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TPS23750 Status: ACTIVE

IEEE 802.3af PD Controller with Integrated DC/DC

      
         
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Datasheet

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 TPS23750TPS23753 TPS23770 
PoE Current Limit(Nom)(mA)405  405  405  
PoE Standards Supported802.3af  802.3af  802.3af  
Driven/Active Clamp (Second Gate Drive)No  No  No  
Pin/Package20HTSSOP  14TSSOP  20HTSSOP  
UVLO802.3af/Legacy  Unified  Legacy  
Operating Temp Range(Celsius)-40 to 85  -40 to 125  -40 to 85  
Error AmplifierYes  No  Yes  
Auxiliary/Local Power SupportExternal Circuit  Programmable  No  
Auxiliary Power Rails Supported24V-57V  12V-57V  24V-57V  
PD Power Level13W  13W  13W  
Switching FrequencySynchronizable up to 500kHz  Synchronizable up to 1MHz  Synchronizable up to 500kHz  
Duty Cycle(%)50  80  50  
Approx. Price (US$) 1.50 | 1ku   1.45 | 1ku   1.50 | 1ku  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS23753: IEEE 802.3-2005 PoE Interface and Isolated Converter and Controller
  • TPS2375: IEEE 802.3af PoE Powered Device Controllers
  • TPS23754: High Power/High Efficiency PoE Interface and DC/DC Controller
  • TPS3823-33: Supply Voltage Supervisor w/Watchdog input and manual reset
  • TL431: Adjustable Precision Shunt Regulator
  • TPS63001: 96% Buck-Boost Converter with 1.7A Current Switches, 3.3V fixed Output voltage in 3x3 QFN

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Product Information

Features

  • Complete 802.3af PoE Interface
    • Features derived from the TPS2375
    • 100 V, 0.6 Internal Pass MOSFET
    • Standard and Legacy UVLO Choices
    • Fixed 140 mA Inrush Limit
  • Primary Side DC/DC Converter Control
    • Minimum External Component Count
    • Current Mode Control
    • Isolated and Non-Isolated Topologies
    • Programmable Operating Frequency
    • Current Sense Leading-edge Blanking
    • 50% Duty Cycle Limiting
    • Voltage Output Error Amplifier
  • Internal PoE and Converter Sequencing
  • Industry-Standard 20 Lead Package
  • Industrial Temperature Range, -40°C to 85°C
  • APPLICATIONS
    • All PoE PD Devices Including:
      • Wireless Access Points
      • VoIP Phones
      • Security Cameras

PowerPAD is a trademark of Texas Instruments.

Description

The TPS23750 integrates the functionality of the TPS2375 with a primary side dc/dc PWM controller. The designer can create a front-end solution for PoE-PD applications with minimum external components. The TPS23770 is identical to the TPS23750 with the exception of the undervoltage lockout turn-on voltage, which is compatible with legacy systems.

The PoE front end has all the necessary IEEE 802.3af functions including detection, classification, undervoltage lockout and inrush control. The PoE input switch is integrated within the TPS23750.

The dc/dc controller section is designed to support flyback, forward, and nonsynchronous low-side switch buck topologies.

The external switching MOSFET and current sense resistor provide flexibility in topology, power level, and current limit. The full-featured dc/dc controller includes programmable soft start, hiccup type fault limiting, 50% maximum duty cycle, programmable constant switching frequency, and a true voltage-output error amplifier. Additional protection features provide for robust designs.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS23750PWPACTIVE-40 to 851.65 | 1kuHTSSOP (PWP) | 20 View 70 | TUBE Download CAD Format for this SymbolPurchase Samples
TPS23750PWPG4ACTIVE-40 to 851.65 | 1kuHTSSOP (PWP) | 20 View 70 | TUBE Download CAD Format for this SymbolPurchase Samples
TPS23750PWPRACTIVE-40 to 851.50 | 1kuHTSSOP (PWP) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol
TPS23750PWPRG4ACTIVE-40 to 851.50 | 1kuHTSSOP (PWP) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol

* 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
TPS23750PWPAs of 8:48 AM GMT, 03 Jul 2009As of 8:48 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 16 Weeks AmericasAvnet 180
 DigiKey  Available
 Mouser Electronics 65
 Newark 112
 EuropeArrow Southern Europe 980
 Farnell 10
TPS23750PWPG4As of 8:48 AM GMT, 03 Jul 2009As of 8:48 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 16 Weeks AmericasDigiKey  Available
 Mouser Electronics 127
TPS23750PWPRAs of 8:48 AM GMT, 03 Jul 2009As of 8:48 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 14 Weeks AmericasDigiKey >1k
 Mouser Electronics 438
 AsiaWPI 988
TPS23750PWPRG4As of 8:48 AM GMT, 03 Jul 2009As of 8:48 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 14 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
TPS23750PWP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS23750PWPG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS23750PWPR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS23750PWPRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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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User Guides

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Reference Designs

Description Part # Company
12 V @ 1 A Isolated Flyback Converter for Power-Over-Ethernet PD Applications PMP2459 Texas Instruments

Tools & Software

NamePart # Company Tool / Software Type
TPS23750 Evaluation Module BuckTPS23750EVM-107Texas InstrumentsDevelopment Boards/EVMs
TPS23750 Evaluation Module FlybackTPS23750EVM-108Texas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS23753 IEEE 802.3-2005 PoE Interface and Isolated Converter and Controller   TI customers also evaluated this product.
TPS2375 IEEE 802.3af PoE Powered Device Controllers   TI customers also evaluated this product.
TPS23754 High Power/High Efficiency PoE Interface and DC/DC Controller   TI customers also evaluated this product.
TPS2376-H IEEE 802.3af PoE HIGH POWER PD CONTROLLER   TI customers also evaluated this product.
TPS2375-1 IEEE 802.3af PoE Powered Device Controllers   TI customers also evaluated this product.
TPS23770 IEEE 802.3af PD Controller with Integrated DC/DC   TI customers also evaluated this product.
TPS3823-33 Supply Voltage Supervisor w/Watchdog input and manual reset POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS) TI customers also evaluated this product.
TL431 Adjustable Precision Shunt Regulator REFERENCES-SHUNT VOLTAGE REFERENCES TI customers also evaluated this product.
TPS63001 96% Buck-Boost Converter with 1.7A Current Switches, 3.3V fixed Output voltage in 3x3 QFN DC/DC CONVERTERS (INTEGRATED SWITCH)-BUCK-BOOST REGULATORS TI customers also evaluated this product.
TPS51120 Dual Current Mode, Synch Step-Down Controller With 100-mA Standby Reg For Notebook System Power NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS62040 Adjustable, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10 DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
BQ24032A Dual Input Li-Ion Charger with Dynamic Power Path, Output regulated to 4.4V, Vbat 4.2V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
TPS63000 96% Buck-Boost Converter with 1.8A Current Switches in 3x3 QFN DC/DC CONVERTERS (INTEGRATED SWITCH)-BUCK-BOOST REGULATORS TI customers also evaluated this product.
TPS54386 Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS3808G09 Low Quiescent Current, Programmable-Delay Supervisory Circuit POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS) TI customers also evaluated this product.
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