TPS2384 Status: ACTIVE

Quad Ethernet Power Sourcing Equipment Power Manager

      
         
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Request PSE Software and Documentation at: www.ti.com/psesw


Datasheet

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 TPS2384TPS23841 
No. of Outputs4  4  
Adjustable Current Limit(Min)(A) 0.571  
Vin(Min)(V) 34  
Vin(Max)(V) 57  
rDS(on) per FET(Typ)(mOhms) 1300  
Approx. Price (US$) 5.10 | 1ku   8.05 | 1ku  
RatingCatalog  Catalog  
Pin/Package64HTQFP  64HTQFP  
Operating Temp Range(Celsius)-40 to 125  -40 to 125  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS23841: High Power Wide Voltage Range Quad Port Ethernet Power Sourcing Equipment Manager
  • TPS23750: IEEE 802.3af PD Controller with Integrated DC/DC
  • TPS23753: IEEE 802.3-2005 PoE Interface and Isolated Converter and Controller
  • TPS2375: IEEE 802.3af PoE Powered Device Controllers

Product Information

Features

  • Quad-Port Power Management With Integrated Switches and Sense Resistors
  • Compliant to IEEE 802.3af Standard
  • Operates from a Single 48-V Input Supply
  • Individual Port 15-bit A/D
  • Auto, Semi-Auto and Power Management Operating Modes
  • Controlled Current Ramps for Reduced EMI and Charging of PD's Bulk Capacitance
  • I2C Clock and Oscillator Watchdog Timers
  • Over-Temperature Protection
  • DC and DC Modulated Disconnect
  • Supports Legacy Detection for Non-Compliant PD's
  • Supports AC Disconnect
  • High-Speed 400-kHz I2C Interface
  • Comprehensive Power Management Software Available
  • Operating Temperature Range &#q50;40°C to 125°C
  • APPLICATIONS
    • Ethernet Enterprise Switches
    • Ethernet Hubs
    • SOHO Hubs
    • Ethernet Mid-Spans
    • PSE Injectors

Description

The TPS2384 is a quad-port power sourcing equipment power manager (PSEPM) and is compliant to the Power-over-Ethernet (PoE) IEEE 802.3af standard. The TPS2384 operates from a single 48-V supply and over a wide temperature range (–40°C to 125°C). Theintegrated output eliminates two external components per port (FET and sense resistor) and will survive 100-V transients. Four individual 15-bit A/D converters are used to measure port resistance, voltage, current and die temperature making PSE solutions simple and robust. The TPS2384 comes with a comprehensive software solution to meet the most demanding applications which can serve as a core for all PoE system designs.

The TPS2384 has three internal supply buses (10 V, 6.3 V and 3.3 V) generated from the 48-V input supply. These supplies are used to bias all internal digital and analog circuitry. Each supply has been brought out separately for proper bypassing to insure high performance. The digital supply (3.3 V) is available for powering external loads up to 2 mA. For more demanding loads it is highly recommended to use external buffers to prevent system degradation. When the TPS2384 is initially powered up an internal Power-on-Reset (POR) circuit resets all registers and sets all ports to the off state to ensure that the device is powered up in a known safe operating state.

The TPS2384 has three modes of operation; automode (AM), semi-automode (SAM) and power management mode (PMM).

  • In auto mode the TPS2384 performs discovery, classification and delivery of power autonomously to a compliant PD without the need of a micro-controller.
  • In semi-automode the TPS2384 operates in automode but users can access the contents of all read status registers and A/D registers through the I2C serial interface. All write control registers are active except for D0 through D3 of Port Control register 1 (Address 0010) for limited port control. The semi-auto mode allows the TPS2384 to detect valid PD's without micro-controller intervention but adds a flexibility to perform power management activities.
  • Power management mode (with a micro-controller) allows users additional capabilities of discovering non-compliant (legacy) PDs, performing AC Disconnect and advanced power management system control that are based on real time port voltages and currents. All functions in this mode are programmed and controlled through read/write registers over the I2C interface. This allows users complete freedom in detecting and powering devices. A comprehensive software package is available that mates the power of the TPS2384 with the MSP430 micro-controller.

