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UCC28230 Status: ACTIVE

Advanced PWM Controller for Bus Converters


      
         
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Datasheet

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 UCC28230UCC28231 
TopologyPush-Pull, Half-Bridge, Full-Bridge  Push-Pull, Half-Bridge, Full-Bridge  
Control MethodVoltage Mode   
Duty Cycle(Max)(%)100  100  
PWM Outputs(#)4  4  
Frequency(Max)(kHz)1000  1000  
UVLO Thresholds On/Off(V)6.3/5.7  6.3/5.7  
Pin/Package12SON, 14TSSOP  12SON, 14TSSOP  
Regulated Outputs(#)4  4  
 SamplesSamples
 InventoryInventory

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  • TPS2062A: Current-limited, Power Distribution Switches
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Product Information

Features

  • Programmable, Load Depended Off Time Control
  • Frequency Controlled Start Up Allows Small Output Inductor, Low Ripple and Constant Current Start with Large Output Capacitor
  • Two 0.2-A Push-Pull Outputs Provide Matched Control Signals D to External Drivers
  • Two Additional 1- D Outputs for Optimal Use of Self-Driven or Control Driven Synchronous Rectifiers
  • Unregulated, Fixed Volt-Second or Fixed Frequency Modes set by User
  • Two, 1.5% Overall Accuracy Reference Voltage Options: 5-V for UCC28230 and 3.3-V for UCC28231
  • Resistor Programmable Switching Frequency up to 1 MHz
  • Cycle-by-Cycle Current Limit Allows Parallel Operation with Droop Based Current Sharing
  • Single External Capacitor sets Soft-Start and Over Current Hiccup Mode Parameters with Restart
  • Severe Short Circuit Hiccup with Restart or Latch Off Protection Option by External Resistor
  • Input Under Voltage Lock Out
  • Thermal Shutdown
  • Thermally Enhanced 3 mm × 2 mm SON-12 and TSSOP-14 Package Options
  • APPLICATIONS
    • Intermediate Bus Isolated Converters
    • DC-to-DC Transformers

Description

The UCC28230, UCC28231 PWM bus controllers are optimized for use in high efficiency, high power density, unregulated intermediate bus converters. Topologies include push-pull, half-bridge and full-bridge. External drivers, such asthe UCC27200 120-V high-side/low-side drivers, can be used with this controller.

Low cost, small size and highly efficient solutions are provided by innovations such as:

  • Start-up frequency control circuit allowing small output inductor andthe ability to start with large intermediate bus capacitor.
  • Load depended off-time control set by user.

Additional 1-D control outputs can be used for primary winding clamping in self-driven output synchronous rectifier applications or as drive signals for the control-driven synchronous rectifier.

Cycle-by-cycle current limit prevents overstresses of converter. If the over current condition causes less than 80% duty cycle at the output, then after a programmed time the controller proceeds into periodical shutdown and restart hiccup mode.

The UCC28230 provides 5 V, and the UCC28231 provides 3.3-V precision reference voltages with 1.5% overall accuracy and 10-mA output current. This reference voltage can be used to supply housekeeping circuit and/or microcontroller. The precision reference voltage can also be used for accurate setting of system parameters.

Other features include under-voltage lockout, thermal shut down, programmable soft start, over-current hiccup mode and short circuit protection with internal restart by default that can be set into latch-off mode by an external resistor.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
UCC28230DRNRACTIVE-55 to 1251.20 | 1kuSON (DRN) | 12 View 3000 | LARGE T&RPurchase Samples
UCC28230DRNRG4ACTIVE-55 to 1251.20 | 1kuSON (DRN) | 12 View 3000 | LARGE T&RPurchase Samples
UCC28230DRNTACTIVE-55 to 1251.35 | 1kuSON (DRN) | 12 View 250 | SMALL T&R
UCC28230DRNTG4ACTIVE-55 to 1251.35 | 1kuSON (DRN) | 12 View 250 | SMALL T&R
UCC28230PWACTIVE-55 to 1251.35 | 1kuTSSOP (PW) | 14 View 90 | TUBEPurchase Samples
UCC28230PWG4ACTIVE-55 to 1251.35 | 1kuTSSOP (PW) | 14 View 90 | TUBEPurchase Samples
UCC28230PWRACTIVE-55 to 1251.20 | 1kuTSSOP (PW) | 14 View 2000 | LARGE T&R
UCC28230PWRG4ACTIVE-55 to 1251.20 | 1kuTSSOP (PW) | 14 View 2000 | LARGE T&R

* 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 9:47 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksUCC28230DRNR
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksUCC28230DRNRG4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksUCC28230DRNT
AmericasAvnet 500
AsiaWPI >1k
WorldwideDigiKey 323
Mouser Electronics 250
TI Lead Time*: 4 WeeksUCC28230DRNTG4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksUCC28230PW
AmericasArrow 360
Newark 360
AsiaFarnell Asia 180
WPI 950
EuropeFarnell 180
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksUCC28230PWG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUCC28230PWR
WorldwideDigiKey >1k
Mouser Electronics >1k
TI Lead Time*: 20 WeeksUCC28230PWRG4
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
UCC28230DRNR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28230DRNRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28230DRNT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28230DRNTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28230PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28230PWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28230PWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
UCC28230PWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* 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

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Datasheet

User Guides

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Tools & Software

NamePart # Company Tool / Software Type
UCC28230 Intermediate Bus Converter 300-W Evaluation ModuleUCC28230EVMTexas InstrumentsDevelopment Boards/EVMs

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