參數(shù)資料
型號(hào)： TPS2377DG4
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： GREEN, PLASTIC, SOIC-8
文件頁(yè)數(shù)： 1/24頁(yè)
文件大?。?/td> 579K
代理商： TPS2377DG4
D8
PW8
1
FEATURES
APPLICATIONS
1
2
3
4
5
6
7
8
VSS
CLASS
UVLO
DET
RTN
PG
VDD
ILIM
1
2
3
4
5
6
7
8
VSS
CLASS
N/C
DET
RTN
PG
VDD
ILIM
TPS2375/77
(TOP VIEW)
TPS2376
(TOP VIEW)
DESCRIPTION
TPS2375
SMAJ58A
Data to
Ethernet PHY
VDD
VSS
CLASS
DET
RTN
PG
Data to
Ethernet
PHY
1
3
6
4
5
7
8
TO
DC/DC
CONVERTER
ILIM
2
RJ45
DF01S
2 Places
Note: Class 3 PD Depicted.
PG Pullup Resistor Is Optional.
TX
Pair
RX
Pair
Spare
Pair
Spare
Pair
VDD
Input
Current
VRTN
V
Detect
Classify Power Up & Inrush
Class 3
(PG-RTN)
100
kW
100 V
100 mF,
R(DET)
24.9 kW,
1 %
R(ILIM)
178 kW,
1 %
R(ICLASS)
357 W,
1 %
100 V
0.1mF,
10 %
Note: All Voltages With Respect to VSS.
Current
data sheet
www.ti.com............................................................................................................................................................ SLVS525B – APRIL 2004 – REVISED APRIL 2008
IEEE 802.3af PoE POWERED DEVICE CONTROLLERS
VoIP Phones
Fully Supports IEEE 802.3af Specification
WLAN Access Points
Integrated 0.58-, 100-V, Low-Side Switch
Security Cameras
15-kV System Level ESD Capable
Internet Appliances
Supports Use of Low-Cost Silicon Rectifiers
POS Terminals
Programmable Inrush Current Control
Fixed 450-mA Current Limit
Fixed and Adjustable UVLO Options
Open-Drain, Power-Good Reporting
Overtemperature Protection
Industrial Temperature Range: -40°C to 85°C
8-Pin SOIC and TSSOP Packages
These easy-to-use 8-pin integrated circuits contain all of the features needed to develop an IEEE 802.3af
compliant powered device (PD). The TPS2375 family is a second generation PDC (PD Controller) featuring
100-V ratings and a true open-drain, power-good function.
In addition to the basic functions of detection, classification and undervoltage lockout (UVLO), these controllers
include an adjustable inrush limiting feature. The TPS2375 has 802.3af compliant UVLO limits, the TPS2377 has
legacy UVLO limits, and the TPS2376 has a programmable UVLO with a dedicated input pin.
The TPS2375 family specifications incorporate a voltage offset of 1.5 V between its limits and the IEEE 802.3af
specifications to accommodate the required input diode bridges used to make the PD polarity insensitive.
Additional resources can be found on the TI Web site www.ti.com.
Figure 1. Typical Application Circuit and Startup Waveforms
1
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2004–2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS2377DR 功能描述:熱插拔功率分布 IEEE 802.3af PoE Pwr Device Cntrler 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2377DR-1 功能描述:熱插拔功率分布 IEEE 802.3af PoE Pwr Device Cntrler 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2377DR-1G4 功能描述:熱插拔功率分布 IEEE 802.3af PoE Pwr Device Cntrler 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2377DRG4 功能描述:熱插拔功率分布 IEEE 802.3af PoE Pwr Device Cntrler 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2377PW 功能描述:熱插拔功率分布 IEEE 802.3af PoE Pwr Device Cntrler 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
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