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UC2875 Status: ACTIVE

Phase Shift Resonant Controller


      
         
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See Also

  • UCC2895 - This device has SIMILAR FUNCTIONALITY, newer device with better features

Datasheet

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 UC1875 
TopologyFull-Bridge  
Control MethodCurrent Mode, Voltage Mode  
Duty Cycle(Max)(%)100  
PWM Outputs(#)4  
Frequency(Max)(kHz)1000  
UVLO Thresholds On/Off(V)10/7/9.2  
Pin/Package20CDIP, 28LCCC  
Regulated Outputs(#)4  
 Samples
 Inventory

Other qualified versions of UC2875

Version Part Number Definition
Enhanced Product UC2875-EP Supports Defense, Aerospace and Medical Applications
Military UC2875M QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

  • UC3875: Phase Shift Resonant Controller
  • UCC2895: BiCMOS Advanced Phase Shift Resonant Controller
  • UC2875-EP: Enhanced Product Phase Shift Resonant Controller
  • LP2985A-50: Single Output LDO, 150mA, Fixed(5.0V), 1.0% Tolerance, Low Quiescent Current, Low Noise
  • UC3854B: Enhanced High Power Factor Preregulator
  • UC2854B: Enhanced High Power Factor Preregulator

More Related Products

Product Information

Features

  • Zero to 100% Duty Cycle Control
  • Programmable Output Turn-On Delay
  • Compatible with Voltage or Current Mode Topologies
  • Practical Operation at Switching Frequencies to 1MHz
  • Four 2A Totem Pole Outputs
  • 10MHz Error Amplifier
  • Undervoltage Lockout
  • Low Startup Current—150µA
  • Outputs Active Low During UVLO
  • Soft-Start Control
  • Latched Over-Current Comparator With Full Cycle Restart
  • Trimmed Reference

Description

The UC1875 family of integrated circuits implements control of a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other, allowing constant frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance at high frequencies. This family of circuits may be configured to provide control in either voltage or current mode operation, with a separate over-current shutdown for fast fault protection.

A programmable time delay is provided to insert a dead-time at the turn-on of each output stage. This delay, providing time to allow the resonant switching action, is independently controllable for each output pair (A-B, C-D).

With the oscillator capable of operation at frequencies in excess of 2MHz, overall switching frequencies to 1MHz are practical.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UC2875DWPACTIVE-25 to 855.80 | 1kuSOIC (DW) | 28 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2875DWPG4ACTIVE-25 to 855.80 | 1kuSOIC (DW) | 28 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2875DWPTRACTIVE-25 to 855.35 | 1kuSOIC (DW) | 28 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2875DWPTRG4ACTIVE-25 to 855.35 | 1kuSOIC (DW) | 28 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2875NACTIVE-25 to 855.80 | 1kuPDIP (N) | 20 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2875NG4ACTIVE-25 to 855.80 | 1kuPDIP (N) | 20 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2875QPACTIVE-25 to 856.80 | 1kuPLCC (FN) | 28 View 37 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

* 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 9:53 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksUC2875DWP
AmericasRochester Electronics 864
WorldwideMouser Electronics 227
TI Lead Time*: 20 WeeksUC2875DWPG4
AsiaFarnell Asia 129
EuropeFarnell 124
TI Lead Time*: 20 WeeksUC2875DWPTR
None Reported
View Distributors
TI Lead Time*: 20 WeeksUC2875DWPTRG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksUC2875N
AmericasAvnet 76
Newark 40
Rochester Electronics >1k
AsiaWPI 88
EuropeSpoerle 200
WorldwideDigiKey 301
Mouser Electronics 58
TI Lead Time*: 20 WeeksUC2875NG4
AmericasRochester Electronics 1k
AsiaFarnell Asia 222
EuropeFarnell 81
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksUC2875QP
EuropeEBV Elektronik 19
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
UC2875DWP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2875DWPG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2875DWPTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2875DWPTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2875N RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC2875NG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC2875QP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView

* 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 UC2875 Help

Datasheet

Application Notes

View Application Notes for PWM Power Supply Controllers

Tools & Software

NamePart # Company Tool / Software Type
UCC3895 Evaluation ModuleUCC3895EVM-001Texas InstrumentsDevelopment Boards/EVMs

Part # Name Product Family Comments
UCC2895   BiCMOS Advanced Phase Shift Resonant Controller   AC/DC AND DC/DC POWER SUPPLIES - PWM POWER SUPPLY CONTROLLERS   This device has SIMILAR FUNCTIONALITY, newer device with better features  
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