TPS2384 integrated output stage provides port power and low-side control. The internal low-side circuitry is designed with internal current sensing so there are no external resistors required. The output design ensures the power switches operate in the fully enhanced mode for low power dissipation.

The I2C interface allows easy application of opto-coupler circuitry to maintain Ethernet port isolation when a ground based micro-controller is required. The TPS2384 five address pins (A1—A5) allow the device to be addressed at one of 31 possible I2C addresses. Per-port write registers separately control each port state (discovery, classification, legacy, power up, etc) while the read registers contain status information of the entire process along with parametric values of discovery, classification, and real-time port operating current, voltage and die temperature.

The proprietary 15-bit integrating A/D converter is designed to meet the harsh environment where the PSEPM resides. The converter is set for maximum rejection of power line noise allowing it to make accurate measurements of line currents during discovery, classification and power delivery for reliable power management decisions.

TheTPS2384 is available in either 64-pin PowerPAD™ down (PAP) or 64-pin PowerPAD™ up (PJD) packages.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS2384PAPACTIVE-40 to 1255.60 | 1kuHTQFP (PAP) | 64 View 160 | JEDEC TRAY (5+1) Download CAD Format for this Symbol
TPS2384PAPG4ACTIVE-40 to 1255.60 | 1kuHTQFP (PAP) | 64 View 160 | JEDEC TRAY (5+1) 
TPS2384PAPRACTIVE-40 to 1255.10 | 1kuHTQFP (PAP) | 64 View 1000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS2384PAPRG4ACTIVE-40 to 1255.10 | 1kuHTQFP (PAP) | 64 View 1000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS2384PJDACTIVE-40 to 1255.60 | 1kuHTQFP (PJD) | 64  160 | JEDEC TRAY (5+1) 
TPS2384PJDG4ACTIVE-40 to 1255.60 | 1kuHTQFP (PJD) | 64  160 | JEDEC TRAY (5+1) 
TPS2384PJDRACTIVE-40 to 1255.10 | 1kuHTQFP (PJD) | 64  1000 | LARGE T&R Purchase Samples
TPS2384PJDRG4ACTIVE-40 to 1255.10 | 1kuHTQFP (PJD) | 64  1000 | LARGE T&R Purchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

  TI Inventory Status Reported Distributor Inventory
TPS2384PAPAs of 8:47 AM GMT, 03 Jul 2009As of 8:47 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 6 Weeks AmericasArrow >1k
 Avnet 53
 Mouser Electronics 16
 Newark 110
 AsiaWPI 202
 EuropeArrow Southern Europe 12
 Farnell 1
TPS2384PAPG4As of 8:47 AM GMT, 03 Jul 2009As of 8:47 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 6 WeeksNone Reported
View Distributors
   
TPS2384PAPRAs of 8:47 AM GMT, 03 Jul 2009As of 8:47 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 6 WeeksNone Reported
View Distributors
   
TPS2384PAPRG4As of 8:47 AM GMT, 03 Jul 2009As of 8:47 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 6 WeeksNone Reported
View Distributors
   
TPS2384PJDAs of 8:47 AM GMT, 03 Jul 2009As of 8:47 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey 410
 Mouser Electronics 137
TPS2384PJDG4As of 8:47 AM GMT, 03 Jul 2009As of 8:47 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
TPS2384PJDRAs of 8:47 AM GMT, 03 Jul 2009As of 8:47 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
TPS2384PJDRG4As of 8:47 AM GMT, 03 Jul 2009As of 8:47 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TPS2384PAP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
TPS2384PAPG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
TPS2384PAPR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
TPS2384PAPRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
TPS2384PJD RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
TPS2384PJDG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
TPS2384PJDR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
TPS2384PJDRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

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Datasheet

Application Notes

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Tools & Software

NamePart # Company Tool / Software Type
TPS2384 PoE_PSE_Evaluation_Module_for_Enterprise_Ethernet_SwitchesTPS2384EVM-152Texas InstrumentsDevelopment Boards/EVMs
TPS2384EVM PoE Auto mode Evaluation ModuleTPS2384EVMTexas InstrumentsDevelopment Boards/EVMs

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