UCC3895 Status:ACTIVE

BiCMOS Advanced Phase Shift PWM Controller

      
         
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Datasheet

Download - PDF Icon
  • BiCMOS Advanced Phase Shift PWM Controller (Rev. L) (ucc3895.pdf, 669 KB)
    09 Apr 2008 Download

 UCC1895 UCC2895 UCC3895
TopologyFull-Bridge  Full-Bridge  Boost, Buck, Full-Bridge  
Control MethodCurrent Mode, Voltage  Current Mode, Voltage  Current Mode, Voltage  
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  
 SamplesSamplesSamples
 InventoryInventoryInventory

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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. The UCC3895 can operate with a maximum clock frequency of 1 MHz.

    

Pricing / Packaging / CAD Design Tools / Samples

Price ($US)PackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price ($US) | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UCC3895DWACTIVE0 to 705.40 | 100uSOIC (DW) | 20 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895DWG4ACTIVE0 to 705.40 | 100uSOIC (DW) | 20 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895DWTRACTIVE0 to 705.55 | 100uSOIC (DW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3895DWTRG4ACTIVE0 to 705.55 | 100uSOIC (DW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3895NACTIVE0 to 705.40 | 100uPDIP (N) | 20 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895NG4ACTIVE0 to 705.40 | 100uPDIP (N) | 20 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895PWACTIVE0 to 705.45 | 100uTSSOP (PW) | 20 View 70 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895PWG4ACTIVE0 to 705.45 | 100uTSSOP (PW) | 20 View 70 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895PWTRACTIVE0 to 705.60 | 100uTSSOP (PW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3895PWTRG4ACTIVE0 to 705.60 | 100uTSSOP (PW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3895QACTIVE0 to 705.40 | 100uPLCC (FN) | 20 View 46 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3895QG3ACTIVE0 to 705.40 | 100uPLCC (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

  TI Inventory Status Reported Distributor Inventory
UCC3895DWAs of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1892 | 17 Sep 4 Weeks AmericasArrow 304
 871 | 22 Sep DigiKey 928
 625 | 24 Sep Mouser Electronics 252
 >10k | 29 Sep Newark 25
  AsiaWPI 54
  EuropeArrow Southern Europe 147
  Farnell 156
  Spoerle 625
UCC3895DWG4As of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1892 | 17 Sep 4 Weeks AmericasMouser Electronics 63
 871 | 22 Sep Rochester Electronics 5
 625 | 24 Sep     
 >10k | 29 Sep     
UCC3895DWTRAs of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 5065 | 22 Sep 8 Weeks None Reported
View Distributors
   
 >10k | 29 Sep     
UCC3895DWTRG4As of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 5065 | 22 Sep 8 Weeks AmericasAvnet >1k
 >10k | 29 Sep AsiaWPI >1k
UCC3895NAs of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 5 Sep 6 Weeks AmericasArrow 267
  DigiKey >1k
  Mouser Electronics 35
  Newark 73
  Rochester Electronics >1k
  AsiaWPI 55
  EuropeAvnet-SILICA 17
  Farnell 133
  Spoerle 180
UCC3895NG4As of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 5 Sep 6 Weeks EuropeAbacus Polar 40
  EBV Elektronik 10
UCC3895PWAs of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1260* >10k | 6 Oct 6 Weeks AmericasDigiKey 9
  Mouser Electronics 8
  Rochester Electronics >1k
  AsiaWPI 110
  EuropeAvnet-SILICA 140
UCC3895PWG4As of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1260* >10k | 6 Oct 6 Weeks None Reported
View Distributors
   
UCC3895PWTRAs of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 29 Sep 6 Weeks None Reported
View Distributors
   
UCC3895PWTRG4As of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 29 Sep 6 Weeks None Reported
View Distributors
   
UCC3895QAs of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1518* >10k | 14 Oct 6 Weeks AmericasDigiKey 144
  Mouser Electronics 30
UCC3895QG3As of 7:39 AM GMT, 20 Aug 2008As of 7:39 AM GMT, 20 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1518* >10k | 14 Oct 6 Weeks None Reported
View Distributors
   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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

Datasheets

  • BiCMOS Advanced Phase Shift PWM Controller (Rev. L) (ucc3895.pdf, 669 KB)
    09 Apr 2008 Download

Application Notes

  • Current Doubler Rectifier Offers Ripple Current Cancellation (slua323.htm, 8 KB)
    21 Sep 2004 Abstract
  • Synchronous Rectifiers of a Current Doubler (slua287.htm, 8 KB)
    27 Feb 2003 Abstract
  • UCC3895 CD Output Asymmetric Duty Cycle Operation (slua275.htm, 8 KB)
    21 Aug 2002 Abstract
  • A Power Management Solution for Efficient, Multiple Output Applications (slua255.htm, 8 KB)
    04 Oct 2001 Abstract
  • A Comparison Between the BiCMOS UCC3895 Phase Shift Controller and the UC3875 (slua246.htm, 8 KB)
    22 Feb 2001 Abstract
  • DN-63 The Current-Doubler Rectifier: An Alternative Rectification Technique (slua121.htm, 9 KB)
    12 Jan 2001 Abstract
  • U-136A Phase Shifted, Zero Voltage Transition Design Considerations (slua107.htm, 9 KB)
    05 Sep 1999 Abstract

View Application Notes for PWM Power Supply Controllers

User Guides

  • UCC3895EVM-001 Configuring The UCC3895 For Direct Control Driven Synchronous Re (Rev. A) (sluu109a.htm, 9 KB)
    10 Jan 2002 Abstract
  • UCC3895 Advanced Phase Controller Evaluation Board (Rev. A) (sluu069a.pdf, 163 KB)
    18 Oct 2000 Download

View User Guides for PWM Power Supply Controllers

Reference Designs

Description Part # Company
BiCMOS Advanced Phase Shift PWM Controller UCC3895REF Texas Instruments

Tools & Software

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

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