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UCC28515 Status: ACTIVE

Advanced PFC/PWM Combination Controllers


      
         
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Datasheet

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 UCC28515
UVLO Thresholds On/Off(V)10.2/9.7  
Operating Supply(Max)(V)18  
Startup Current(mA)0.1  
Operating Supply Current(mA)4  
Practical Operating Frequency(Max)(MHz)0.5  
Pin/Package20PDIP, 20SOIC  
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 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • UCC28070: Two-Phase Interleaved CCM PFC Controller
  • UC2853A: High Power Factor Preregulator
  • UCC28514: Advanced PFC/PWM Combination Controllers
  • UC3842A: Current Mode PWM Controller

More Related Products

Product Information

Features

  • Provides Control of PFC and PWM Power Stages In One Device
  • Leading-Edge PFC, Trailing-Edge PWM Modulation for Reduced Ripple
  • Built-In Sequencing of PFC and PWM Turn-On
  • 2-A Source and 3-A Sink Gate Drive for Both PFC and PWM Stages
  • Typical 16-ns Rise Time and 7-ns Fall Time into 1-nF Loads
  • PFC Features
    • Average-Current-Mode Control for Continuous Conduction Mode Operation
    • Highly-Linear Multiplier for Near-Unity Power Factor
    • Input Voltage Feedforward Implementation
    • Improved Load Transient Response
    • Accurate Power Limiting
    • Zero Power Detect
  • PWM Features
    • Peak-Current-Mode Control Operation
    • 1:1 or 1:2 PFC:PWM Frequency Options
    • Programmable maximum duty cycle
    • Programmable Soft-Start
    • Two Hysteresis Options for Differing Hold-Up Time Requirements

Description

The UCC28510 series of combination PFC/PWM controllers provide complete control functionality for any off-line power system requiring compliance with the IEC1000–3–2 harmonic reduction requirements. By combining the control and drive signals for the PFC and the PWM stages into a single device, significant performance and cost benefits are gained. By managing the modulation mechanisms of the two stages (leading-edge modulation for PFC and trailing-edge modulation for PWM), the ripple current in the boost capacitor is minimized.

Based on the average current mode control architecture with input voltage feedforward of prior PFC/PWM combination controllers, these devices offer performance advantages. Two new key PWM features are programmable maximum duty cycle and the 2x PWM frequency options to the base PFC frequency. For the PFC stage, the devices feature an improved multiplier and the use of a transconductance amplifier for enhanced transient response.

The core of the PFC section is in a three-input multiplier that generates the reference signal for the line current. The UCC28510 series features a highly linearized multiplier circuit capable of producing a low distortion reference for the line current over the full range of line and load conditions. A low-offset, high-bandwidth current error amplifier ensures that the actual inductor current (sensed through a resistor in the return path) follows the multiplier output command signal. The output voltage error is processed through a transconductance voltage amplifier.

The transient response of the circuit is enhanced by allowing a much faster charge/discharge of the voltage amplifier output capacitance when the output voltage falls outside a certain regulation window. A number of additional features such as UVLO circuit with selectable hysteresis levels, an accurate reference voltage for the voltage amplifier, zero power detect, OVP/enable, peak current limit, power limiting, high-current output gate driver characterize the PFC section.

The PWM section features peak current mode control (with a ramp signal available to add slope compensation), programmable soft-start, accurate maximum duty cycle clamp, peak current limit and high-current output gate driver. The oscillator for the combination controller is available in two versions. In UCC28510, UCC28511, UCC28512, and UCC28513, the PWM and the PFC circuits are switched at the same frequency. In the UCC28514, UCC28515, UCC28516, and UCC28517, the PWM stage frequency is twice that of the PFC frequency. The PWM stage is suppressed until the PFC output has reached 90% of its programmed value during startup. During line dropout and turn off, the device allows the PWM stage to operate until the PFC output has dropped to 47% (UCC28512, UCC28513, UCC28516, and UCC28517) or 71% (UCC28510, UCC28511, UCC28514, and UCC28515) of its nominal value. See available options table on page 1 for a summary of options.

The UCC28510 family also features leading-edge modulation for the PFC stage and trailing-edge modulation for the PWM stage in order to reduce the ripple current in the boost output capacitor. The current amplifier implementation associated with this scheme also results in better noise immunity.

Available in 20-pin N and DW packages.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UCC28515DWACTIVE-40 to 1052.10 | 1kuSOIC (DW) | 20 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC28515DWG4ACTIVE-40 to 1052.10 | 1kuSOIC (DW) | 20 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC28515DWRACTIVE-40 to 1051.90 | 1kuSOIC (DW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC28515DWRG4ACTIVE-40 to 1051.90 | 1kuSOIC (DW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UCC28515NACTIVE-40 to 1052.55 | 1kuPDIP (N) | 20 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UCC28515NE4ACTIVE-40 to 1052.55 | 1kuPDIP (N) | 20 View 20 | 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 9:41 AM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 1 WeekUCC28515DW
AsiaWPI 47
WorldwideDigiKey 105
TI Lead Time*: 1 WeekUCC28515DWG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC28515DWR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC28515DWRG4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksUCC28515N
AmericasRochester Electronics >1k
AsiaWPI 66
WorldwideDigiKey 296
TI Lead Time*: 4 WeeksUCC28515NE4
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
UCC28515DW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28515DWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28515DWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28515DWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28515N RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
UCC28515NE4 RoHS Compliant Pb-Free (RoHS) 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 UCC28515 Help

Datasheet

Application Notes

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User Guides

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Tools & Software

NamePart # Company Tool / Software Type
UCC28514 Evaluation ModuleUCC28514EVMTexas InstrumentsDevelopment Boards/EVMs
UCC28521 Evaluation ModuleUCC28521EVMTexas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
UCC28070 Two-Phase Interleaved CCM PFC Controller AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS TI customers also evaluated this product.
UC2853A High Power Factor Preregulator AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS TI customers also evaluated this product.
UCC28514 Advanced PFC/PWM Combination Controllers AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS TI customers also evaluated this product.
UCC28050 Transition Mode PFC Controller AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS TI customers also evaluated this product.
UCC28511 Advanced PFC/PWM Combination Controllers AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS TI customers also evaluated this product.
UCC38500 BiCMOS PFC/PWM Combination Controller AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS TI customers also evaluated this product.
UCC28510 Advanced PFC/PWM Combination Controllers AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS TI customers also evaluated this product.
UCC28528 Advanced PWM/PFC Combination Controller with TEM/TEM Modulation AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS TI customers also evaluated this product.
UC3842A Current Mode PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.

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