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參數(shù)資料
| 型號： | TPS23841_07 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | HIGH-POWER, WIDE VOLTAGE RANGE, QUAD-PORT ETHERNET POWER SOURCING EQUIPMENT MANAGER |
| 中文描述： | 大功率，寬電壓范圍，四端口以太網(wǎng)供電設備管理器 |
| 文件頁數(shù)： | 1/52頁 |
| 文件大小： | 1011K |
| 代理商： | TPS23841_07 |
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www.ti.com
FEATURES
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
I
CUT
= 615 mA, I
LIM
= 650 mA Nominal
IEEE 802.3af Compatible
Individual Port 15-bit A/D Converters
Auto, Semi-Auto and Power Management
Modes
Controlled Current Ramp Power-Up/Down for
EMI Reduction
Over-Temperature Protection
DC Disconnect Detection, Supports AC
Disconnect
High-Speed 400-kHz I
2
C Interface
Supports Legacy PD Detection
PowerPAD Package
Comprehensive Power Management Software
Available for MPS430 Microcontroller
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
DESCRIPTION
The TPS23841 is a high-power, wide voltage range,
quad-port
sourcing
equipment
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
integrated
output
eliminates
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.
TYPICAL APPLICATION
F1
D1
Z
Z
RETx
Nx
Px
TPS23841
CLASS
DET
VDD
VSS
RTN
TPS2376-H
Optional
MSP430
Micro
DC/DC
Converter
SDA_O
SDA_I
SCL
+55V
V
POE
RTN
High-current
PoEXfmr
High-current
PoEXfmr
3
6
1
2
7
8
RJ45
4
5
3
6
1
2
7
8
RJ45
4
5
TX
RX
TX
RX
Up to 100m
of CAT5A
FB1
FB2
C1
PSE
PD
TPS23841
SLUS745–NOVEMBER 2006
HIGH-POWER, WIDE VOLTAGE RANGE, QUAD-PORT ETHERNET POWER SOURCING
EQUIPMENT MANAGER
manager.
The
two
external
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
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS23841PAP | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS23841PAPG4 | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS23841PAPR | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS23841PAPRG4 | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS23841PJD | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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