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UCC35705 Status: ACTIVE

High Speed Voltage Mode Pulse Width Modulator


      
         
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 UCC35705
TopologyBoost, Buck, Flyback, Forward  
Control MethodVoltage Mode  
Duty Cycle(Max)(%)93  
PWM Outputs(#)1  
Frequency(Max)(kHz)4000  
UVLO Thresholds On/Off(V)8.8/8.2  
Pin/Package8MSOP, 8PDIP, 8SOIC  
Regulated Outputs(#)1  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • UCC35702: Advanced Voltage Mode Pulse Width Modulator
  • UC3823: High Speed PWM Controller
  • UCC3888: Off-Line Power Supply 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
UCC35705DACTIVE0 to 700.90 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC35705DG4ACTIVE0 to 700.90 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC35705DGKACTIVE0 to 701.05 | 1kuMSOP (DGK) | 8 View 80 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC35705DGKG4ACTIVE0 to 701.05 | 1kuMSOP (DGK) | 8 View 80 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC35705DGKTRACTIVE0 to 700.95 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC35705DGKTRG4ACTIVE0 to 700.95 | 1kuMSOP (DGK) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC35705DTRACTIVE0 to 700.95 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC35705DTRG4ACTIVE0 to 700.95 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC35705PACTIVE0 to 701.05 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC35705PG4ACTIVE0 to 701.05 | 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 9:49 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksUCC35705D
AmericasNewark >1k
Rochester Electronics >1k
AsiaWPI 74
EuropeAvnet-SILICA 150
WorldwideDigiKey 156
TI Lead Time*: 20 WeeksUCC35705DG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUCC35705DGK
AmericasNewark 390
Rochester Electronics >1k
WorldwideDigiKey 101
TI Lead Time*: 14 WeeksUCC35705DGKG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUCC35705DGKTR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUCC35705DGKTRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC35705DTR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC35705DTRG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUCC35705P
AmericasAvnet 150
Rochester Electronics >1k
WorldwideDigiKey 139
TI Lead Time*: 14 WeeksUCC35705PG4
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
UCC35705D RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35705DG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35705DGK RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35705DGKG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35705DGKTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35705DGKTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35705DTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35705DTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UCC35705P RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UCC35705PG4 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 UCC35705 Help

Datasheet

User Guides

View User Guides for PWM Power Supply Controllers

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
UCC35702 Advanced Voltage Mode Pulse Width Modulator AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC3823 High Speed PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC3888 Off-Line Power Supply Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
TL494 PWM Control Circuit AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC35701 Advanced Voltage Mode Pulse Width Modulator AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC3581 Micropower Voltage Mode PWM AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC25701 Advanced Voltage Mode Pulse Width Modulator AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
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