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UC1524A Status: ACTIVE

Advanced Regulating Pulse Width Modulators


      
         
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Datasheet

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 UC1524AUC2524A UC3524A 
TopologyBoost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull  Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull  Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull  
Control MethodVoltage Mode  Voltage Mode  Voltage Mode  
Duty Cycle(Max)(%)50  50  50  
PWM Outputs(#)2  2  2  
Frequency(Max)(kHz)450  450  450  
UVLO Thresholds On/Off(V)7.5/7  7.5/7  7.5/7  
Pin/Package16CDIP, 20LCCC  16PDIP, 16SOIC  16SOIC  
Regulated Outputs(#)2  2  2  
 SamplesSamplesSamples
 InventoryInventoryInventory

Other qualified versions of UC1524A

Version Part Number Definition
Catalog UC3524A TI's standard catalog product

Customers Who Evaluated This Product Also Evaluated

  • TL494: PWM Control Circuit

Product Information

Features

  • Fully Interchangeable with Standard UC1524 Family
  • Precision Reference Internally Trimmed to ±1%
  • High-Performance Current Limit Function
  • Under-Voltage Lockout with Hysteretic Turn-on
  • Start-Up Supply Current Less Than 4mA
  • Output Current to 200mA
  • 60V Output Capability
  • Wide Common-Mode Input Range for both Error and Current Limit Amplifiers
  • PWM Latch Insures Single Pulse per Period
  • Double Pulse Suppression Logic
  • 200ns Shutdown through PWM Latch
  • Guaranteed Frequency Accuracy
  • Thermal Shutdown Protection

Description

The UC1524A family of regulating PWM ICs has been designed to retain the same highly versatile architecture of the industry standard UC1524 (SG1524) while offering substantial improvements to many of its limitations. The UC1524A is pin compatible with "non-A" models and in most existing applications can be directly interchanged with no effect on power supply performance. Using the UC1524A, however, frees the designer from many concerns which typically had required additional circuitry to solve.

The UC1524A includes a precise 5V reference trimmed to ±1% accuracy, eliminating the need for potentiometer adjustments; an error amplifier with an input range which includes 5V, eliminating the need for a reference divider; a current sense amplifier useful in either the ground or power supply output lines; and a pair of 60V, 200mA uncommitted transistor switches which greatly enhance output versatility.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSymbolsFootprintsSamples
5962-8764502EAACTIVE-55 to 1257.08 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1524AJACTIVE-55 to 1253.75 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1524AJ883BACTIVE-55 to 1257.08 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1524ALACTIVE-55 to 1258.84 | 100uLCCC (FK) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1524AL883BACTIVE-55 to 12510.63 | 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 9:56 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 Weeks5962-8764502EA
AmericasArrow 16
Avnet 144
TI Lead Time*: 20 WeeksUC1524AJ
AmericasArrow 941
Avnet 110
EuropeArrow Northern Europe 7
Avnet-SILICA 50
Spoerle 33
TI Lead Time*: 20 WeeksUC1524AJ883B
AmericasArrow >1k
Avnet 57
EuropeEBV Elektronik 8
TI Lead Time*: 20 WeeksUC1524AL
None Reported
View Distributors
TI Lead Time*: 20 WeeksUC1524AL883B
AmericasRochester Electronics 299
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
5962-8764502EA  TBD A42  N/A for Pkg TypeViewView
UC1524AJ  TBD A42  N/A for Pkg TypeViewView
UC1524AJ883B  TBD A42  N/A for Pkg TypeViewView
UC1524AL  TBD POST-PLATE N/A for Pkg TypeViewView
UC1524AL883B  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 UC1524A Help

Datasheet

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TL494 PWM Control Circuit AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.

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