SI3454 datasheet(2/57 Pages) SILABS

Nome de Peças	SI3454

Descrição Electrónicos	QUAD IEEE 802.3AT POE PSE CONTROLLER

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Fabricante Electrônico	SILABS [Silicon Laboratories]

Página de início	http://www.silabs.com

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Si3454

2

Rev. 1.1

Functional Block Diagrams

DC-DC Converter Block Diagram

VDDA

VDD

VDRAINn

Rsn

DRAINn

Measure

AMUX

PGA

Drive

Control

HV

SIO

Temp

Sensor

AMUX

SPI

SRAM

POR

WDT

50MHz

TIMERS

SCL

SDAO

INT

RESET

SDAI

SHDN

Gate

Drive Xn

Detect Xn (/4)

MCU

HVIO

10 Bit

500Khz

Detect

Drive

Gate

Drive

GATEn

SENSEn

Bandgap

C8051

MCU Core

OTP

r

ADC

n

0.25



n

VDD (+3.3V)

Detection MUX

n

KSENSx

VPWR

(+52V)

DGND

Measure

n

(NOTE: Only one port shown)

DC-DC

Controller

CAP

SWO

A0

A2

A3

A1

AGND

DCEN

AUTO

ISENSE

VPWR

CAP

SWO

AGND

DCEN

Regulator 4.3V

3.3V

VDDA

The case shown has both the DC-DC converter and series regulator enabled.

To enable ONLY the series regulator, tie SWO to VPWR. External components are unnecessary.

ISENSE

Nº de peça semelhante - SI3454

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Descrição semelhante - SI3454

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Skyworks Solutions Inc.	SI3454	1Mb / 57P	QUAD IEEE 802.3AT POE PSE CONTROLLER Rev. 1.1
Silicon Laboratories	SI3459	1Mb / 57P	OCTAL IEEE 802.3AT POE PSE CONTROLLER
Maxim Integrated Produc...	MAX5980	3Mb / 49P	Quad, IEEE 802.3at/af PSE Controller Rev 1; 9/11
List of Unclassifed Man...	SI3462-E01	226Kb / 24P	SINGLE-PORT IEEE 802.3AT POE/POE PSE INTERFACE
Texas Instruments	TPS23851	1Mb / 62P	[Old version datasheet] Quad IEEE 802.3at Power-Over-Ethernet PSE Controller
Skyworks Solutions Inc.	SI3462	814Kb / 24P	SINGLE-PORT IEEE 802.3AT POE/POE PSE INTERFACE Rev. 1.0
Silicon Laboratories	SI3461	207Kb / 24P	SINGLE-PORT IEEE 802.3AT POE/POE PSE INTERFACE
Silicon Laboratories	SI3462	1Mb / 24P	SINGLE-PORT IEEE 802.3AT POE/POE PSE INTERFACE
Maxim Integrated Produc...	MAX5980A	2Mb / 50P	Quad, IEEE 802.3at/af PSE Controller for Power-over-Ethernet 19-7422; Rev 1; 4/15
Linear Technology	LTC4266A	374Kb / 30P	Quad PoE/PoE/LTPoE PSE Controller

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SI3454 Folha de dados(PDF) 2 Page - Silicon Laboratories

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