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TPS65148 Status: ACTIVE

Compact TFT LCD Bias IC with Boost Converter, VCOM Buffer and Voltage Regulator


      
         
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Datasheet

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Functional Block Diagram


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 TPS65148
Vin(Min)(V)2.5  
Vin(Max)(V)6  
LDO1  
DC/DC Converter1  
Pin/Package32QFN  
Operating Temp Range(Celsius)-40 to 85  
Switching Frequency(Max)(kHz)1200  
Vout(Min)(V)7  
Vout(Max)(V)18  
Regulated Outputs(#)2  
RatingCatalog  
FunctionBoost  
TopologyBoost  
Iq(Typ)(mA)2  
Priority(Used for PQS)3  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • TPS65100: Triple Output TFT LCD Supply w/VCOM Buffer
  • TPS65166: Compact LCD Bias Supply for TFT-LCD TV
  • TPS65146: Compact LCD Bias IC for Notebook & Monitor with LDO, VCOM Buffer and Reset IC
  • TPS61086: 18.5V PFM/PWM Step-Up DC-DC Converter with 2.0 A Switch
  • TPS63700: Adjustable, -15V Output Inverting DC/DC Converter in 3x3 QFN

More Related Products

Product Information

Features

  • 2.5V to 6.0V Input Voltage Range
  • Up to 18V Boost Converter With 4A Switch Current
  • 630kHz/1.2MHz Selectable Switching Frequency
  • Adjustable Soft-Start for the Boost Converter
  • Gate Driver for External Input-to-Output Isolation Switch
  • 0.5% Accuracy Voltage Regulator for Gamma Buffer
  • Gate Voltage Shaping
  • VCOM Buffer
  • Reset Function (XAO Signal)
  • LCD Discharge Function
  • Overvoltage Protection
  • Overcurrent Protection
  • Thermal Shutdown
  • 32-Pin 5*5mm QFN Package
  • APPLICATIONS
    • Monitor
    • TV (5V Input Voltage)

Description

The TPS65148 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 5 V supply rail. The device integrates a high power step-up converter for VS (Source Driver voltage), a very accurate voltage rail using an integrated LDO to supply the Gamma Buffer (VREG_O) and a Vcom buffer driving the LCD backplane. In addition to that, a gate voltage shaping block is integrated. The VGH signal (Gate Driver High voltage) supplied by an external positive charge pump, is modulated into VGHM with high flexibility by using a logic input VFLK and an external discharge resistor connected to RE pin. Also, an external negative charge pump can be set using the boost converter of the TPS65148 to generate VGL (Gate Driver Low voltage).

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Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
TPS65148RHBRACTIVE-40 to 852.10 | 1kuQFN (RHB) | 32 View 3000 | LARGE T&R
TPS65148RHBTACTIVE-40 to 852.35 | 1kuQFN (RHB) | 32 View 250 | SMALL 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

Reported Distributor Inventory as of 10:07 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS65148RHBR
WorldwideDigiKey >1k
TI Lead Time*: 16 WeeksTPS65148RHBT
WorldwideDigiKey 250
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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
TPS65148RHBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS65148RHBT 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 TPS65148 Help

Datasheet

Application Notes

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS65100 Triple Output TFT LCD Supply w/VCOM Buffer LIGHTING AND DISPLAY SOLUTIONS-LCD/OLED DISPLAY BIAS SOLUTIONS TI customers also evaluated this product.
TPS65166 Compact LCD Bias Supply for TFT-LCD TV LIGHTING AND DISPLAY SOLUTIONS-LCD/OLED DISPLAY BIAS SOLUTIONS TI customers also evaluated this product.
TPS65146 Compact LCD Bias IC for Notebook & Monitor with LDO, VCOM Buffer and Reset IC LIGHTING AND DISPLAY SOLUTIONS-LCD/OLED DISPLAY BIAS SOLUTIONS TI customers also evaluated this product.
TPS65192 9-Channel Level Shifter for LCD Displays LIGHTING AND DISPLAY SOLUTIONS-LCD/OLED DISPLAY BIAS SOLUTIONS TI customers also evaluated this product.
TPS65150 5V/2A(I/O), 4-CH Multi-Converter w/ VCOM Op-Amp & GPM for LCD Bias, 24 QFN/TSSOP LIGHTING AND DISPLAY SOLUTIONS-LCD/OLED DISPLAY BIAS SOLUTIONS TI customers also evaluated this product.
TPS65190 10-Channel Level Shifter for LCD Displays LIGHTING AND DISPLAY SOLUTIONS-LCD/OLED DISPLAY BIAS SOLUTIONS TI customers also evaluated this product.
TPS61086 18.5V PFM/PWM Step-Up DC-DC Converter with 2.0 A Switch DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS TI customers also evaluated this product.
TPS63700 Adjustable, -15V Output Inverting DC/DC Converter in 3x3 QFN DC/DC CONVERTERS (INTEGRATED SWITCH)-INVERTING REGULATORS TI customers also evaluated this product.

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