以太网供电 (PoE) - STMicroelectronics

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以太网供电（PoE）是一种广泛应用的技术，可通过RJ-45线缆进行功率传输并为受电设备（PD）供电（包括无线接入点、网络电话、甚至LED灯泡），也可以传输数据，具体如IEEE 802.3标准及其演进版本（包括IEEE 802.3bt、IEEE 802.3at和IEEE 802.3af）中所述。

我们的一系列产品提供完整的接口，具备通信标准要求的所有功能，包括检测和分类、以及保护功能（包括欠压锁定（UVLO）和浪涌电流限制）。此外，这些产品可以控制热插拔功率MOSFET，可以大大简化面向受电设备（PD）且符合IEEE 802.3标准的解决方案开发流程。

power over ethernet poe block diagram

Power Over Ethernet ICs

N-channel STripFET

N-channel STripFET

Buck Regulators

PWM peak current mode controller for PoE and telecom systems

Buck Current Regulators for LED

Power Over Ethernet ICs

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应用手册 (5 of 9)

	Resource title		Latest update
PDF	AN4006 Designing a high-efficiency (60 W on 4 pairs) PoE converter using the PM8803 and an external current booster 1.0		13 Sep 2018	13 Sep 2018 AN4006 Designing a high-efficiency (60 W on 4 pairs) PoE converter using the PM8803 and an external current booster 1.0
PDF	AN4275 IEC 61000-4-5 standard overview 1.0		13 Sep 2018	13 Sep 2018 AN4275 IEC 61000-4-5 standard overview 1.0
PDF	AN3373 IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter 1.0		13 Sep 2018	13 Sep 2018 AN3373 IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter 1.0
PDF	AN2783 PM8800 demonstration kit for standard and high power PoE PD interface and power supply, with auxiliary sources 2.1		13 Sep 2018	13 Sep 2018 AN2783 PM8800 demonstration kit for standard and high power PoE PD interface and power supply, with auxiliary sources 2.1
PDF	AN4687 PoE synchronous flyback, IEEE802.3at compliant, 3.3 V - 6 A PD converter based on the PM8803 controller 1.0		13 Sep 2018	13 Sep 2018 AN4687 PoE synchronous flyback, IEEE802.3at compliant, 3.3 V - 6 A PD converter based on the PM8803 controller 1.0
PDF	AN4473 PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller 1.1		13 Sep 2018	13 Sep 2018 AN4473 PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller 1.1
PDF	AN4319 Power over Ethernet - PD converter with 12 V 1 A output, standard IEEE 802.3af compliant 1.0		13 Sep 2018	13 Sep 2018 AN4319 Power over Ethernet - PD converter with 12 V 1 A output, standard IEEE 802.3af compliant 1.0
PDF	AN4377 Power over Ethernet - PD converter with 5 V 2 A output, standard IEEE 802.3af compliant 1.0		13 Sep 2018	13 Sep 2018 AN4377 Power over Ethernet - PD converter with 5 V 2 A output, standard IEEE 802.3af compliant 1.0
PDF	AN4415 Power over Ethernet-PD converter with 3.3 V, 3 A output, standard IEEE 802.3af compliant 1.0		13 Sep 2018	13 Sep 2018 AN4415 Power over Ethernet-PD converter with 3.3 V, 3 A output, standard IEEE 802.3af compliant 1.0

宣传册 (1)

	Resource title		Latest update
PDF	PM8803: Integrated PoE+ PD interface and PWM controller 3.1		21 Jun 2018	21 Jun 2018 PM8803: Integrated PoE+ PD interface and PWM controller 3.1

All tools & software

查找器App

产品型号	状态	描述	类型	供应商
ST Diode Finder	批量生产	用于安卓和iOS的二极管产品查找应用	查找器App	ST
ST Voltage Regulator Finder	批量生产	用于智能手机和平板电脑的线性开关稳压器和电压参考应用	查找器App	ST

ST Diode Finder

描述:

用于安卓和iOS的二极管产品查找应用

ST Voltage Regulator Finder

描述:

用于智能手机和平板电脑的线性开关稳压器和电压参考应用

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