UCC2803 Status: ACTIVE

Low-Power BiCMOS Current-Mode PWM

      
         
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Datasheet

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  • Low-Power BiCMOS Current-Mode PWM (Rev. C) (ucc2803.pdf, 575 KB)
    12 Jan 2005 Download

 UCC1803 UCC2803UCC2803-EP UCC2803-Q1 UCC3803 
TopologyBoost, Flyback, Forward  Boost, Flyback, Forward    Boost, Buck, Flyback, Forward  
Control MethodCurrent Mode  Current Mode  Current Mode  Current Mode  Current Mode  
Duty Cycle(Max)(%)100  100  100  100  100  
PWM Outputs(#)1  1  1  1  1  
Frequency(Max)(kHz)1000  1000  1000  1000  1000  
UVLO Thresholds On/Off(V)4.1/3.6  4.1/3.6  4.1/3.6  4.1/3.6  4.1/3.6  
Pin/Package8CDIP  8PDIP,8SOIC,8TSSOP  8SOIC  8SOIC  8PDIP,8SOIC,8TSSOP  
Regulated Outputs(#)1  1  1  1  1  
 SamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventory

Other qualified versions of UCC2803

Version Part Number Definition
Automotive UCC2803-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
Enhanced Product UCC2803-EP Supports Defense, Aerospace and Medical Applications
Military UCC2803M QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

  • TPS54331: 3A, 28V Input Step Down SWIFT(tm) DC/DC Converter with Eco-mode(tm)
  • TPS54383: Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 300 kHz
  • TPS54286: Dual 2A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz
  • Product Information

    Features

    • 100µA Typical Starting Supply Current
    • 500µA Typical Operating Supply Current
    • Operation to 1MHz
    • Internal Soft Start
    • Internal Fault Soft Start
    • Internal Leading-Edge Blanking of the Current Sense Signal
    • 1 Amp Totem-Pole Output
    • 70ns Typical Response from Current-Sense to Gate Drive Output
    • 1.5% Tolerance Voltage Reference
    • Same Pinout as UC3842 and UC3842A

    Description

    The UCC1800/1/2/3/4/5 family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching power supplies with minimal parts count.

    These devices have the same pin configuration as the UC1842/3/4/5 family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

    The UCC1800/1/2/3/4/5 family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC1803 and UCC1805 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC1802 and UCC1804 make these ideal choices for use in off-line power supplies.

    The UCC180x series is specified for operation from –55°C to +125°C, the UCC280x series is specified for operation from –40°C to +85°C, and the UCC380x series is specified for operation from 0°C to +70°C.

        

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingCAD Design ToolsSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
    UCC2803DACTIVE-40 to 852.25 | 100uSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
    UCC2803DG4ACTIVE-40 to 852.25 | 100uSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
    UCC2803DTRACTIVE-40 to 852.25 | 100uSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    UCC2803DTRG4ACTIVE-40 to 852.25 | 100uSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    UCC2803NACTIVE-40 to 852.25 | 100uPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
    UCC2803NG4ACTIVE-40 to 852.25 | 100uPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
    UCC2803PWACTIVE-40 to 852.30 | 100uTSSOP (PW) | 8 View 150 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    UCC2803PWG4ACTIVE-40 to 852.30 | 100uTSSOP (PW) | 8 View 150 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    UCC2803PWTRACTIVE-40 to 852.40 | 100uTSSOP (PW) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    UCC2803PWTRG4ACTIVE-40 to 852.40 | 100uTSSOP (PW) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase 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

      TI Inventory Status Reported Distributor Inventory
    UCC2803DAs of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 17 Dec 4 Weeks AmericasArrow 396
      Avnet 95
      Newark 108
      Rochester Electronics >1k
      AsiaWPI 165
      EuropeArrow Southern Europe 75
      Avnet-SILICA 821
    UCC2803DG4As of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 17 Dec 4 Weeks EuropeEBV Elektronik 150
    UCC2803DTRAs of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 18 Dec 4 Weeks AmericasArrow >1k
    UCC2803DTRG4As of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* >10k | 18 Dec 4 Weeks None Reported
    View Distributors
       
    UCC2803NAs of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* 3850 | 4 Dec 4 Weeks AmericasAvnet 90
     >10k | 2 Jan DigiKey 136
      Rochester Electronics 44
      EuropeAvnet-SILICA 500
    UCC2803NG4As of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* 3850 | 4 Dec 4 Weeks EuropeEBV Elektronik 25
     >10k | 2 Jan     
    UCC2803PWAs of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     8000*  1 Weeks AmericasMouser Electronics 125
      Rochester Electronics >1k
    UCC2803PWG4As of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     8000* 1 WeeksNone Reported
    View Distributors
       
    UCC2803PWTRAs of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* 4175 | 4 Dec 4 Weeks AmericasRochester Electronics >1k
     >10k | 5 Jan     
    UCC2803PWTRG4As of 8:47 AM GMT, 20 Nov 2008As of 8:47 AM GMT, 20 Nov 2008
     In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
     0* 4175 | 4 Dec 4 Weeks None Reported
    View Distributors
       
     >10k | 5 Jan     
    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
    UCC2803D RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    UCC2803DG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    UCC2803DTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    UCC2803DTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    UCC2803N RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
    UCC2803NG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
    UCC2803PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    UCC2803PWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    UCC2803PWTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
    UCC2803PWTRG4 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

    Datasheets

    • Low-Power BiCMOS Current-Mode PWM (Rev. C) (ucc2803.pdf, 575 KB)
      12 Jan 2005 Download

    Application Notes

    • Understanding Buck-Boost Power Stages in Switchmode Power Supplies (Rev. A) (slva059a.htm, 8 KB)
      28 May 2002 Abstract
    • UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers (slua257.htm, 8 KB)
      07 Feb 2002 Abstract
    • Differences Between the UCC3813 and the UCC3800 PWM Families (slua247.htm, 8 KB)
      02 Jun 2000 Abstract
    • Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (sloa044.htm, 8 KB)
      23 Mar 2000 Abstract
    • DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 (slua084.htm, 8 KB)
      05 Sep 1999 Abstract
    • DN-65 Considerations in Powering BiCMOS ICs (slua081.htm, 8 KB)
      05 Sep 1999 Abstract
    • DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422 (slua046.htm, 9 KB)
      05 Sep 1999 Abstract
    • DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply (slua042.htm, 8 KB)
      05 Sep 1999 Abstract
    • DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range (slua158.htm, 8 KB)
      05 Sep 1999 Abstract
    • U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's (slua149.htm, 9 KB)
      05 Sep 1999 Abstract
    • U-111, Practical Considerations in Current Mode Power Supplies (slua110.htm, 8 KB)
      05 Sep 1999 Abstract
    • DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex (slua185.htm, 8 KB)
      05 Sep 1999 Abstract
    • DN-46 Highly Efficient Low Power DC to DC Inverter Converts +5V Input to -3V Out (slua179.htm, 8 KB)
      05 Sep 1999 Abstract

    View Application Notes for PWM Power Supply Controllers

    User Guides

    View User Guides for PWM Power Supply Controllers

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