Power over Ethernet (PoE)

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Power over Ethernet (PoE) is a widely adopted technology used to transfer power and supply the powered device (PD) including wireless access points, VoIP phones and even LED bulbs over an RJ-45 cable also carrying data as described in the IEEE 802.3 standard and its evolutions including IEEE 802.3bt, IEEE 802.3at and IEEE 802.3af.

We provide a range of products providing a complete interface with all the functions required by the communication standard including detection and classification as well as protection features including under-voltage lockout (UVLO) and in-rush current limitation. In addition, these products can control Hot-swap power MOSFETs that can greatly simplify the development of IEEE 802.3 compliant solutions for powered devices (PD).

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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Application Notes (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

Flyers (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

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