Datasheet Linear Technology LTC4267CDHC#PBF — Ficha de datos

Fabricante	Linear Technology
Serie	LTC4267
Numero de parte	LTC4267CDHC#PBF

Alimentación a través de Ethernet IEEE 802.3af PD Interface con regulador de conmutación integrado

Hojas de datos

PDF, 2.1 Mb, Revisión: C, Archivo subido: oct 25, 2017

Extracto del documento

Precios

Embalaje

Package	5x3 DFN-16
Package Code	DHC
Package Index	05-08-1706

Paramétricos

Number of Channels	1
Demo Boards	DC859A,DC917A,DC1145B,DC804B-A
Design Tools	LTspice Model
Export Control	no
I2C Interface	yes
IEEE-Compliant Classification	One Event
IEEE-Compliant Detection	Yes (Internal 25k resistor)
IEEE-Compliant Disconnection	N/A
Max Power	13 W
Operating Temperature Range	0 to 70 °C
PSE/PD	PD
PoE Type	1

Plan ecológico

RoHS

Obediente

Notas de Diseño

Descargar
Simple Battery Circuit Extends Power over Ethernet (PoE) Peak Current &mdash DN361
PDF, 82 Kb, Archivo publicado: feb 17, 2005
Extracto del documento
Simple Battery Circuit Extends Power over Ethernet (POE)
Peak Current вЂ“ Design Note 361
Mark Gurries
Introduction
Power over Ethernet (PoE) is a new development that allows for the delivery of power to Ethernet-based devices
via standard Ethernet CAT5 cable, precluding the need
for wall adapters or other external power sources. The
PoE speciп¬Ѓcation deп¬Ѓnes a hardware detection protocol
where Power Sourcing Equipment (PSE) is able to identify
PoE Powered Devices (PDs), thus allowing full backwards
compatibility with non-PoE-aware (legacy) Ethernet devices. The PoE speciп¬Ѓcation also sets an upper limit
on the power that can be drawn by a PD. The problem
is: what happens when a PD must draw more power
than allowed by the PoE standard? Examples may be
the spin up of a disk drive or a period of sustained
transmission of data from an RF transmitter. If the
average power load of these applications is less than
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks
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Artículos

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Simplify PoE Implementation with Complete PD Interface and Integrated Switching Regulator &mdash LT Journal
PDF, 188 Kb, Archivo publicado: marzo 25, 2005
Extracto del documento
DESIGN FEATURES Simplify PoE Implementation
with Complete PD Interface and
Integrated Switching Regulator
Introduction
IEEE 802.3af Power over Ethernet
(PoE) is a standard for delivering power
over Cat-5 cables, eliminating the
need for AC-adapters for equipment
plugged into the Ethernet. The two
major components in a PoE system
are Power Sourcing Equipment (PSE),
which deliver power, and Powered Devices (PD), which receive and use the
power. A PSE will not deliver power to
the load unless it detects a valid signature resistance, which distinguishes a
compliant PD from a device that cannot
receive power. Once the PD receives
power, it must also convert the вЂ“48V
PoE efп¬Ѓciently to a suitable power
supply voltage. Typical PD designs
employ two ICs for these tasks. An
obvious way to simplify PD designs
would be to integrate the interface
and DC-DC conversion circuitry into …

Linea modelo

Serie: LTC4267 (8)

LTC4267CDHC#PBF LTC4267CDHC#TRPBF LTC4267CGN#PBF LTC4267CGN#TRPBF LTC4267IDHC#PBF LTC4267IDHC#TRPBF LTC4267IGN#PBF LTC4267IGN#TRPBF

Clasificación del fabricante

Monitor, Control and Protection > Power-over-Ethernet (PoE) Interface Controllers > PoE Powered Device (PD)

Otros nombres:

LTC4267CDHCPBF, LTC4267CDHC PBF

Contactos