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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

  • TPS65150: 5V/2A(I/O), 4-CH Multi-Converter w/ VCOM Op-Amp & GPM for LCD Bias, 24 QFN/TSSOP
  • TPS65148: Compact TFT LCD Bias IC with Boost Converter, VCOM Buffer and Voltage Regulator
  • TPS65166: Compact LCD Bias Supply for TFT-LCD TV
  • TPS62290: 2.25MHz 1A Step-Down Converter in 2x2mm SON Package
  • BQ24070: Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 4.4V
  • TPS3809K33: 3-Pin Supply Voltage Supervisor

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).

View All Description in Datasheet

    

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

Reported Distributor Inventory as of 10:07 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS65146RGER
AsiaWPI >1k
WorldwideDigiKey 923
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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
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
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.
TPS65148 Compact TFT LCD Bias IC with Boost Converter, VCOM Buffer and Voltage Regulator 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.
TPS62290 2.25MHz 1A Step-Down Converter in 2x2mm SON Package DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
BQ24070 Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 4.4V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
TPS3809K33 3-Pin Supply Voltage Supervisor POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS) TI customers also evaluated this product.
TPS61092 5-V Output, 500-mA, 96% Efficient Boost Converter, 20uA, QFN-16 DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS TI customers also evaluated this product.
TPS74801 Single Output LDO, 1.5A, Adj. (0.8 to 3.6V), Programmable Soft-Start LINEAR REGULATORS-SINGLE CHANNEL LDO 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.
TPS23754 High Power/High Efficiency PoE Interface and DC/DC Controller POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES TI customers also evaluated this product.
TPS51116 DDR1, DDR2, DDR3 Switcher and LDO NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
UC3846 Current Mode PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
BQ24086 750mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC with Thermal Regulation BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.

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