Datasheet Linear Technology LTC4265IDE#PBF — Даташит

Производитель	Linear Technology
Серия	LTC4265
Модель	LTC4265IDE#PBF

IEEE 802.3 at High Power PD Interface Controller with 2-Event Classification Recognition

Datasheets

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PDF, 305 Кб, Версия: B, Файл закачен: 25 окт 2017

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Цены

Купить LTC4265IDE#PBF на РадиоЛоцман.Цены — от 79 до 1 135 ₽ 31 предложений от 21 поставщиков LINEAR TECHNOLOGY LTC4265IDE#PBF Power Over Ethernet (POE) Controller, 60V/1.35mA, 30V UVLO Threshold, DFN-12
ЗУМ-СМД Россия	LTC4265IDE#PBF Linear Technology	79 ₽
Триема Россия	LTC4265IDE#PBF	179 ₽
ChipWorker Весь мир	LTC4265IDE#TRPBF Analog Devices	193 ₽
Океан Электроники Россия	LTC4265IDE#TRPBF Linear Technology	по запросу

Критерии выбора литиевых аккумуляторов и батареек: что необходимо учитывать разработчикам

Корпус / Упаковка / Маркировка

Корпус	4x3 DFN-12
Код корпуса	DE/UE
Индекс корпуса	05-08-1695

Параметры

Количество каналов	1
Demo Boards	DC1415A
Design Tools	LTspice Model
Экспортный контроль	нет
I2C Interface	нет
IEEE-Compliant Classification	One Event, Two Event
IEEE-Compliant Detection	Yes (Internal 25k resistor)
IEEE-Compliant Disconnection	N/A
Max Power	25.5 W
Рабочий диапазон температур	от -40 до 85 °C
PSE/PD	PD
PoE Type	2

Экологический статус

RoHS

Совместим

Статьи

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PD Interface for PoE+ Includes 25.5W Classification and Protection Features in a Low Profile 4mm × 3mm DFN &mdash LT Journal
PDF, 616 Кб, Файл опубликован: 1 янв 2009
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LвЂ‰DESIGN FEATURES PD Interface for PoE+ Includes 25.5W
Classification and Protection Features
in a Low Profile 4mm Г— 3mm DFN
by Kirk Su Introduction Overview of the Third Generation
Power over Ethernet System (PoE+) The Power over Ethernet (PoE) standard specifies how DC power can be
distributed alongside high speed data through a single RJ45 connector. The
second generation standard (IEEE 802.3af) allows Powered Devices (PDs) to
draw 12.95W from Power Sourcing Equipment (PSEs). The popularity of the
standard has PD equipment vendors running up against the 12.95W power
limit. To answer the call for more power, the newer IEEE 802.3at standard
(also called PoE+) establishes a high power allocation while maintaining
compatibility with the existing IEEE 802.3af systems.
In the new standard, PSEs and PDs are distinguished as Type-1 if they
comply with the IEEE 802.3af power levels, or Type-2 if they comply with
the IEEE 802.3at power levels. The maximum available power to a Type-2
PD is 25.5W.
The IEEE 802.3at standard also establishes a new method for Type-2
equipment to mutually identify each other while maintaining compatibility
with the existing PoE systems. A Type-2 PSE has the option of declaring
the presence of high power by performing 2-event classification (Layer 1)
or by communicating with the PD over the data line (Layer 2). In turn, a
Type-2 PD must recognize both layers of communications and identify a
Type-2 PSE before beginning 25.5W operations. L …

Модельный ряд

Серия: LTC4265 (4)

LTC4265CDE#PBF LTC4265CDE#TRPBF LTC4265IDE#PBF LTC4265IDE#TRPBF

Классификация производителя

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

Варианты написания:

LTC4265IDEPBF, LTC4265IDE PBF