Datasheet Linear Technology LTC4270

Manufacturer	Linear Technology
Series	LTC4270

12-Port PoE/PoE+/LTPoE++ PSE Controller

Datasheets

PDF, 408 Kb, Revision: D, File uploaded: Oct 25, 2017

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Prices

Packaging

	LTC4270AIUKG#PBF	LTC4270AIUKG#TRPBF	LTC4270BIUKG#PBF	LTC4270BIUKG#TRPBF	LTC4270CIUKG#PBF	LTC4270CIUKG#TRPBF
N	1	2	3	4	5	6
Package	7x8 QFN-52 Package Outline Drawing	7x8 QFN-52 Package Outline Drawing	7x8 QFN-52 Package Outline Drawing	7x8 QFN-52 Package Outline Drawing	7x8 QFN-52 Package Outline Drawing	7x8 QFN-52 Package Outline Drawing
Package Code	UKG	UKG	UKG	UKG	UKG	UKG
Package Index	05-08-1729	05-08-1729	05-08-1729	05-08-1729	05-08-1729	05-08-1729
Pin Count	52	52	52	52	52	52

Parametrics

Parameters / Models	LTC4270AIUKG#PBF	LTC4270AIUKG#TRPBF	LTC4270BIUKG#PBF	LTC4270BIUKG#TRPBF	LTC4270CIUKG#PBF	LTC4270CIUKG#TRPBF
Number of Channels	12	12	12	12	12	12
Demo Boards	DC1840C	DC1840C	DC1840C	DC1840C	DC1840C	DC1840C
Export Control	no	no	no	no	no	no
I2C Interface	yes	yes	yes	yes	yes	yes
IEEE-Compliant Classification	One Event, Two Event, LTPoE++	One Event, Two Event, LTPoE++	One Event, Two Event, LTPoE++	One Event, Two Event, LTPoE++	One Event, Two Event, LTPoE++	One Event, Two Event, LTPoE++
IEEE-Compliant Detection	4-Point	4-Point	4-Point	4-Point	4-Point	4-Point
IEEE-Compliant Disconnection	DC	DC	DC	DC	DC	DC
Max Power, W	90	90	90	90	90	90
Operating Temperature Range, °C	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
PSE/PD	PSE	PSE	PSE	PSE	PSE	PSE
PoE Type	1, 2, LTPoE++	1, 2, LTPoE++	1, 2, LTPoE++	1, 2, LTPoE++	1, 2, LTPoE++	1, 2, LTPoE++
Subname	LTC4270	LTC4270	LTC4270	LTC4270	LTC4270	LTC4270

Eco Plan

	LTC4270AIUKG#PBF	LTC4270AIUKG#TRPBF	LTC4270BIUKG#PBF	LTC4270BIUKG#TRPBF	LTC4270CIUKG#PBF	LTC4270CIUKG#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Articles

Download
LTPoE++ Extends PoE to 90W with Reliable and Easy-to-Use Standard &mdash LT Journal
PDF, 1.1 Mb, File published: Jul 15, 2011
Extract from the document
July 2011 I N T H I S I S S U E RS485 and RS232
transceivers combined in a
single device 12 Volume 21 Number 2 LTPoE++ Extends PoE to 90W with
Reliable and Easy-to-Use Standard
Heath Stewart fast-acting IC protects
sensitive circuits from
overvoltage and reverse
supply connections 23 microprocessor power
supply works with FET
drivers, DrMOS and power
blocks 26 В±5V split-voltage power
supply for analog circuits
40 Power over Ethernet, or PoE, is an increasingly popular
way to deliver both power and data over existing Ethernet
cable, thus freeing applications from the constraint of
AC-power proximity. As the number PoE solutions has
grown so has the applicationsвЂ™ appetite for power.
A new proprietary standard, LTPoE++в„ў, satisfies this hunger
by extending the PoE and PoE+ specifications to 90W of PD
delivered power. LTPoE++ also dramatically reduces engineering
complexity in power sourcing equipment (PSEs) and powered
devices (PDs) when compared to other power-expansion solutions.
Plug-and-play simplicity and safe, robust …

Model Line

Series: LTC4270 (6)

LTC4270AIUKG#PBF LTC4270AIUKG#TRPBF LTC4270BIUKG#PBF LTC4270BIUKG#TRPBF LTC4270CIUKG#PBF LTC4270CIUKG#TRPBF

Manufacturer's Classification

Monitor, Control and Protection > Power-over-Ethernet (PoE) Interface Controllers > PoE Power Sourcing Equipment (PSE)

EMS supplier

Slices

Microcontrollers