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UCC3895 Status: ACTIVE

BiCMOS Advanced Phase Shift PWM Controller


      
         
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Datasheet

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Functional Block Diagram


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 UCC1895 UCC2895 UCC3895
TopologyFull-Bridge  Full-Bridge  Boost, Buck, Full-Bridge  
Control MethodCurrent Mode, Voltage Mode  Current Mode, Voltage Mode  Current Mode, Voltage Mode  
Duty Cycle(Max)(%)100  100  100  
PWM Outputs(#)4  4  4  
Frequency(Max)(kHz)1000  1000  1000  
UVLO Thresholds On/Off(V)11/9  11/9  11/9  
Pin/Package20CDIP, 20LCCC  20PDIP, 20PLCC, 20SOIC, 20TSSOP  20PDIP, 20PLCC, 20SOIC, 20TSSOP  
Regulated Outputs(#)4  4  4  
 SamplesSamplesSamples
 InventoryInventoryInventory

Other qualified versions of UCC3895

Version Part Number Definition
Military UCC1895 QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

  • UCC2895: BiCMOS Advanced Phase Shift Resonant Controller
  • UC3875: Phase Shift Resonant Controller
  • TL494: PWM Control Circuit
  • UCC28070: Two-Phase Interleaved CCM PFC Controller
  • TL431A: Adjustable Precision Shunt Regulator
  • TPS3808G09: Low Quiescent Current, Programmable-Delay Supervisory Circuit

More Related Products

Product Information

Features

  • Programmable Output Turn-on Delay
  • Adaptive Delay Set
  • Bidirectional Oscillator Synchronization
  • Voltage-Mode, Peak Current-Mode, or Average Current-Mode Control
  • Programmable Softstart/Softstop and Chip Disable via a Single Pin
  • 0% to 100% Duty-Cycle Control
  • 7-MHz Error Amplifier
  • Operation to 1 MHz
  • Typical 5-mA Operating Current at 500 kHz
  • Very Low 150-µA Current During UVLO
  • APPLICATIONS
    • Phase-Shifted Full-Bridge Converters
    • Off-Line, Telecom, Datacom and Servers
    • Distributed Power Architecture
    • High-Density Power Modules

Description

The UCC3895 is a phase-shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. It allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part can be used either as a voltage-mode or current-mode controller.

While the UCC3895 maintains the functionality of the UC3875/6/7/8 family and UC3879, it improves on that controller family with additional features such as enhanced control logic, adaptive delay set, and shutdown capability. Since it is built using the BCDMOS process, it operates with dramatically less supply current than it's bipolar counterparts.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UCC3895DWACTIVE0 to 703.85 | 1kuSOIC (DW) | 20 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895DWG4ACTIVE0 to 703.85 | 1kuSOIC (DW) | 20 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895DWTRACTIVE0 to 703.50 | 1kuSOIC (DW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3895DWTRG4ACTIVE0 to 703.50 | 1kuSOIC (DW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3895NACTIVE0 to 703.85 | 1kuPDIP (N) | 20 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895NG4ACTIVE0 to 703.85 | 1kuPDIP (N) | 20 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895PWACTIVE0 to 703.85 | 1kuTSSOP (PW) | 20 View 70 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895PWG4ACTIVE0 to 703.85 | 1kuTSSOP (PW) | 20 View 70 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895PWTRACTIVE0 to 703.50 | 1kuTSSOP (PW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3895PWTRG4ACTIVE0 to 703.50 | 1kuTSSOP (PW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3895QACTIVE0 to 703.85 | 1kuPLCC (FN) | 20 View 46 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895QG3ACTIVE0 to 703.85 | 1kuPLCC (FN) | 20 View 46 | 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 9:25 AM GMT, 09 Feb 2010
RegionCompanyIn StockPurchase
TI Lead Time*: 18 WeeksUCC3895DW
EuropeAvnet-SILICA 150
Compel 329
WorldwideMouser Electronics 1
TI Lead Time*: 18 WeeksUCC3895DWG4
None Reported
View Distributors
TI Lead Time*: 18 WeeksUCC3895DWTR
AmericasAvnet >1k
TI Lead Time*: 18 WeeksUCC3895DWTRG4
AsiaWPI 10
TI Lead Time*: 14 WeeksUCC3895N
AmericasArrow 80
Newark 77
Rochester Electronics >1k
AsiaFarnell Asia 300
WPI 301
EuropeArrow Central Europe 60
Arrow Southern Europe >1k
Avnet-SILICA 7
Farnell 300
WorldwideDigiKey 438
Mouser Electronics 51
TI Lead Time*: 14 WeeksUCC3895NG4
WorldwideDigiKey  Available
TI Lead Time*: 22 WeeksUCC3895PW
AmericasRochester Electronics >1k
AsiaWPI 12
EuropeArrow Central Europe 70
Avnet-SILICA 70
WorldwideMouser Electronics 170
TI Lead Time*: 22 WeeksUCC3895PWG4
None Reported
View Distributors
TI Lead Time*: 22 WeeksUCC3895PWTR
None Reported
View Distributors
TI Lead Time*: 22 WeeksUCC3895PWTRG4
AsiaWPI 164
TI Lead Time*: 4 WeeksUCC3895Q
AmericasRochester Electronics 782
EuropeEBV Elektronik 36
TI Lead Time*: 4 WeeksUCC3895QG3
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
UCC3895DW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3895DWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3895DWTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3895DWTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3895N RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UCC3895NG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UCC3895PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3895PWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3895PWTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3895PWTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3895Q RoHS Compliant Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEARViewView
UCC3895QG3 RoHS Compliant Green (RoHS & no Sb/Br) CU SN 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 UCC3895 Help

Datasheet

Application Notes

View Application Notes for PWM Power Supply Controllers

User Guides

View User Guides for PWM Power Supply Controllers

Tools & Software

NamePart # Company Tool / Software Type
UCC3895 Evaluation ModuleUCC3895EVM-001Texas InstrumentsDevelopment Boards/EVMs

Simulation Models

Part # Name Product Family Comments
UCC27200   120V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver   AC/DC AND DC/DC POWER SUPPLIES - MOSFET DRIVERS   The UCC27200 has a boot voltage capability of 120V and when combined with the UCC3895 becomes an ideal solution for intermediate bus architecture converters.    
Customers Who Evaluated This Product Also Evaluated...
UCC2895 BiCMOS Advanced Phase Shift Resonant Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC3875 Phase Shift Resonant Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
TL494 PWM Control Circuit AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC3879 Phase Shift Resonant Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
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TL431A Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE 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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TPS54231 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™ DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS40210 Wide Input Range Current Mode Boost Controller NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS65023 6-channel Power Mgmt IC with 3DC/DCs, 3 LDOs, I2C Interface and DVS, Optimized for DaVinci DSPs POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER TI customers also evaluated this product.
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