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UCC25706 Status: ACTIVE

High Speed Voltage Mode Pulse Width Modulator


      
         
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 UCC25706
TopologyBoost, 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

  • UCC35706: High Speed Voltage Mode Pulse Width Modulator
  • UCC3581: Micropower Voltage Mode PWM
  • UC2841: Programmable, Off-Line, PWM Controller

More Related Products

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
UCC25706DACTIVE-40 to 851.10 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC25706DG4ACTIVE-40 to 851.10 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC25706DGKACTIVE-40 to 851.10 | 1kuMSOP (DGK) | 8 View 80 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC25706DGKG4ACTIVE-40 to 851.10 | 1kuMSOP (DGK) | 8 View 80 | TUBE  
UCC25706PACTIVE-40 to 851.10 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC25706PG4ACTIVE-40 to 851.10 | 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 9:51 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksUCC25706D
AmericasArrow 100
Newark 300
Rochester Electronics >1k
WorldwideDigiKey 146
Mouser Electronics 300
TI Lead Time*: 20 WeeksUCC25706DG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUCC25706DGK
AmericasRochester Electronics >1k
WorldwideDigiKey 168
Mouser Electronics 170
TI Lead Time*: 14 WeeksUCC25706DGKG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUCC25706P
AmericasNewark 300
Rochester Electronics >1k
AsiaFarnell Asia 300
WorldwideDigiKey 111
TI Lead Time*: 14 WeeksUCC25706PG4
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
UCC25706D RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC25706DG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC25706DGK RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC25706DGKG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC25706P RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UCC25706PG4 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 UCC25706 Help

Datasheet

Tools & Software

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

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
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UCC3581 Micropower Voltage Mode PWM AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC2841 Programmable, Off-Line, PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC25705 High Speed Voltage Mode Pulse Width Modulator AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC2581 Micropower Voltage Mode PWM AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC3889 Off-Line Power Supply Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC3823B High Speed PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC35705 High Speed Voltage Mode Pulse Width Modulator AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC3862 Resonant-Mode Power Supply Controllers AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
SG2524 Regulating Pulse-Width Modulator AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.

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