5秒后页面跳转
捷配首页

Datasheet > LTC4279
LTC4279 PDF预览

LTC4279

更新时间： 2024-09-18 14:58:07
品牌 Logo 应用领域
亚德诺 - ADI 控制器
页数 文件大小 规格书
26页 1165K
描述
单端口 PoE / PoE+ / LTPoE++ PSE 控制器

阅读下载

中文翻译

获取价格

LTC4279 数据手册

 浏览型号LTC4279的Datasheet PDF文件第2页浏览型号LTC4279的Datasheet PDF文件第3页浏览型号LTC4279的Datasheet PDF文件第4页浏览型号LTC4279的Datasheet PDF文件第5页浏览型号LTC4279的Datasheet PDF文件第6页浏览型号LTC4279的Datasheet PDF文件第7页 
LTC4279  
+
Single Port PoE/PoE /  
++  
LTPoE PSE Controller  
FEATURES  
DESCRIPTION  
The LTC®4279 is an autonomous single port power sourc-  
ing equipment (PSE) controller designed for use in IEEE  
n
Compliant with IEEE 802.3at Type 1 and 2  
Supports LTPoE ® Up to 90W  
++  
n
n
n
n
++  
Supports Dual-Signature PDs  
802.3at Type 1, Type 2 and LTPoE compliant Power  
Fully Autonomous Operation without Microcontroller  
Very Low Power Dissipation  
over Ethernet (PoE) systems. The LTC4279 provides fully  
++  
autonomousIEEE802.3andLTPoE compliantoperation  
– 0.1Ω Sense Resistance  
without a microcontroller. The LTC4279 simplifies PSE  
implementation, requiringonlyasinglesupplyandasmall  
number of passive support components.  
– Low R  
External MOSFET  
DS(ON)  
n
Very High Reliability 4-Point PD Detection  
– 2-Point Forced Voltage and Forced Current  
Robust Short-Circuit Protection  
The LTC4279 delivers lowest-in-industry heat dissipation  
n
n
n
by utilizing a low-R  
external MOSFET and a 0.1Ω  
DS(ON)  
Cable Surge Protected 80ꢀ OUT Pin  
Classification Dependent I  
Thresholds  
sense resistor, eliminating the need for expensive heat  
sinks and increasing efficiency.  
and I Current  
CUT  
LIM  
n
n
n
n
n
n
n
PDdiscoveryusesaproprietarydual-mode4-pointdetec-  
tion mechanism ensuring excellent immunity from false  
PD detection. Midspan PSEs are supported with physical  
layer classification and a 2.5 second backoff timer.  
Supports 2-Pair and 4-Pair Output Power  
UltraPWR Mode Supports Custom PDs Up to 123W  
Pin-Selectable Detection Backoff Timer for Midspans  
Pin Programmable Legacy PD Detection  
Pin Programmable Maximum Power Mode  
Status LED Pin  
LegacyandcustomPDsaresupportedwithpin-selectable  
LEGACY and UltraPWR modes. LEGACY mode detects  
and powers pre-IEEE specification PDs. UltraPWR mode  
aggressively turns on and powers custom PDs requiring  
high inrush and/or operational currents.  
Available in 20-Pin QFN and 16-Pin SO Packages  
APPLICATIONS  
++  
L, LT, LTC, LTM, Linear Technology, the Linear logo and LTPoE are registered trademarks of  
Analog Devices, Inc. All other trademarks are the property of their respective owners.  
n
PoE PSE Endpoints (Switch/Router)  
n
PoE Midspan Power Injectors  
n
Power Forwarders  
n
Femto Cells  
n
Security Systems  
TYPICAL APPLICATION  
MAXIMUM PD INPUT POWER  
Type 1 (13W)  
R
( 1ꢀ)  
PM  
+
2.37k  
0.22µF  
100V  
X7R  
PORT  
S1B  
10Ω  
BULK  
AGND  
Type 2 (25.5W)  
++  
LTPoE 38.7W  
++  
LTPoE 52.7W  
++  
LTPoE 70W  
3.32k  
4.64k  
5.90k  
7.87k  
10.0k  
13.0k  
–
TVS  
LED  
RESET  
OUT  
LTC4279  
R
GATE  
GATE  
PWRMODE  
1µF  
100V  
X7R  
SENSE  
MID  
LEGACY  
DUALPD  
C
BULK  
0.1Ω  
++  
LTPoE 90W  
R
PM  
VSSK  
V
SMAJ58A  
EE  
UltraPWR – (Up to 123W*)  
4279 TA01  
V
EE  
*Depending on ꢀ  
PSE  
4279fa  
1
For more information www.linear.com/LTC4279  
1234567...26

中文翻译

下载PDF

与LTC4279相关器件

型号 品牌 获取价格 描述 数据表
LTC4279IS#PBF Linear

获取价格

 		LTC4279 - Single Port PoE/PoE+/ LTPoE++ PSE Controller; Package: SO; Pins: 16; Temperature
LTC4279IUFD#PBF Linear

获取价格

 		LTC4279 - Single Port PoE/PoE+/ LTPoE++ PSE Controller; Package: QFN; Pins: 20; Temperatur
LTC4280 Linear

获取价格

 		Hot Swap Controller with I2C Compatible Monitoring
LTC4280 ADI

获取价格

 		具 I2C 兼容型监视功能的热插拔控制器
LTC4280CUFD Linear

获取价格

 		Hot Swap Controller with I2C Compatible Monitoring
LTC4280CUFD#PBF Linear

获取价格

 		LTC4280 - Hot Swap Controller with I<sup>2</sup>C Compatible Monitoring; Packa
LTC4280CUFD#TR Linear

获取价格

 		暂无描述
LTC4280CUFD#TRPBF Linear

获取价格

 		LTC4280 - Hot Swap Controller with I<sup>2</sup>C Compatible Monitoring; Packa
LTC4280CUFD-PBF Linear

获取价格

 		Hot Swap Controller with I2C Compatible Monitoring
LTC4280CUFD-TR Linear

获取价格

 		Hot Swap Controller with I2C Compatible Monitoring

与LTC4279相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证