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UC1823A Status: ACTIVE

High Speed PWM Controller


      
         
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 UC1823AUC2823A UC3823A 
TopologyBoost, Buck, Flyback, Forward  Boost, Buck, Flyback, Forward  Boost, Buck, Flyback, Forward  
Control MethodCurrent Mode  Current Mode  Current Mode, Voltage Mode  
Duty Cycle(Max)(%)100  100  100  
PWM Outputs(#)1  1  1  
Frequency(Max)(kHz)1000  1000  1000  
UVLO Thresholds On/Off(V)16/10  16/10  16/10  
Pin/Package16CDIP, 20LCCC  16PDIP, 16SOIC, 20PLCC  16PDIP, 16SOIC  
Regulated Outputs(#)1  1  1  
 SamplesSamplesSamples
 InventoryInventoryInventory

Other qualified versions of UC1823A

Version Part Number Definition
Catalog UC3823A TI's standard catalog product
Space UC1823A-SP Radiation tolerant, ceramic packaging and qualified for use in Space-based application

Customers Who Evaluated This Product Also Evaluated

  • UC1825: High Speed PWM Controller
  • UC1823: High Speed PWM Controller

Product Information

Features

  • Improved versions of the UC3823/UC3825 PWMs
  • Compatible with Voltage-Mode or Current-Mode Control Methods
  • Practical Operation at Switching Frequencies to 1MHz
  • 50-ns Propagation Delay to Output
  • High-Current Dual Totem Pole Outputs (2-A Peak)
  • Trimmed Oscillator Discharge Current
  • Low 100-µA Startup Current
  • Pulse-by-Pulse Current Limiting Comparator
  • Latched Overcurrent Comparator With Full Cycle Restart

Description

The UC3823A and UC3823B and the UC3825A and UC3825B family of PWM controllers are improved versions of the standard UC3823 and UC3825 family. Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth product is 12 MHz, while input offset voltage is 2 mV. Current limit threshold is assured to a tolerance of 5%. Oscillator discharge current is specified at 10 mA for accurate dead time control. Frequency accuracy is improved to 6%. Startup supply current, typically 100 µA, is ideal for off-line applications. The output drivers are redesigned to actively sink current during UVLO at no expense to the startup current specification. In addition each output is capable of 2-A peak currents during transitions.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)DSCC #Price | QuantityPackage | PinsPackage QTY | Package CarrierSymbolsFootprintsSamples
5962-89905022AACTIVE-55 to 125 27.39 | 100uLCCC (FK) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
5962-8990502EAACTIVE-55 to 125 21.56 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC1823AJACTIVE-55 to 125 14.63 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1823AJ883BACTIVE-55 to 1255962-8990502EA21.56 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1823ALACTIVE-55 to 125 21.94 | 100uLCCC (FK) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1823AL883BACTIVE-55 to 1255962-89905022A27.39 | 100uLCCC (FK) | 20 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, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 8 Weeks5962-89905022A
None Reported
View Distributors
TI Lead Time*: 8 Weeks5962-8990502EA
AmericasRochester Electronics 15
EuropeAvnet-SILICA 6
TI Lead Time*: 8 WeeksUC1823AJ
EuropeAvnet-SILICA 100
EBV Elektronik 9
TI Lead Time*: 8 WeeksUC1823AJ883B
None Reported
View Distributors
TI Lead Time*: 8 WeeksUC1823AL
AmericasRochester Electronics 56
TI Lead Time*: 8 WeeksUC1823AL883B
EuropeEBV Elektronik 5
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
5962-89905022A  TBD POST-PLATE N/A for Pkg TypeViewView
5962-8990502EA  TBD A42  N/A for Pkg TypeViewView
UC1823AJ  TBD A42  N/A for Pkg TypeViewView
UC1823AJ883B  TBD A42  N/A for Pkg TypeViewView
UC1823AL  TBD POST-PLATE N/A for Pkg TypeViewView
UC1823AL883B  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 UC1823A Help

Datasheet

Application Notes

View Application Notes for PWM Power Supply Controllers

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
UC1825 High Speed PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC1823 High Speed PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.

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