PM8805

批量生产
Design Win Education

具有嵌入式双有源桥的IEEE 802.3bt PoE-PD接口

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产品概述

描述

The PM8805 is a system-in-package for smart power supply of Power over Ethernet (PoE) Powered Devices (PD) and it is applicable for power level up to 99.9 W. It embeds: two active bridges and their driving circuitry, a charge pump to drive the high-side MOSFETs, the hot swap MOSFET and the interface compliant with IEEE 802.3bt.
The device performs the physical layer classification, providing the indication of successful PSE type identification. A 4-pair PSE is identified and the information is available by a dedicated matrix of Tx signals.
The device works with power either from the Ethernet cable or from an external power source such as a wall adapter, with possible prevalence of the auxiliary source with respect to the PoE.
The PM8805 is suitable to build the interface section of PoE switch mode power supplies targeting the highest conversion efficiency. It provides a PGD signal that can be used to enable a PWM controller, a DC-DC converter or an LED driver.
  • 所有功能

    • Dual active bridge, hot swap MOSFETand PoE-PD interface in a system-in-package
    • 100 V N-ch MOSFETs with 0.2 Ω total path resistance for each active bridge.
    • 100 V, 0.1 Ω high-side N-ch hot swap MOSFET
    • PoE-PD single-signature interface compliant with IEEE 802.3bt / at / af
    • Supports 4-pair PoE applications
    • Supports 12 V auxiliary sources
    • Identifies which kind of PSE (standard or legacy) is connected with and provides successful IEEE802.3bt / at / af classification indication as a combination of the T0, T1 and T2 signals (open drain)
    • Smart operational modes
    • Programmable classification current with 3.3 ms delay.
    • Optional Autoclass feature
    • Advanced energy-saving MPS timings
    • Two-step hot swap current protection: DC with 1 ms delay and short-circuit with 10 us delay.
    • Controlled pre-charge of the output capacitor
    • PGD signal (open drain) to enable an external PWM controller.
    • Thermal shutdown protection

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All tools & software

    • 产品型号
      状态
      描述
      类型
      供应商

      STEVAL-POE001V1

      批量生产

      以太网供电(PoE)- 符合IEEE 802.3bt标准的接口参考设计

      电源和功率转换器解决方案评估板 ST
      STEVAL-POE001V1

      描述:

      以太网供电(PoE)- 符合IEEE 802.3bt标准的接口参考设计

      STEVAL-POE002V1

      批量生产

      5V/8A同步反激式转换器,以太网供电(PoE),符合IEEE 802.3bt标准的参考设计

      电源和功率转换器解决方案评估板 ST
      STEVAL-POE002V1

      描述:

      5V/8A同步反激式转换器,以太网供电(PoE),符合IEEE 802.3bt标准的参考设计

      STEVAL-POE003V1

      批量生产

      5V/20A有源钳位正向转换器,以太网供电(PoE),符合IEEE 802.3bt标准的参考设计

      电源和功率转换器解决方案评估板 ST
      STEVAL-POE003V1

      描述:

      5V/20A有源钳位正向转换器,以太网供电(PoE),符合IEEE 802.3bt标准的参考设计

      STEVAL-POE005V1

      批量生产

      12V/8A有源钳位正向转换器,以太网供电(PoE),符合IEEE 802.3bt标准的参考设计

      电源和功率转换器解决方案评估板 ST
      STEVAL-POE005V1

      描述:

      12V/8A有源钳位正向转换器,以太网供电(PoE),符合IEEE 802.3bt标准的参考设计

      STEVAL-POE006V1

      批量生产

      3.3V/20A有源钳位正向转换器,以太网供电(PoE),符合IEEE 802.3bt标准的参考设计

      电源和功率转换器解决方案评估板 ST
      STEVAL-POE006V1

      描述:

      3.3V/20A有源钳位正向转换器,以太网供电(PoE),符合IEEE 802.3bt标准的参考设计

      STEVAL-POEL45W1

      批量生产

      以太网供电(PoE)45 W LED驱动器,具有支持低功耗蓝牙(BLE)的控制器参考设计

      LED和一般照明解决方案评估板 ST
      STEVAL-POEL45W1

      描述:

      以太网供电(PoE)45 W LED驱动器,具有支持低功耗蓝牙(BLE)的控制器参考设计

EDA符号、封装和3D模型

STMicroelectronics - PM8805

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质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
PM8805TR
批量生产
QFN 8x8x1 43L P 0.5 6 Dice pad 工业 Ecopack2

PM8805TR

Package:

QFN 8x8x1 43L P 0.5 6 Dice pad

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

QFN 8x8x1 43L P 0.5 6 Dice pad

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

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产品型号
Order from distributors
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供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
PM8805TR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape and Reel QFN 8x8x1 43L P 0.5 6 Dice pad - - CHINA

PM8805TR 批量生产

封装:
QFN 8x8x1 43L P 0.5 6 Dice pad
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

PM8805TR

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

无法联系到经销商,请联系我们的销售办事处
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(*) 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