PM8803

批量生产

High efficiency integrated IEEE 802.3at PoE-PD interface and PWM controller type 2 PSE indicator, plus support for forward active clamp topology

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  • The PM8803 integrates a Power over Ethernet (PoE) interface and a current mode PWM controller to simplify the design of the power supply sections of all powered devices. The PoE/PoE+ interface includes all functions required by the IEEE 802.3at as well as detection, classification, undervoltage lockout (UVLO) and inrush current limitation.

    The PM8803 specifically performs IEEE802.3at Layer 1 hardware classification, providing the system with an indication of Type 2 PSE successful detection.
    The PM8803 has been designed to work with power either from the Ethernet cable or from an external power source such as a wall adapter, ensuring the priority of the auxiliary source over the PoE. The DC-DC section of the PM8803 features a programmable oscillator frequency, an adjustable slope compensation, dual complementary low-side drivers, programmable dead time and an internal temperature sensor.
    The PM8803 targets high-efficiency conversion under all load conditions supporting flyback, forward, forward with active clamp converters and synchronous rectification.

    主要特性

    • IEEE 802.3at compliant PD interface
    • Works with power supplied from Ethernet LAN cables or from local auxiliary sources
    • Successful IEEE802.3at Layer1 classification indicator
    • Integrated 100 V, 0.45 Ω, 1 A hot-swap MOSFET
    • Accurate 140 mA typ. inrush current level
    • Programmable classification current
    • Programmable DC current limit up to 1 A
    • Integrated high voltage start-up bias regulator
    • Thermal shutdown protection
    • Current mode pulse width modulator
    • Programmable oscillator frequency
    • 80% maximum duty cycle with internal slope compensation
    • Support for flyback, forward, forward active clamp, flyback with synchronous rectification

样片和购买

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从ST订购
PM8803TR HTSSOP20 Tape And Reel
批⁠量⁠生⁠产
1.2202 1000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofPM8803TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2103 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 1981 1 Order Now

代理商库存报告日期: 2020-02-26

代理商名称

DIGIKEY

库存

2103

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

2500

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

1981

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2020-02-26

获取样片
PM8803 HTSSOP20 Tube
批⁠量⁠生⁠产
1.2202 1000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofPM8803

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 1420 1 Order Now

代理商库存报告日期: 2020-02-26

代理商名称

MOUSER

库存

1420

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2020-02-26

立即购买

PM8803TR

封装

HTSSOP20

包装类型

Tape And Reel

单价(US$)

1.2202*

Distributor availability ofPM8803TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2103 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 1981 1 Order Now

代理商库存报告日期: 2020-02-26

代理商名称

DIGIKEY

库存

2103

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

2500

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

1981

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2020-02-26

供货状态

批⁠量⁠生⁠产

单价(US$)

1.2202

数量

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

PM8803

封装

HTSSOP20

包装类型

Tube

单价(US$)

1.2202*

Distributor availability ofPM8803

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 1420 1 Order Now

代理商库存报告日期: 2020-02-26

代理商名称

MOUSER

库存

1420

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2020-02-26

供货状态

批⁠量⁠生⁠产

单价(US$)

1.2202

数量

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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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    • 产品型号

      5 V/4 A, synchronous flyback converter, Power Over Ethernet (PoE) - IEEE 802.3at compliant reference design

      3.3 V/6 A, synchronous flyback converter, Power Over Ethernet (PoE) - IEEE 802.3at compliant reference design

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS7139
      High-efficiency, IEEE 802.3at compliant integrated PoE-PD interface and PWM controller
      3.0
      1.36 MB
      PDF
      DS7139

      High-efficiency, IEEE 802.3at compliant integrated PoE-PD interface and PWM controller

    • 描述 版本 文档大小 操作
      AN4006
      Designing a high-efficiency (60 W on 4 pairs) PoE converter using the PM8803 and an external current booster
      1.0
      3.11 MB
      PDF
      AN3373
      IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter
      1.0
      1.23 MB
      PDF
      AN3387
      PM8803 layout guidelines
      1.0
      944.44 KB
      PDF
      AN4473
      PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller
      1.1
      2.61 MB
      PDF
      AN4006

      Designing a high-efficiency (60 W on 4 pairs) PoE converter using the PM8803 and an external current booster

      AN3373

      IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter

      AN3387

      PM8803 layout guidelines

      AN4473

      PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller

    • 描述 版本 文档大小 操作
      AN4687
      PoE synchronous flyback, IEEE802.3at compliant, 3.3 V - 6 A PD converter based on the PM8803 controller
      1.0
      2.46 MB
      PDF
      AN4473
      PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller
      1.1
      2.61 MB
      PDF
      AN4687

      PoE synchronous flyback, IEEE802.3at compliant, 3.3 V - 6 A PD converter based on the PM8803 controller

      AN4473

      PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      PM8803: Integrated PoE+ PD interface and PWM controller 3.1
      216.44 KB
      PDF

      PM8803: Integrated PoE+ PD interface and PWM controller

    • 描述 版本 文档大小 操作
      Power Management Guide 06.2019
      4.89 MB
      PDF

      Power Management Guide

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
PM8803
批量生产
HTSSOP20 Industrial Ecopack2
PM8803TR
批量生产
HTSSOP20 Industrial Ecopack2

PM8803

Package:

HTSSOP20

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

HTSSOP20

Grade

Industrial

RoHS Compliance Grade

Ecopack2

PM8803TR

Package:

HTSSOP20

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

HTSSOP20

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

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