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UC3907 Status: ACTIVE

Load Share Controller


      
         
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Datasheet

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 UC2907 UC3907
Share BusSingle-Ended  Single-Ended  
Operating Supply Current(mA)6  6  
Startup Current(uA)3000  3000  
Operating Supply(Min)(V)4.5  4.5  
Operating Supply(Max)(V)35  36  
Pin/Package16PDIP, 16SOIC  16PDIP, 16SOIC  
RatingMilitary  Military  
 SamplesSamples
 InventoryInventory

Other qualified versions of UC3907

Version Part Number Definition
Military UC1907 QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

  • UCC39002: Advanced 8 Pin Loadshare Controller

Product Information

Features

  • Fully Differential High Impedance Voltage Sensing
  • Accurate Current Amplifier for Precise Current Sharing
  • Opto Coupler Driving Capability
  • 1.25% Trimmed Reference
  • Master Status Indication
  • 4.5-V to 35-V Operation

Description

The UCx907 family of load share controller ICs provides all the necessary features to allow multiple-independent-power modules to be paralleled such that each module supplies only its proportionate share to total-load current.

This sharing is accomplished by controlling each module’s power stage with a command generated from a voltage-feedback amplifier whose reference can be independently adjusted in response to a common-share-bus voltage. By monitoring the current from each module, the current share bus circuitry determines which paralleled module would normally have the highest output current and, with the designation of this unit as the master, adjusts all the other modules to increase their output current to within 2.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UC3907DWACTIVE0 to 702.30 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC3907DWG4ACTIVE0 to 702.30 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC3907DWTRACTIVE0 to 702.20 | 1kuSOIC (DW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC3907DWTRG4ACTIVE0 to 702.20 | 1kuSOIC (DW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC3907JOBSOLETE0 to 70 CDIP (J) | 16     Download CAD Format for this FootprintNot Available
UC3907NACTIVE0 to 702.30 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC3907NG4ACTIVE0 to 702.30 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint

* 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 9:51 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksUC3907DW
AmericasAvnet 330
Rochester Electronics 460
WorldwideDigiKey 389
Mouser Electronics 124
TI Lead Time*: 20 WeeksUC3907DWG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUC3907DWTR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUC3907DWTRG4
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
Call**UC3907J
AmericasRochester Electronics >1k
TI Lead Time*: 20 WeeksUC3907N
AmericasRochester Electronics 570
AsiaWPI 250
EuropeAvnet-SILICA 25
WorldwideMouser Electronics 59
TI Lead Time*: 20 WeeksUC3907NG4
AsiaFarnell Asia 118
EuropeFarnell 108
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
UC3907DW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC3907DWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC3907DWTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC3907DWTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC3907N RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC3907NG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView

* 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 UC3907 Help

Datasheet

Application Notes

User Guides

Tools & Software

NamePart # Company Tool / Software Type
UCC39002 Evaluation ModuleUCC39002EVMTexas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
UCC39002 Advanced 8 Pin Loadshare Controller POWER SUPPLY SUPPORT-LOADSHARE TI customers also evaluated this product.

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