Datasheet > LTC4267-1

LTC4267-1

更新时间： 2024-09-12 05:43:59

品牌	Logo	应用领域
凌特 - Linear		稳压器开关光电二极管以太网
页数	文件大小	规格书
32页	904K
描述
Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator

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LTC4267-1 数据手册

LTC4267-1

Power over Ethernet

IEEE 802.3af PD Interface with

Integrated Switching Regulator

FEATURES

DESCRIPTIO

Complete Power Interface Port for IEEE 802^®.3af

The LTC^®4267-1 combines an IEEE 802.3af compliant

PoweredDevice(PD)interfacewithacurrentmodeswitch-

ing regulator, providing a complete power solution for PD

applications. The LTC4267-1 integrates the 25k signature

resistor, classiﬁcation current source, thermal overload

protection, signaturedisableandpowergoodsignalalong

with an undervoltage lockout optimized for use with the

IEEE-required diode bridge. The LTC4267-1 provides an

increased operational current limit, maximizing power

available for class 3 applications.

■

Powered Device (PD)

■

Onboard 100V, UVLO Switch

■

Precision Dual Level Inrush Current Limit

■

Integrated Current Mode Switching Regulator

■

Onboard 25k Signature Resistor with Disable

■

Programmable Classiﬁcation Current (Class 0-4)

■

Thermal Overload Protection

Power Good Signal

■

Integrated Error Ampliﬁer and Voltage Reference

Low Proﬁle 16-Pin SSOP Package

■

The current mode switching regulator is designed for

driving a 6V rated N-channel MOSFET and features pro-

grammable slope compensation, soft-start, and constant

frequency operation, minimizing noise even with light

loads. The LTC4267-1 includes an onboard error ampliﬁer

and voltage reference allowing use in both isolated and

nonisolated conﬁgurations.

APPLICATIO S

■

IP Phone Power Management

■

Wireless Access Points

■

Security Cameras

Power over Ethernet

■

The LTC4267-1 is available in a space saving, low proﬁle

16-pin SSOP package.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

TYPICAL APPLICATIO

Class 2 PD with 3.3V Isolated Power Supply

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中文翻译

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与LTC4267-1相关器件

型号	品牌	获取价格	描述	数据表
LTC4267-3	Linear	获取价格	Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator
LTC4267-3	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
LTC4267CDHC	Linear	获取价格	Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator
LTC4267CDHC#PBF	Linear	获取价格	LTC4267 - Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulato
LTC4267CDHC#TRPBF	Linear	获取价格	LTC4267 - Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulato
LTC4267CDHC-3	Linear	获取价格	Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator
LTC4267CDHC-3#PBF	Linear	获取价格	LTC4267-3 - Power over Ethernet IEEE 802.3af PD Interface with Integrated 300kHz Switching
LTC4267CDHC-3#TR	Linear	获取价格	LTC4267-3 - Power over Ethernet IEEE 802.3af PD Interface with Integrated 300kHz Switching
LTC4267CDHC-3#TRPBF	Linear	获取价格	LTC4267-3 - Power over Ethernet IEEE 802.3af PD Interface with Integrated 300kHz Switching
LTC4267CGN	Linear	获取价格	Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator

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