Datasheet Linear Technology LT4275AIDD#PBF — Ficha de datos

Fabricante	Linear Technology
Serie	LT4275
Numero de parte	LT4275AIDD#PBF

Controlador LTPoE ++ / PoE + / PoE PD

Hojas de datos

PDF, 222 Kb, Archivo subido: oct 25, 2017

Extracto del documento

Precios

Embalaje

Package	3x3 DFN-10
Package Code	DD
Package Index	05-08-1699

Paramétricos

Number of Channels	1
Demo Boards	DC2093A-A,DC2093A-B,DC2093A-C,DC2125A
Design Tools	LTspice Model
Export Control	no
IEEE-Compliant Classification	One Event, Two Event
IEEE-Compliant Detection	Yes (Internal 25k resistor)
IEEE-Compliant Disconnection	N/A
Max Power	90 W
Operating Temperature Range	-40 to 85 °C
PSE/PD	PD
PoE Type	1, 2, LTPoE++

Plan ecológico

RoHS

Obediente

Notas de Diseño

Descargar
Active Bridge Rectifiers Reduce Heat Dissipation within PoE Security Cameras &mdash DN519
PDF, 106 Kb, Archivo publicado: agosto 28, 2013
Extracto del documento
Active Bridge Rectifiers Reduce Heat Dissipation within PoE
Security Cameras вЂ“ Design Note 519
Ryan Huff
Introduction
Power over Ethernet (PoE) has been embraced by the
video surveillance industry as a solution to an age-old
problem: complicated cabling. For instance, a basic,
traditional fixed-view security camera requires two
cables: one for power (10W to 15W from a 24V AC
or 12V DC), and a separate, coax cable for the video
signal. With PoE, a single Ethernet cable carries both
video data and power. Everything is simplified. Right?
Not quite. To meet compatibility with existing systems,
camera manufacturers must produce PoE-enabled
cameras that are also compatible with legacy power
sourcesвЂ”they must accept PoE 37V to 57V DC from
an RJ-45 jack or 24V AC, +12V DC, or вЂ“12V DC from
an auxiliary power connector.
The Old Way Loses Power
Figure 1 shows the power architecture used by many
PoE camera manufacturers to solve this problem. A
full-bridge diode rectifier after the auxiliary (old-school)
input produces positive DC power from either 24V AC, …

Linea modelo

Serie: LT4275 (24)

LT4275AHDD#PBF LT4275AHDD#TRPBF LT4275AHMS#PBF LT4275AHMS#TRPBF LT4275AIDD#PBF LT4275AIDD#TRPBF LT4275AIMS#PBF LT4275AIMS#TRPBF LT4275BHDD#PBF LT4275BHDD#TRPBF LT4275BHMS#PBF LT4275BHMS#TRPBF LT4275BIDD#PBF LT4275BIDD#TRPBF LT4275BIMS#PBF LT4275BIMS#TRPBF LT4275CHDD#PBF LT4275CHDD#TRPBF LT4275CHMS#PBF LT4275CHMS#TRPBF LT4275CIDD#PBF LT4275CIDD#TRPBF LT4275CIMS#PBF LT4275CIMS#TRPBF

Clasificación del fabricante

Monitor, Control and Protection > Power-over-Ethernet (PoE) Interface Controllers > PoE Powered Device (PD)
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Power Management

Otros nombres:

LT4275AIDDPBF, LT4275AIDD PBF

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