UC1875 Status: ACTIVE

Phase Shift Resonant Controller


      
         
Alert me about changes<br/>to this product


Datasheet

Download - PDF Icon

 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 UC1875

Version Part Number Definition
Catalog UC3875 TI's standard catalog product
Space UC1875-SP Radiation tolerant, ceramic packaging and qualified for use in Space-based application

Customers Who Evaluated This Product Also Evaluated

  • UCC3895: BiCMOS Advanced Phase Shift PWM Controller
  • UCC1895: BiCMOS Advanced Phase Shift Resonant Controller
  • UC3875: Phase Shift Resonant Controller

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)DSCC #Price | QuantityPackage | PinsPackage QTY | Package CarrierSymbolsFootprintsSamples
5962-9455501M3AACTIVE-55 to 125 29.00 | 100uLCCC (FK) | 28 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
5962-9455501MRAACTIVE-55 to 125 19.76 | 100uCDIP (J) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC1875JACTIVE-55 to 125 12.86 | 100uCDIP (J) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1875J883BACTIVE-55 to 1255962-9455501MRA19.76 | 100uCDIP (J) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1875LACTIVE-55 to 125 22.44 | 100uLCCC (FK) | 28 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1875L883BACTIVE-55 to 1255962-9455501M3A29.00 | 100uLCCC (FK) | 28 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office

* 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 9:55 AM GMT, 25 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 8 Weeks5962-9455501M3A
None Reported
View Distributors
TI Lead Time*: 8 Weeks5962-9455501MRA
AmericasArrow 1
Avnet 12
TI Lead Time*: 8 WeeksUC1875J
AmericasAvnet 29
EuropeArrow Southern Europe 10
TI Lead Time*: 8 WeeksUC1875J883B
None Reported
View Distributors
TI Lead Time*: 8 WeeksUC1875L
AmericasArrow 10
TI Lead Time*: 8 WeeksUC1875L883B
AmericasRochester Electronics 43
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
5962-9455501M3A  TBD POST-PLATE N/A for Pkg TypeViewView
5962-9455501MRA  TBD A42  N/A for Pkg TypeViewView
UC1875J  TBD A42  N/A for Pkg TypeViewView
UC1875J883B  TBD A42  N/A for Pkg TypeViewView
UC1875L  TBD POST-PLATE N/A for Pkg TypeViewView
UC1875L883B  TBD POST-PLATE 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 UC1875 Help

Datasheet

Application Notes

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
UCC3895 BiCMOS Advanced Phase Shift PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UCC1895 BiCMOS Advanced Phase Shift Resonant Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC3875 Phase Shift Resonant Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC2875-EP Enhanced Product Phase Shift Resonant Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here