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UCC35706 Status: ACTIVE

High Speed Voltage Mode Pulse Width Modulator


      
         
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 UCC35706
TopologyBoost, Buck, Flyback, Forward  
Control MethodVoltage Mode  
Duty Cycle(Max)(%)93  
PWM Outputs(#)1  
Frequency(Max)(kHz)4000  
UVLO Thresholds On/Off(V)12/8  
Pin/Package8MSOP, 8PDIP, 8SOIC  
Regulated Outputs(#)1  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • UCC25706: High Speed Voltage Mode Pulse Width Modulator
  • UCC28610: 12-65W Green-mode Flyback Power Supply Controller
  • TL494: PWM Control Circuit

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Product Information

Features

  • Greater Than 4-MHz Operation
  • Integrated Oscillator / Voltage Feed Forward Compensation
  • >4:1 Input Voltage Range
  • 25-ns Current Limit Delay
  • Programmable Maximum Duty Cycle Clamp
  • Optocoupler Interface
  • 50-uA Start-Up Current
  • 4.2-mA Operating Current @ 1 MHz
  • Smallest Footprint of the 8-pin MSOP Package Minimizes Board Area and Height

Description

The UCC35705 and UCC35706 devices are 8-pin voltage mode primary side controllers with fast over-current protection. These devices are used as core high-speed building blocks in high performance isolated and non-isolated power converters.

UCC35705/UCC35706 devices feature a high speed oscillator with integrated feed-forward compensation for improved converter performance. A typical current sense to output delay time of 25 ns provides fast response to overload conditions. The IC also provides an accurate programmable maximum duty cycle clamp for increased protection which can also be disabled for the oscillator to run at maximum possible duty cycle.

Two UVLO options are offered. The UCC35705 with lower turn-on voltage is intended for dc-to-dc converters while the higher turn-on voltage and the wider UVLO range of the UCC35706 is better suited for offline applications.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UCC35706DACTIVE0 to 701.00 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC35706DG4ACTIVE0 to 701.00 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC35706DGKACTIVE0 to 701.00 | 1kuMSOP (DGK) | 8 View 100 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC35706DGKG4ACTIVE0 to 701.00 | 1kuMSOP (DGK) | 8 View 100 | TUBE  
UCC35706PACTIVE0 to 701.00 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC35706PG4ACTIVE0 to 701.00 | 1kuPDIP (P) | 8 View 50 | 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 9:50 AM GMT, 25 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksUCC35706D
AmericasNewark 374
Rochester Electronics >1k
EuropeAvnet-SILICA 75
WorldwideDigiKey 145
TI Lead Time*: 20 WeeksUCC35706DG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUCC35706DGK
AmericasRochester Electronics >1k
WorldwideDigiKey 125
Mouser Electronics 190
TI Lead Time*: 14 WeeksUCC35706DGKG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUCC35706P
AmericasRochester Electronics >1k
WorldwideDigiKey 129
TI Lead Time*: 14 WeeksUCC35706PG4
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
UCC35706D RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35706DG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35706DGK RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35706DGKG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35706P RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UCC35706PG4 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 UCC35706 Help

Datasheet

Tools & Software

NamePart # Company Tool / Software Type
Free tool: UCC35705/6 Design-in CalculatorUCC35705OR6CALCTexas InstrumentsCalculation Utilities

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TL494 PWM Control Circuit AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
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