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TPS65146 Status: ACTIVE

Compact LCD Bias IC for Notebook & Monitor with LDO, VCOM Buffer and Reset IC

      
         
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Datasheet

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Functional Block Diagram


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 TPS65146
Vin(Min)(V)2.5  
Vin(Max)(V)6  
LDO1  
DC/DC Converter2  
Charge Pump1  
Pin/Package24VQFN  
Operating Temp Range(Celsius)-40 to 85  
Switching Frequency(Max)(kHz)1200  
Vout(Min)(V)7  
Vout(Max)(V)16.5  
Regulated Outputs(#)3  
RatingCatalog  
FunctionBoost  
TopologyBoost, Inverting Buck/Boost Bias  
Iout(Max)(A)2  
Iq(Typ)(mA)4.5  
Priority(Used for PQS)3  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

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  • TPS54231: 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™

    • Product Information

    Features

    • 2.5V to 6.0V Input Voltage Range
    • 16.5V Boost Converter With 2A Switch Current
    • 650kHz/1.2MHz Selectable Switching Frequency
    • Adjustable Soft-Start for the Boost Converter
    • 500mA LDO
    • Reset Function (XAO Signal)
    • Regulated VGH
    • Gate Voltage Shaping
    • VCOM Buffer
    • LCD Discharge Function
    • Overvoltage Protection
    • Thermal Shutdown
    • Undervoltage Lockout
    • 24-Pin 4×4mm QFN Package
    • APPLICATIONS
      • Notebook PC
      • Monitor

    Description

    The TPS65146 offers a very compact power supply solution designed to supply the LCD bias voltages required by TFT (Thin Film Transistor) LCD panels running from a typical 3.3 V or 5 V supply rail. The device integrates a step-up converter for VS (Source Driver voltage), a positive charge pump regulator for VGH (Gate Driver High voltage), a logic voltage rail using an integrated LDO and a Vcom buffer driving the LCD backplane. In addition to that, a gate voltage shaping block is integrated for VGH, modulating the signal (into VGHM) with high flexibility by using a logic input VFLK and an external discharge resistor connected to RE pin. Also, an external discrete negative charge pump can be set using the boost converter of the TPS65146 to generate VGL (Gate Driver Low voltage). The integrated reset function together with the LCD discharge function available in the TPS65146 provide the signals enabling the discharge of the LCD TFT pixels when powering-off. The device includes safety features like overvoltage protection (OVP), as well as thermal shutdown.

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
    TPS65146RGERACTIVE-40 to 851.80 | 1kuVQFN (RGE) | 24 View 3000 | LARGE T&R

    * 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

      TI Inventory Status Reported Distributor Inventory
    TPS65146RGERAs of 8:32 AM GMT, 03 Jul 2009As of 8:32 AM GMT, 03 Jul 2009
     Lead TimeRegionCompanyIn StockPurchase
     16 Weeks AmericasDigiKey >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
    TPS65146RGER RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

    * 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 TPS65146 Help

    Datasheet

    Application Notes

    Customers Who Evaluated This Product Also Evaluated...
    Part # Name Product Family Comments
    TLV1117-18 Single Output LDO, 800mA, Fixed(1.8V), Internal Current limit, Thermal Overload Protection LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
    BQ24085 750mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC with Thermal Regulation BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
    TPS54231 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™ DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
    TPS54331 3A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-mode ™ DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
    TPS62260 2.25MHz 600mA Step-Down Converter in 2x2mm SON/TSOT23 Package DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
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