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UC1525B-SP Status: ACTIVE

Regulating Pulse Width Modulators


      
         
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Datasheet

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 UC1525B-SP
TopologyBoost,Flyback,Forward,Full-Bridge,Half-Bridge,Push-Pull  
Control MethodVoltage Mode  
Duty Cycle(Max)(%)50  
PWM Outputs(#)2  
Frequency(Max)(kHz)400  
UVLO Thresholds On/Off(V)7/6.8  
Pin/Package16CDIP, 20LCCC  
Regulated Outputs(#)2  
 Samples
 Inventory

Other qualified versions of UC1525B-SP

Version Part Number Definition
Catalog UC1525B TI's standard catalog product

Customers Who Evaluated This Product Also Evaluated

  • UCC28610: 12-65W Green-mode Flyback Power Supply Controller
  • UC1846-SP: Current-Mode PWM Controller
  • UC1825-SP: High Speed PWM Controller

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Product Information

Features

  • QML-V Qualified, SMD 5962-89511
  • Rad-Tolerant: 30 kRad (Si) TID(1)
  • 8-V to 35-V Operation
  • 5.1-V Buried Zener Reference Trimmed to ±0.75%
  • 100-Hz to 400-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
  • Low Cross Conduction Output Stage
  • Tighter Reference Specifications

(1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

Description

The UC1525B pulse width modulator integrated circuit is 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 buried zener reference is trimmed to ±0.75%, 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 provide 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 | PinsPackage QTY | Package CarrierSymbolsFootprintsSamples
5962-8951105V2AACTIVE-55 to 125196.01 | 100uLCCC (FK) | 20 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
5962-8951105VEAACTIVE-55 to 125174.49 | 100uCDIP (J) | 16 1 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
5962-8951106V2AACTIVE-55 to 125235.22 | 100uLCCC (FK) | 20 1 | TUBE  Contact 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*: 26 Weeks5962-8951105V2A
None Reported
View Distributors
TI Lead Time*: 26 Weeks5962-8951105VEA
None Reported
View Distributors
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
5962-8951105V2A  TBD POST-PLATE N/A for Pkg TypeViewView
5962-8951105VEA  TBD A42  N/A for Pkg TypeViewView
5962-8951106V2A  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

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Datasheet

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
UCC28610 12-65W Green-mode Flyback Power Supply Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC1846-SP Current-Mode PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC1825-SP High Speed PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
UC1825A-SP 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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TL3845B High-Performance Current-Mode PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.

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