopack2 Yes

STEVAL-POE001V1

Package:

CARD

Material Declaration**:

Marketing Status

批量生产

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
核心产品
供货状态
供应商
ECCN (US)
ECCN (EU)
Country of Origin
Board production status
Budgetary Price (US$)*/Qty
STEVAL-POE001V1 Available at 3 distributors

...的经销商可用性STEVAL-POE001V1

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 3 1 马上订购
Newark Element14 AMERICA 2 0 马上订购
Farnell Element14 EUROPE 5 1 马上订购

代理商库存报告日期: 2020-09-29

代理商名称

DIGIKEY

库存

3

Min.Order

1

地区

WORLDWIDE 马上订购

Newark Element14

库存

2

Min.Order

0

地区

AMERICA 马上订购

Farnell Element14

库存

5

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-09-29

PM8805
批量生产
ST EAR99 NEC ITALY - 53.0 / 1

STEVAL-POE001V1

核心产品

PM8805

供货状态

批量生产

Budgetary Price (US$)*/Qty

53.0 / 1

...的经销商可用性STEVAL-POE001V1

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 3 1 马上订购
Newark Element14 AMERICA 2 0 马上订购
Farnell Element14 EUROPE 5 1 马上订购

代理商库存报告日期: 2020-09-29

代理商名称

DIGIKEY

库存

3

Min.Order

1

地区

WORLDWIDE 马上订购

Newark Element14

库存

2

Min.Order

0

地区

AMERICA 马上订购

Farnell Element14

库存

5

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-09-29

供应商

ST

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

53.0 / 1

Country of Origin

ITALY

Board production status

-

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商