TI Home > Semiconductors > Power Management > Lighting and Display Solutions > White LED Drivers >

TPS61045 Status: ACTIVE

28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable


      
         
Alert me about changes<br/>to this product


Datasheet

Download - PDF Icon

 TPS61040 TPS61041 TPS61042 TPS61043 TPS61045
TopologyBoost  Boost  Boost  Boost  Boost  
TypeInductive  Inductive  Inductive  Inductive  Inductive  
Vin(Min)(V)1.8  1.8  1.8  1.8  1.8  
Vin(Max)(V)6  6  6  6  6  
Switch Current Limit(Typ)(A)0.4  0.25  0.5  0.5  0.45  
Output Voltage(Max)(V)28  28  28  16.9  28  
Switching Frequency(Max)(kHz)1000  1000  1000  1000  1000  
LED(#)6  4  6  4  1 OLED or 6  
LED ConfigurationSeries  Series  Series  Series  Series  
Over-Voltage Protection(Min)(V)  28  17   
Peak Efficiency(%)86  85  85  85   
Iq(Typ)(mA)0.028  0.028  0.038  0.038  0.04  
Operating Temp Range(Celsius)-40 to 85  -40 to 85  -40 to 85  -40 to 85  -40 to 85  
Pin/Package5SOT-23, 6SON  5SOT-23, 6SON  8SON  8SON  8SON  
Iout(Max)(A)0.09  0.05  0.03  0.03  0.02  
Regulated Outputs(#)1  1  1  1  1  
 SamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS61041: 28-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications
  • TPS61040: 28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications
  • TPS61042: 30-V, 500-mA Switch Boost Converter in QFN-8 for White LED Applications
  • BQ24745: SMBus-Controlled Level 2 Multi-Chemistry Battery Charger With Input Current Detect Comparator
  • TPS61086: 18.5V PFM/PWM Step-Up DC-DC Converter with 2.0 A Switch
  • TPS61093: Low Input, 20V/1.1A Step-Up DC/DC Converter with Integrated Power Diode and Input/Output Isolation

More Related Products

Product Information

Features

  • Input Voltage Range . . .1.8 V to 6 V
  • Output voltage of up to 28V possible
  • Up to 85% Efficiency
  • Digitally Adjustable Output Voltage Control
  • Disconnects Output From Input During Shutdown
  • Switching Frequency . . . Up to 1 MHz
  • No Load Quiescent Current . . . 40 µA Typ
  • Thermal Shutdown Mode
  • Shutdown Current . . . 0.1 µA Typ
  • Available in Small 3mm × 3mm QFN package
  • APPLICATIONS
    • LCD Bias Supply For Small to Medium LCD Displays
    • OLED Display Power Supply
      • PDA, Pocket PC, Smart Phones
      • Handheld Devices
      • Cellular Phones

Description

The TPS61045 is a high frequency boost converter with digitally programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This allows a controlled power up/down sequencing of the display. The output voltage can be increased or decreased in digital steps by applying a logic signal to the CTRL pin. The output voltage range, as well as the output voltage step size, can be programmed with the feedback divider network. With a high switching frequency of up to 1 MHz, the TPS61045 allows the use of small external components and together, with the small 8-pin QFN package, a minimum system solution size is achieved.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS61045DRBRACTIVE-40 to 850.90 | 1kuSON (DRB) | 8 View 3000 | LARGE T&R Download CAD Format for this Symbol
TPS61045DRBRG4ACTIVE-40 to 850.90 | 1kuSON (DRB) | 8 View 3000 | LARGE T&R Download CAD Format for this Symbol
TPS61045DRBTACTIVE-40 to 851.00 | 1kuSON (DRB) | 8 View 250 | SMALL T&R Download CAD Format for this SymbolPurchase Samples
TPS61045DRBTG4ACTIVE-40 to 851.00 | 1kuSON (DRB) | 8 View 250 | SMALL T&R Download CAD Format for this SymbolPurchase Samples

* 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 10:10 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS61045DRBR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS61045DRBRG4
AmericasRochester Electronics >1k
TI Lead Time*: 20 WeeksTPS61045DRBT
EuropeArrow Southern Europe 1k
Avnet-SILICA 15
TI Lead Time*: 20 WeeksTPS61045DRBTG4
AsiaFarnell Asia 2
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
TPS61045DRBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS61045DRBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS61045DRBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS61045DRBTG4 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 TPS61045 Help

Datasheet

Application Notes

View Application Notes for White LED Drivers

User Guides

Reference Designs

Description Part # Company
Power Over Ethernet - Sync Flyback Reference Design PMP411 Texas Instruments

Tools & Software

NamePart # Company Tool / Software Type
TPS61045 Evaluation ModuleTPS61045EVM-231Texas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS61041 28-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS61040 28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS61042 30-V, 500-mA Switch Boost Converter in QFN-8 for White LED Applications LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS61043 TPS61043: Constant Current LED Driver LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS61081 27V, 1.2A switch, 1.2MHz Boost Converter with integrated power diode LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS61160 White LED Driver with Digital and PWM Brightness Control in 2mm x 2mm Package LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS61181 1.5A White LED Driver for Notebooks LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
BQ24745 SMBus-Controlled Level 2 Multi-Chemistry Battery Charger With Input Current Detect Comparator BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT 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.
TPS61093 Low Input, 20V/1.1A Step-Up DC/DC Converter with Integrated Power Diode and Input/Output Isolation DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS TI customers also evaluated this product.
TPS51200 Sink/Source DDR Termination Regulator LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS73001 Single Output LDO, 200mA, Adj.(1.5 to 5.5V), High PSRR, Low Noise LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
BQ24030 Dual Input Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 6V, Vbat 4.2V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
TPS73033 Single Output LDO, 200mA, Fixed(3.3V), High PSRR, Low Noise LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
UCC25600 8-Pin High-Performance Resonant Mode Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
BQ24075 USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 5.5V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
UCC28061 Natural Interleaving(TM) Transition-Mode PFC Controller with Improved Audible Noise Immunity AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS TI customers also evaluated this product.

All End-Equipment

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here