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UC2525A Status: ACTIVE

Regulating Pulse Width Modulators


      
         
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Datasheet

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 UC1525A UC2525AUC3525A 
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)7/6.8  7/6.8  7/6.8  
Pin/Package16CDIP, 20LCCC  16PDIP, 16SOIC  16PDIP, 16SOIC, 20PLCC  
Regulated Outputs(#)2  2  2  
 SamplesSamplesSamples
 InventoryInventoryInventory

Other qualified versions of UC2525A

Version Part Number Definition
Military UC2525AM QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

  • UC2524A: Advanced Regulating Pulse Width Modulators
  • UC1525A: Regulating Pulse Width Modulators
  • UC3525A: Regulating Pulse Width Modulators

More Related Products

Product Information

Features

  • 8-V to 35-V Operation
  • 5.1-V Reference Trimmed to ±1%
  • 100-Hz to 500-kHz Oscillator Range
  • Separate Oscillator Sync Terminal
  • Adjustable Deadtime Control
  • Internal Soft-Start
  • Pulse-by-Pulse Shutdown
  • Input Undervoltage Lockout With Hysteresis
  • Latching PWM to Prevent Multiple Pulses
  • Dual Source/Sink Output Drivers

Description

The UC1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip +5.1-V reference is trimmed to ±1% and the input common-mode range of the error amplifier includes the reference voltage, eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between the CT and the discharge terminals provides a wide range of dead-time adjustment. These devices also feature built-in soft-start circuitry with only an external timing capacitor required.

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Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
UC2525ADWACTIVE-25 to 852.00 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2525ADWG4ACTIVE-25 to 852.00 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2525ADWTRACTIVE-25 to 851.95 | 1kuSOIC (DW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2525ADWTRG4ACTIVE-25 to 851.95 | 1kuSOIC (DW) | 16 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2525ANACTIVE-25 to 852.40 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2525ANG4ACTIVE-25 to 852.40 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2525BDWACTIVE-25 to 854.10 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2525BDWG4ACTIVE-25 to 854.10 | 1kuSOIC (DW) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
UC2525BNACTIVE-25 to 854.10 | 1kuPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC2525BNG4ACTIVE-25 to 854.10 | 1kuPDIP (N) | 16 View 25 | 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 9:55 AM GMT, 24 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksUC2525ADW
AmericasArrow 17
Avnet 109
Rochester Electronics 80
EuropeAvnet-SILICA 40
WorldwideDigiKey 50
TI Lead Time*: 20 WeeksUC2525ADWG4
EuropeEBV Elektronik >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUC2525ADWTR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUC2525ADWTRG4
EuropeEBV Elektronik 1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUC2525AN
AmericasArrow 100
Newark 123
Rochester Electronics 260
AsiaFarnell Asia 123
WPI 54
WorldwideDigiKey 45
Mouser Electronics 61
TI Lead Time*: 20 WeeksUC2525ANG4
AsiaFarnell Asia 146
EuropeEBV Elektronik 150
Farnell 144
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksUC2525BDW
AmericasArrow 55
Rochester Electronics 370
AsiaWPI 74
EuropeAvnet-SILICA 25
EBV Elektronik 20
WorldwideDigiKey 908
TI Lead Time*: 20 WeeksUC2525BDWG4
WorldwideDigiKey  Available
TI Lead Time*: 14 WeeksUC2525BN
AmericasArrow 285
Rochester Electronics 788
WorldwideMouser Electronics 25
TI Lead Time*: 14 WeeksUC2525BNG4
None Reported
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** 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
UC2525ADW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2525ADWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2525ADWTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2525ADWTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2525AN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC2525ANG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC2525BDW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2525BDWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
UC2525BN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
UC2525BNG4 RoHS Compliant 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

Application Notes

View Application Notes for PWM Power Supply Controllers

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
UC2524A Advanced Regulating Pulse Width Modulators AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC1525A Regulating Pulse Width Modulators AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC3525A Regulating Pulse Width Modulators AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC3824 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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