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UCC3809-2 Status: ACTIVE

Economy Primary Side Controller


      
         
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Special Note

You can program this part for 90% Maximum Duty Cycle for frequencies of 250kHz or less with added components, per SLUA251


Datasheet

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 UCC2809-1 UCC2809-2 UCC3809-1 UCC3809-2
TopologyBoost, Flyback, Forward  Boost, Flyback, Forward  Boost, Buck, Flyback, Forward  Boost, Buck, Flyback, Forward  
Control MethodCurrent Mode  Current Mode  Current Mode  Current Mode  
Duty Cycle(Max)(%)70  70  70  70  
PWM Outputs(#)1  1  1  1  
Frequency(Max)(kHz)1000  1000  1000  1000  
UVLO Thresholds On/Off(V)10/8  15/8  10/8  15/8  
Pin/Package8MSOP, 8SOIC, 8TSSOP  8MSOP, 8SOIC, 8TSSOP  8MSOP, 8PDIP, 8SOIC, 8TSSOP  8MSOP, 8PDIP, 8SOIC, 8TSSOP  
Regulated Outputs(#)1  1  1  1  
Thermal ShutdownNo  No  No  No  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • UCC3809-1: Economy Primary Side Controller
  • UCC3809: Economy Primary Side Controller Family
  • TPS54231: 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™
  • TPS54310: 3V to 6V, 3A Synchronous Step Down SWIFT™ Converter
  • TPS54160: 3.5V to 60V, 1.5A Step Down SWIFT™ Converter with Eco-Mode™

Product Information

Features

  • User Programmable Soft Start With Active Low Shutdown
  • User Programmable Maximum Duty Cycle
  • Accessible 5V Reference
  • Undervoltage Lockout
  • Operation to 1MHz
  • 0.4A Source/0.8A Sink FET Driver
  • Low 100µA Startup Current

Description

The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. Internally implemented circuits include undervoltage lockout featuring startup current less than 100µA, a user accessible voltage reference, logic to ensure latched operation, a PWM comparator, and a totem pole output stage to sink or source peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state.

Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3809 family also features full cycle soft start.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UCC3809D-2ACTIVE0 to 701.00 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3809D-2G4ACTIVE0 to 701.00 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3809DTR-2ACTIVE0 to 700.90 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3809DTR-2G4ACTIVE0 to 700.90 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3809N-2ACTIVE0 to 701.15 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3809N-2G4ACTIVE0 to 701.15 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3809P-2ACTIVE0 to 701.00 | 1kuMSOP (DGK) | 8 View 80 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3809P-2G4ACTIVE0 to 701.00 | 1kuMSOP (DGK) | 8 View 80 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3809PTR-2ACTIVE 0.90 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3809PTR-2G4ACTIVE 0.90 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC3809PW-2ACTIVE0 to 701.15 | 1kuTSSOP (PW) | 8 View 150 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC3809PW-2G4ACTIVE0 to 701.15 | 1kuTSSOP (PW) | 8 View 150 | 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 9:49 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksUCC3809D-2
AmericasRochester Electronics 1
AsiaWPI 89
WorldwideDigiKey 16
TI Lead Time*: 20 WeeksUCC3809D-2G4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC3809DTR-2
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC3809DTR-2G4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUCC3809N-2
AmericasRochester Electronics >1k
WorldwideDigiKey 209
TI Lead Time*: 14 WeeksUCC3809N-2G4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC3809P-2
AmericasRochester Electronics 782
AsiaWPI 115
WorldwideDigiKey 58
TI Lead Time*: 20 WeeksUCC3809P-2G4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC3809PTR-2
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC3809PTR-2G4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC3809PW-2
AmericasArrow 150
Avnet >1k
Rochester Electronics >1k
EuropeAvnet-SILICA 100
WorldwideDigiKey 195
TI Lead Time*: 20 WeeksUCC3809PW-2G4
WorldwideDigiKey  Available
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
UCC3809D-2 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC3809D-2G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC3809DTR-2 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC3809DTR-2G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC3809N-2 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UCC3809N-2G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UCC3809P-2 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3809P-2G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3809PTR-2 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3809PTR-2G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3809PW-2 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC3809PW-2G4 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 UCC3809-2 Help

Datasheet

Application Notes

View Application Notes for PWM Power Supply Controllers

User Guides

View User Guides for PWM Power Supply Controllers

Reference Designs

Description Part # Company
Flyback with Vin 36-72 V and Vout +/- 135 V PMP069 Texas Instruments
Power Over Ethernet - Sync Flyback Reference Design PMP411 Texas Instruments
Power Over Ethernet - Sync Flyback Reference Design PMP386 Texas Instruments
Single Transistor Forward Reference Design PMP180 Texas Instruments
Sync. Buck with Integrated FET, Forward, Dual Sync. Buck Reference Design PMP041 Texas Instruments

Tools & Software

NamePart # Company Tool / Software Type
UCC3809 Evaluation ModuleUCC3809EVMTexas InstrumentsDevelopment Boards/EVMs

Simulation Models

Customers Who Evaluated This Product Also Evaluated...
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TPS54386 Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS61085 18.5V, 2A, 650kHz, 1.2MHz Step-Up DC-DC Converter with Forced PWM Mode DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS TI customers also evaluated this product.
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