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TPS23841PJD PDF预览

TPS23841PJD

更新时间： 2024-11-11 04:02:03
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德州仪器 - TI 以太网以太网：16GBASE-T
页数 文件大小 规格书
45页 1015K
描述
HIGH-POWER, WIDE VOLTAGE RANGE, QUAD-PORT ETHERNET POWER SOURCING EQUIPMENT MANAGER

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TPS23841PJD 数据手册

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TPS23841  
www.ti.com  
SLUS745–NOVEMBER 2006  
HIGH-POWER, WIDE VOLTAGE RANGE, QUAD-PORT ETHERNET POWER SOURCING  
EQUIPMENT MANAGER  
FEATURES  
APPLICATIONS  
•
•
•
•
•
Medical/Industrial Applications at 24 V  
High Power Ethernet Enterprise Switches  
SOHO Hubs, Ethernet Hubs  
Ethernet High Power Mid-Spans  
High Power PSE Injectors  
•
Quad-Port Power Management With Integrated  
Switches and Sense Resistors  
•
High Power PoE up to 25 W at PD Input  
Operating from a 53-V Minimum Input Power  
Rail  
•
•
•
•
•
Wide Range Single Supply: 21.5 V up to 57 V  
ICUT = 615 mA, ILIM = 650 mA Nominal  
IEEE 802.3af Compatible  
DESCRIPTION  
The TPS23841 is a high-power, wide voltage range,  
quad-port sourcing equipment manager. The  
TPS23841 can provide up to 570 mA per port over a  
wide temperature range (-40°C to +125°C). Each  
port may operate from 21.5 V up to 57 V. The  
Individual Port 15-bit A/D Converters  
Auto, Semi-Auto and Power Management  
Modes  
integrated  
output  
eliminates  
two  
external  
•
Controlled Current Ramp Power-Up/Down for  
EMI Reduction  
components per port (MOSFET and sense resistor)  
and survives 100-V transients. Four individual 15-bit  
A/D converters are used to measure signature  
resistance, voltage, current and die temperature,  
resulting in a simple and robust PSE solution. The  
TPS23841 comes with a comprehensive software  
solution to meet the most demanding applications  
which can serve as a core for all PoE system  
designs.  
•
•
Over-Temperature Protection  
DC Disconnect Detection, Supports AC  
Disconnect  
High-Speed 400-kHz I2C Interface  
Supports Legacy PD Detection  
PowerPAD™ Package  
•
•
•
•
Comprehensive Power Management Software  
Available for MPS430 Microcontroller  
TYPICAL APPLICATION  
PSE  
PD  
D1  
FB1  
Z
F1  
Up to 100m  
of CAT 5A  
+55V  
RJ45  
RJ45  
TX  
3
6
1
2
3
6
1
2
TX  
VDD  
TPS2376-H  
Px  
DET  
High-current  
PoEXfmr  
High-current  
PoEXfmr  
C1  
CLASS  
TPS23841  
DC/DC  
Converter  
RTN  
VSS  
RX  
RX  
Nx  
Z
4
5
7
8
4
5
7
8
FB2  
SCL  
SDA_I  
Optional  
MSP430  
Micro  
VPOE  
RTN  
RETx  
SDA_O  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PowerPAD is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006, Texas Instruments Incorporated  
1234567...45

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TPS23841PJD 替代型号

型号 品牌 替代类型 描述 数据表
TPS23841PJDRG4 TI

完全替代

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TPS23841PJDR TI

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