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TPS60251 Status: ACTIVE

High Efficiency Charge Pump for 7 WLEDs with I2C Interface


      
         
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 TPS60250 TPS60251TPS60252 TPS60255 
TopologyBoost  Boost  Boost  Boost  
TypeCapacitive  Capacitive  Capacitive  Capacitive  
Vin(Min)(V)3  3  3  2.7  
Vin(Max)(V)6  6  6  6  
Output Voltage(Max)(V)6.5  6.5  6.5  6.6  
Switching Frequency(Max)(kHz)750  750  750  750  
LED(#)4+2+1  4+2+1  4+2+1  4+2+1  
LED ConfigurationParallel  Parallel  Parallel  Parallel  
Peak Efficiency(%)93  93  93  93  
Iq(Typ)(mA)0.068  0.068  0.068  0.068  
Operating Temp Range(Celsius)-40 to 85  -40 to 85  -40 to 85  -40 to 85  
Pin/Package16QFN  24QFN  16QFN  16QFN  
Iout(Max)(A)0.23  0.23  0.23  0.23  
I2C Address1110111  1110111  1110110  EasyScale(TM)  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS60250: High Efficiency Charge Pump for 7 WLEDs with I2C Interface
  • TPS60255: 7-Channel, High Efficiency 175-mA Charge Pump for White LED Backlight
  • TPS60252: High Efficiency Charge Pump for 7 WLEDs with I2C Interface

Product Information

Features

  • 3.0-V to 6.0-V Input Voltage Range
  • ×1 and ×1.5 Charge Pump
  • Fully Programmable Current with I2C
    • 64 Dimming Steps with 25mA Maximum (Sub and Main Display Banks)
    • 4 Dimming Steps with 80mA Maximum (DM5 for Auxiliary Application)
  • 2% Current Matching for Sub LEDs at Light Load Condition (Each 100µA)
  • 750-kHz Charge Pump Frequency
  • Continuous 230-mA Maximum Output Current
  • Auto Switching Between ×1 and ×1.5 Mode for Maximum Efficiency
  • Built-in Soft Start and Current Limit
  • Hardware Enable/Disable
  • Open Lamp Detection
  • 24-Pin 4mm x 4mm QFN
  • APPLICATIONS
    • Cellular Phones
    • PDA, PMP, GPS (Up To 4 Inch Display)
    • Multidisplay Handheld Devices

Description

The TPS60251 is a high efficiency, constant frequency charge pump DC/DC converter that uses a dual mode 1× and 1.5× conversion to maximize efficiency over the input voltage range. It drives up to five white LEDs for a main display and up to two white LEDs for a sub display with regulated constant current for uniform intensity. By utilizing adaptive 1×/1.5× charge pump modes and very low-dropout current regulators, the TPS60251 achieves high efficiency over the full 1-cell lithium-battery input voltage range.

Four enable inputs, ENmain, ENsub1, ENsub2, and ENaux, available through I2C, are used for simple on/off controls for the main, sub1, sub2, and DM5 displays, respectively. To lower operating current when using one sub display LED, the device provides independent operation in sub display LEDs.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSymbolsSamples
TPS60251RTWRACTIVE-40 to 851.40 | 1kuQFN (RTW) | 24 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS60251RTWRG4ACTIVE-40 to 851.40 | 1kuQFN (RTW) | 24 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS60251RTWTACTIVE-40 to 851.55 | 1kuQFN (RTW) | 24 250 | SMALL T&R Download CAD Format for this Symbol
TPS60251RTWTG4ACTIVE-40 to 851.55 | 1kuQFN (RTW) | 24 250 | SMALL T&R Download CAD Format for this Symbol

* 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 10:11 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 16 WeeksTPS60251RTWR
AmericasRochester Electronics >1k
WorldwideDigiKey  Available
TI Lead Time*: 16 WeeksTPS60251RTWRG4
WorldwideDigiKey  Available
TI Lead Time*: 16 WeeksTPS60251RTWT
AmericasRochester Electronics 500
AsiaFarnell Asia 500
EuropeFarnell 500
WorldwideDigiKey >1k
Mouser Electronics 238
TI Lead Time*: 16 WeeksTPS60251RTWTG4
WorldwideDigiKey  Available
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
TPS60251RTWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 
TPS60251RTWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 
TPS60251RTWT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 
TPS60251RTWTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 

* 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 TPS60251 Help

Datasheet

Application Notes

View Application Notes for White LED Drivers

User Guides

Tools & Software

NamePart # Company Tool / Software Type
TPS60251 Evaluation ModuleTPS60251EVM-192Texas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS60250 High Efficiency Charge Pump for 7 WLEDs with I2C Interface LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS60255 7-Channel, High Efficiency 175-mA Charge Pump for White LED Backlight LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS60252 High Efficiency Charge Pump for 7 WLEDs with I2C Interface LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.

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