PM8801 datasheet(1/37 Pages) STMICROELECTRONICS

Numer części	PM8801

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

PDF	37 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

Logo

1 / 37 page

This is information on a product in full production.

July 2013

DocID018560 Rev 2

1/37

37

PM8801

High-efficiency, IEEE 802.3at compliant, integrated PoE-PD

interface and PWM controller

Datasheet

- production data

Features

• 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

• Sleep mode with LED indicator and Maintain

Power Signature (MPS)

• Precise DC current limit set at 640 mA typ.

• Integrated high-voltage startup 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

Applications

• VoIP phones, WLAN AP

• WiMAX CPEs

• Security cameras

• PoE/PoE+ Powered device appliances

Description

The PM8801 integrates a standard compliant

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 incorporates all the

functions required by the IEEE 802.3at including

detection, classification, undervoltage lockout

(UVLO) and inrush current limitation.

The PM8801 specifically performs IEEE802.3at

Layer1 hardware classification, providing an

indication of type 2 PSE successful detection to

the rest of the system.

The PM8801 has been designed to work with

power either from the Ethernet cable connection

or from an external power source such as a wall

adapter, ensuring prevalence of the auxiliary

source with respect to the PoE interface.

The DC/DC section of the PM8801 features a

programmable oscillator frequency, an adjustable

slope compensation, dual complementary low-

side drivers with programmable delay time and

internal temperature sensor.

The PM8801 targets high-efficiency conversion at

all load conditions supporting flyback, forward,

forward active clamp and synchronous

rectification.

HTSSOP24

Table 1. Device summary

Part number

Package

Packing

PM8801

HTSSOP24

Tube

PM8801TR

Tape and reel

www.st.com

Podobny numer części - PM8801

Producent	Numer części	Arkusz danych	Szczegółowy opis
General Electric Compan...	PM880	248Kb / 4P	PM880 Panametrics Portable Hygrometer 2013
Baker Hughes Company	PM880	1Mb / 3P	Panametrics portable hygrometer 12/2020
STMicroelectronics	PM8800	216Kb / 10P	Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller with support of external source 17-Sep-2007
	PM8800A	216Kb / 10P	Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller with support of external source 17-Sep-2007
	PM8800A	556Kb / 35P	Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller with support of external source 20-Feb-2008

More results

Podobny opis - PM8801

Producent	Numer części	Arkusz danych	Szczegółowy opis
ON Semiconductor	NCP1090	176Kb / 12P	Integrated IEEE 802.3af PoE-PD Interface Controller February, 2011 ??Rev. 2
Texas Instruments	TPS2378	494Kb / 25P	IEEE 802.3at PoE High-Power PD Interface
ON Semiconductor	NCP1092DG	176Kb / 12P	Integrated IEEE 802.3af PoE-PD Interface Controller February, 2011 ??Rev. 2
STMicroelectronics	PM8803TR	836Kb / 34P	High-efficiency, IEEE 802.3at compliant integrated PoE-PD interface and PWM controller 07-Nov-2012
ON Semiconductor	NCP1092DBRG	176Kb / 12P	Integrated IEEE 802.3af PoE-PD Interface Controller February, 2011 ??Rev. 2
	NCP1091DBRG	176Kb / 12P	Integrated IEEE 802.3af PoE-PD Interface Controller February, 2011 ??Rev. 2
	NCP1090DBRG	176Kb / 12P	Integrated IEEE 802.3af PoE-PD Interface Controller February, 2011 ??Rev. 2
	NCP1093	195Kb / 12P	Integrated IEEE 802.3at PoE-PD Interface Controller March, 2014 ??Rev. 2
STMicroelectronics	STEVAL-TSP009V2	311Kb / 7P	IEEE 802.3at compliant PD interface 24-Apr-2015
Kinetic Technologies.	KTA1137A	980Kb / 22P	IEEE 802.3at PoE PD with Integrated DC-DC Controller November 2019 - Revision 04a

More results

PM8801 Arkusz danych(PDF) 1 Page - STMicroelectronics

PM8801 Arkusz danych(HTML) 1 Page - STMicroelectronics

Podobny numer części - PM8801

Podobny opis - PM8801

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37

Arkusz danych Pobierz

Link URL