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UC2842AQ Status: ACTIVE

Automotive Catalog Current-Mode PWM Controller


      
         
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 UC2842AQ
TopologyBoost  
Control MethodCurrent Mode  
Duty Cycle(Max)(%)100  
PWM Outputs(#)1  
Frequency(Max)(kHz)500  
UVLO Thresholds On/Off(V)16/10  
Pin/Package14SOIC, 8SOIC  
Regulated Outputs(#)1  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • TPS40210: Wide Input Range Current Mode Boost Controller

    • Product Information

    Features

    • Extended Temperature Performance of –40°C to 125°C
    • Optimized for Off-line and DC to DC Converters
    • Low Start Up Current (<0.5 mA)
    • Trimmed Oscillator Discharge Current
    • Automatic Feed Forward Compensation
    • Pulse-by-Pulse Current Limiting
    • Enhanced Load Response Characteristics
    • Under-Voltage Lockout With Hysteresis
    • Double Pulse Suppression
    • High Current Totem Pole Output
    • Internally Trimmed Bandgap Reference
    • 500 kHz Operation
    • Low RO Error Amp

    Description

    The UC2842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC2842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features. Start up current is guaranteed to be less than 0.5 mA. Oscillator discharge is trimmed to 8.3 mA. During under voltage lockout, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.

    The difference between members of this family are shown in the table below.

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingCAD Design ToolsSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
    UC2842AQDACTIVE-40 to 1250.98 | 1kuSOIC (D) | 14 View 50 Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    UC2842AQD8ACTIVE-40 to 1250.98 | 1kuSOIC (D) | 8 View 75 Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    UC2842AQD8RACTIVE-40 to 1250.90 | 1kuSOIC (D) | 8 View 2500 Download CAD Format for this Symbol Download CAD Format for this Footprint
    UC2842AQDRACTIVE-40 to 1250.98 | 1kuSOIC (D) | 14 View 2500 Download CAD Format for this Symbol Download CAD Format for this Footprint

    * 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, 26 Nov 2009
    RegionCompanyIn StockPurchase
    TI Lead Time*: 10 WeeksUC2842AQD
    WorldwideDigiKey  Available
    TI Lead Time*: 6 WeeksUC2842AQD8
    AmericasAvnet 602
    WorldwideDigiKey  Available
    TI Lead Time*: 11 WeeksUC2842AQD8R
    WorldwideDigiKey 435
    TI Lead Time*: 10 WeeksUC2842AQDR
    WorldwideDigiKey >1k
    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
    UC2842AQD RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    UC2842AQD8 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    UC2842AQD8R RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    UC2842AQDR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

    * 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 UC2842AQ Help

    Datasheet

    Customers Who Evaluated This Product Also Evaluated...
    Part # Name Product Family Comments
    TPS40210 Wide Input Range Current Mode Boost Controller NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.

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