5V/20A, active clamp forward converter, Power Over Ethernet (PoE) - IEEE 802.3bt compliant reference design

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  • This reference design represents a PoE Class 8 converter designed for high efficiency conversion over a wide load range. It is based on the PM8805 PoE-PD interface compliant with the IEEE802.3bt standard, and a DC-DC forward active clamp converter driven by the PM8804 PWM controller.

    The PM8805 system on package device embeds two active bridges and an IEEE802.3bt compliant Powered Device (PD) interface. It can be used in all medium-to-high power 2P and 4P high efficiency PoE and PoE+ applications such as point of sales and retail logistics devices.
    The PM8804 PWM controller represents an integrated solution for a smart and efficient 48 V converter, including a programmable oscillator for the switching frequency, adjustable slope compensation, dual complementary low-side drivers with programmable dead time, programmable soft start, soft turn off and a programmable current sense blanking time.

    Key Features

    • Features of PM8805 PoE-PD interface
      • System in package integrating a double active bridge, hot-swap MOSFET and PoE-PD interface
      • PoE-PD single-signature interface compliant with IEEE 802.3bt
      • Detection and support of high power 4-pair applications
      • 100 V N-Ch MOSFETs with 0.2 Ω total path resistance for each active bridge
      • Identifies which kind of PSE (standard or legacy) it is connected to and provides successful IEEE802.3.af/at/bt classification indication through a combination of the T0, T1 and T2 signals (open drain)
      • VFQFPN43 8x8 mm with 6 exposed pads
    • Features of PM8804 PWM controller
      • PWM peak current mode controller
      • Input operating voltage up to 75 V
      • Internal high voltage start up regulator with 20 mA capability
      • Programmable fixed frequency up to 1 MHz
      • Soft start up with settable time
      • Soft turn off (optionally disabled)
      • Dual 1Apk, low side complementary gate drivers
      • GATE2 optionally turned off for reduced consumption
      • 80% maximum duty cycle with internal slope compensation
      • VFQFPN 3.0x3.0x1.0 16L 0.5 mm pitch
    • WEEE compliant
    • RoHS compliant

样片和购买

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STEVAL-POE003V1 PM8804, PM8805
批量生产
153.0 1 EAR99 ITALY - 查看供货情况

Distributor availability ofSTEVAL-POE003V1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
MOUSER WORLDWIDE 5 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now
ANGLIA Live EUROPE 1 1 Order Now

代理商库存报告日期: 2019-11-13

代理商名称

DIGIKEY

库存

5

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

5

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

6

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

1

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-13

立即购买

STEVAL-POE003V1

核心产品

PM8804, PM8805

供货状态

批量生产

单价(US$)

153.0*

Distributor availability ofSTEVAL-POE003V1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
MOUSER WORLDWIDE 5 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now
ANGLIA Live EUROPE 1 1 Order Now

代理商库存报告日期: 2019-11-13

代理商名称

DIGIKEY

库存

5

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

5

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

6

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

1

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-13

单价(US$)

153

数量

1

ECCN (US)

EAR99

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

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技术文档

    • 描述 版本 文档大小 操作
      DB3653
      5V/20A, active clamp forward converter, Power Over Ethernet (PoE) - IEEE 802.3bt compliant reference design
      2.0
      6.05 MB
      PDF
      DB3653

      5V/20A, active clamp forward converter, Power Over Ethernet (PoE) - IEEE 802.3bt compliant reference design

    • 描述 版本 文档大小 操作
      AN5190
      5 V/20 A, active clamp forward converter, Power Over Ethernet (PoE) - IEEE 802.3bt compliant reference design
      2.0
      3.24 MB
      PDF
      AN5190

      5 V/20 A, active clamp forward converter, Power Over Ethernet (PoE) - IEEE 802.3bt compliant reference design

硬件资源

    • 描述 版本 文档大小 操作
      STEVAL-POE003V1 GERBER 1.0
      309.24 KB
      ZIP

      STEVAL-POE003V1 GERBER

    • 描述 版本 文档大小 操作
      STEVAL-POE003V1 BOM 1.0
      81.94 KB
      PDF

      STEVAL-POE003V1 BOM

    • 描述 版本 文档大小 操作
      STEVAL-POE003V1 SCHEMATIC 1.0
      1.18 MB
      PDF

      STEVAL-POE003V1 SCHEMATIC

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

法律

    • 描述 版本 文档大小 操作
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

产品型号 供货状态 封装 等级规格 符合RoHS级别 WEEE Compliant Material Declaration**
STEVAL-POE003V1
批量生产
CARD 工业 Ecopack2 Yes

STEVAL-POE003V1

Package:

CARD

Material Declaration**:

Marketing Status

批量生产

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.