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UC1525A Status: ACTIVE

Regulating Pulse Width Modulators


      
         
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Datasheet

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 UC1525AUC2525A UC3525A 
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 UC1525A

Version Part Number Definition
Catalog UC3525A TI's standard catalog product

Customers Who Evaluated This Product Also Evaluated

  • UC2525A: Regulating Pulse Width Modulators
  • UC1524A: Advanced Regulating Pulse Width Modulators

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)DSCC #Price | QuantityPackage | PinsPackage QTY | Package CarrierSymbolsFootprintsSamples
5962-89511012AACTIVE-55 to 125 20.63 | 100uLCCC (FK) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
5962-89511032AACTIVE-55 to 125 11.54 | 100uLCCC (FK) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
5962-8951103EAACTIVE-55 to 125 5.78 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
UC1525AJACTIVE-55 to 125 4.89 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1525AJ883BACTIVE-55 to 1255962-8951103EA5.78 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1525ALACTIVE-55 to 125 8.84 | 100uLCCC (FK) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintContact TI Distributor or Sales Office
UC1525AL883BACTIVE-55 to 1255962-89511032A11.54 | 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 Weeks5962-89511012A
AmericasRochester Electronics 103
TI Lead Time*: 8 Weeks5962-89511032A
AmericasRochester Electronics 22
TI Lead Time*: 8 Weeks5962-8951103EA
AmericasArrow 1
Avnet 80
Rochester Electronics 25
TI Lead Time*: 8 WeeksUC1525AJ
AmericasArrow 442
Avnet 527
EuropeAvnet-SILICA 15
EBV Elektronik 17
TI Lead Time*: 8 WeeksUC1525AJ883B
AmericasArrow 151
TI Lead Time*: 8 WeeksUC1525AL
EuropeSpoerle 26
TI Lead Time*: 8 WeeksUC1525AL883B
AmericasRochester Electronics 103
EuropeEBV Elektronik 8
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
5962-89511012A  TBD POST-PLATE N/A for Pkg TypeViewView
5962-89511032A  TBD POST-PLATE N/A for Pkg TypeViewView
5962-8951103EA  TBD A42  N/A for Pkg TypeViewView
UC1525AJ  TBD A42  N/A for Pkg TypeViewView
UC1525AJ883B  TBD A42  N/A for Pkg TypeViewView
UC1525AL  TBD POST-PLATE N/A for Pkg TypeViewView
UC1525AL883B  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.

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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
UC2525A Regulating Pulse Width Modulators AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC1524A 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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