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TPS23757 Status: ACTIVE

High Efficiency PoE Interface and DC/DC Controller


      
         
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 TPS23757
PoE Standards Supported802.3at type1  
PD Power Level13W  
PoE Inrush Limit(Typ)(mA)140  
PoE Current Limit(Min)(mA)400  
UVLOUnified  
rDS(on) per FET(Typ)(mOhms)430  
Fault ResponseAuto Retry  
Error AmplifierNo  
Auxiliary/Local Power SupportProgrammable  
Auxiliary Power Rails Supported12V-57V  
Driven/Active Clamp (Second Gate Drive)Yes  
Duty Cycle(%)78  
Switching FrequencySynchronizable and Programmableand Programmable  
Operating Temp Range(Celsius)-40 to 125  
Pin/Package20TSSOP  
Approx. Price (US$) 1.65 | 1ku  
RatingCatalog  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • TPS23756: High Power/High Efficiency PoE Interface and DC/DC Controller
  • TPS23754: High Power/High Efficiency PoE Interface and DC/DC Controller
  • TPS23754-1: IEEE 802.3at PoE Interface and Isolated Converter Controller
  • TPS79801-Q1: Automotive Catalog 50 mA, 3 V to 80 V, Micropower, Low-Dropout Linear Regulator
  • TPS2553: Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch
  • TLV431A: Low Voltage Adjustable Precision Shunt Regulator

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Product Information

Features

  • Powers up to 13 W (Input) PDs
  • Legacy and IEEE 802.3at type 1 PDs
  • Optimized for Isolated DC/DC Converters
  • Supports High-Efficiency Topologies
  • Complete PoE Interface
  • Adapter ORing Support
  • Programmable Frequency with Synch.
  • Robust 100 V, 0.5 Hotswap MOSFET
  • Pin Compatible with TPS23754/6
  • –40°C to 125°C Junction Temperature Range
  • Industry Standard TSSOP-20
  • APPLICATIONS
    • IEEE 802.3at (draft) type 1 Compliant Devices
    • Video and VoIP Telephones
    • Access Points
    • Security Cameras

Description

The TPS23757 is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode dc/dc controller optimized specifically for isolated converters. The PoE interface supports the IEEE 802.3at (draft) standard for a type 1 PD, which is equivalent to the 13W standard of IEEE 802.3-2008.

The TPS23757 supports a number of input voltage ORing options including highest voltage, external adapter preference, and PoE preference.

The TPS23757 has an output flag indicating if an external wall adapter is active when used in conjunction with ORing controls. The detection signature pin can also be used to force power from the PoE source off. Classification can be programmed to any of the defined types with a single resistor.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
TPS23757PWACTIVE-40 to 1251.85 | 1kuTSSOP (PW) | 20 View 70 | TUBE
TPS23757PWRACTIVE-40 to 1251.65 | 1kuTSSOP (PW) | 20 View 2000 | LARGE T&RPurchase 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

Reported Distributor Inventory as of 10:17 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS23757PW
AmericasArrow 210
Newark 210
AsiaFarnell Asia 210
EuropeFarnell 210
Spoerle 210
WorldwideDigiKey 146
Mouser Electronics 350
TI Lead Time*: 20 WeeksTPS23757PWR
None Reported
View Distributors
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
TPS23757PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS23757PWR 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

Most useful technical documents for TPS23757 Help

Datasheet

User Guides

Tools & Software

NamePart # Company Tool / Software Type
Evaluation Module for TPS23757, High Efficiency PoE Interface and DC/DC ControllerTPS23757EVMTexas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS23756 High Power/High Efficiency PoE Interface and DC/DC Controller POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES TI customers also evaluated this product.
TPS23754 High Power/High Efficiency PoE Interface and DC/DC Controller POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES TI customers also evaluated this product.
TPS23754-1 IEEE 802.3at PoE Interface and Isolated Converter Controller POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES TI customers also evaluated this product.
TPS23753A IEEE 802.3-2005 PoE Interface and Isolated Converter Controller with Enhanced ESD Ride-Through POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES TI customers also evaluated this product.
TPS79801-Q1 Automotive Catalog 50 mA, 3 V to 80 V, Micropower, Low-Dropout Linear Regulator LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS2553 Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TLV431A Low Voltage Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE TI customers also evaluated this product.
TPS62750 2.25MHz, 92% Efficiency Step-Down Converter with Automatic PFM/PWM Mode DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS54418 2.95V to 6V Input, 4A, 2MHz Synchronous Step Down SWIFT™ DCDC Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.

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