Datasheet > LTC4266AIUHF-3#TRPBF

LTC4266AIUHF-3#TRPBF

更新时间： 2024-09-12 20:00:15

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
32页	374K
描述
LTC4266A/LTC4266C - Quad PoE/PoE+/LTPoE++ PSE Controller; Package: QFN; Pins: 38; Temperature Range: -40°C to 85°C

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LTC4266AIUHF-3#TRPBF 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
零件包装代码：	QFN	包装说明：	QCCN, LCC38,.2X.28,20
针数：	38	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.15	模拟集成电路 - 其他类型：	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：	R-PQCC-N38	JESD-609代码：	e3
湿度敏感等级：	1	端子数量：	38
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCN
封装等效代码：	LCC38,.2X.28,20	封装形状：	RECTANGULAR
封装形式：	CHIP CARRIER	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	3.3,54 V	认证状态：	Not Qualified
子类别：	Power Management Circuits	最大供电电流 (Isup)：	5 mA
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
Base Number Matches：	1

LTC4266AIUHF-3#TRPBF 数据手册

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LTC4266A/LTC4266C

Quad PoE/PoE /LTPoE

PSE Controller

FeAtures

Description

Four Independent PSE Channels

The LTC^®4266A is a quad power sourcing equipment (PSE)

controller capable of delivering up to 90W of LTPoE

Compliant with IEEE 802.3at Type 1 and 2

power to a compatible LTPoE powered device (PD). A

Low Power Dissipation

proprietary detection/classification scheme allows mutual

0.25Ω Sense Resistance Per Channel

identification between a LTPoE PSE and LTPoE PD

while remaining compatible and interoperable with exist-

ing Type 1 (13W) and Type 2 (25.5W) PDs. The LTC4266A

feature set is a superset of the popular LTC4266. These

Very High Reliability 4-Point PD Detection

2-Point Forced Voltage

2-Point Forced Current

High Capacitance Legacy Device Detection

PSE controllers feature low R external MOSFETs and

1MHz I C Compatible Serial Control Interface

0.25Ω sense resistors which are especially important at

Midspan Backoff Timer

the LTPoE current levels to maintain the lowest possible

Supports 2-Pair and 4-Pair Output Power

heat dissipation.

Available in Multiple Power Grades

++™

LTC4266A-1: LTPoE

38.7W

The LTC4266C targets fully automatic PSE systems pow-

ering Type 1 (up to 13W) PDs.

LTC4266A-2: LTPoE 52.7W

LTC4266A-3: LTPoE 70W

Advanced power management features include: 14-bit

current monitoring ADCs, DAC-programmable current

limit, and versatile quick shutdown of preselected ports.

Advanced power management host software is available

under a no-cost license. PD discovery uses a proprietary

dual-mode 4-point detection mechanism ensuring excel-

lent immunity from false PD detection. The LTC4266

LTC4266A-4: LTPoE 90W

LTC4266C: PoE 13W

Available in 38-Lead 5mm × 7mm QFN Package

ApplicAtions

LTPoE PSE Switches/Routers

includes an I C serial interface operable up to 1MHz.

LTPoE PSE Midspans

IEEE 802.3at Type 1 PSE Switches/Routers

IEEE 802.3at Type 1 PSE Midspans

The LTC4266 is available in multiple power grades allow-

ing delivered PD power of 13W, 25.5W, 38.7W, 52.7W,

70W and 90W. These controllers are available in a 38-lead

5mm × 7mm QFN package.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

LTPoE and ThinSOT are trademarks of Analog Devices, Inc. All other trademarks are the

property of their respective owners.

typicAl ApplicAtion

Complete 4-Port Ethernet High Power Source

10Ω

AD0 AD1 AD2 AD3 SHDN1 SHDN2 SHDN3 SHDN4 AUTO MSD RESET MID SDAIN SCL

3.3V

0.1µF

SDAOUT

SMAJ5.0A

10µF

INT

DGND

AGND

LTC4266

0.22µF 100V

S1B

×4

S1B

×4

10Ω

×4

–54V

SENSE1 GATE1 OUT1 SENSE2 GATE2 OUT2 SENSE3 GATE3 OUT3 SENSE4 GATE4 OUT4

SMAJ58A

1µF

BULK

–54V

100V

TVS

BULK

PORT1

PORT2

PORT3

PORT4

4266AC TA01

4266acfe

For more information www.linear.com/LTC4266A

12 3 4 5 6 7...32

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与LTC4266AIUHF-3#TRPBF相关器件

型号	品牌	获取价格	描述	数据表
LTC4266C	Linear	获取价格	12-Port PoE/PoE+/LTPoE++ PSE Controller
LTC4266C_15	Linear	获取价格	Quad PoE/PoE/LTPoE PSE Controller
LTC4266CIUHF#PBF	Linear	获取价格	LTC4266A/LTC4266C - Quad PoE/PoE+/LTPoE++ PSE Controller; Package: QFN; Pins: 38; Temperat
LTC4266CUHF#PBF	Linear	获取价格	LTC4266 - Quad IEEE 802.3at Power Over Ethernet Controller; Package: QFN; Pins: 38; Temper
LTC4266IGW#PBF	Linear	获取价格	暂无描述
LTC4266IGW#TRPBF	Linear	获取价格	暂无描述
LTC4266IUHF#PBF	Linear	获取价格	LTC4266 - Quad IEEE 802.3at Power Over Ethernet Controller; Package: QFN; Pins: 38; Temper
LTC4267	Linear	获取价格	Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator
LTC4267	ADI	获取价格	具集成型开关稳压器的以太网供电 IEEE 802.3af PD 接口
LTC4267-1	Linear	获取价格	Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator

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