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UC3524A Status: ACTIVE

Advanced Regulating Pulse Width Modulators


      
         
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Datasheet

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 UC1524A UC2524A 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 UC3524A

Version Part Number Definition
Catalog UC3524AM TI's standard catalog product
Military UC1524A QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

  • TL494: PWM Control Circuit
  • SG3524: Regulating Pulse-Width Modulators
  • UC2524A: Advanced Regulating Pulse Width Modulators

More Related Products

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)Replaced ByPrice | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UC3524ADWACTIVE0 to 70 1.85 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC3524ADWG4ACTIVE0 to 70 1.85 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC3524ADWTRACTIVE0 to 70 1.80 | 1kuSOIC (DW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC3524ADWTRG4ACTIVE0 to 70 1.80 | 1kuSOIC (DW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC3524ANNRND0 to 70 1.85 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintNot Available
UC3524ANG4NRND0 to 70UC3524AN1.85 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintReplaced by UC3524AN

* 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 9:54 AM GMT, 24 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksUC3524ADW
AmericasAvnet 599
Newark 540
Rochester Electronics >1k
AsiaFarnell Asia 540
EuropeArrow Northern Europe 140
Avnet-SILICA >1k
EBV Elektronik 21
WorldwideDigiKey 92
TI Lead Time*: 20 WeeksUC3524ADWG4
EuropeEBV Elektronik >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUC3524ADWTR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUC3524ADWTRG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUC3524AN
AmericasArrow 453
Avnet 158
Newark 414
AsiaFarnell Asia 402
WPI 175
EuropeArrow Southern Europe >1k
Avnet-SILICA >1k
EBV Elektronik 4
Farnell 189
Spoerle >1k
WorldwideDigiKey >1k
Mouser Electronics 309
TI Lead Time*: 14 WeeksUC3524ANG4
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
UC3524ADW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC3524ADWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC3524ADWTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC3524ADWTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC3524AN  Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC3524ANG4  Green (RoHS & no Sb/Br) CU NIPDAU 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

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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.
SG3524 Regulating Pulse-Width Modulators AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC2524A Advanced Regulating Pulse Width Modulators AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC3524 Advanced Regulating Pulse Width Modulators AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.

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