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TPS75105 Status: ACTIVE

Low Dropout, Two-Bank LED Driver with PWM Brightness Control


      
         
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 TPS75103 TPS75105
TopologyLDO  LDO  
TypeLinear  Linear  
Vin(Min)(V)2.7  2.7  
Vin(Max)(V)5.5  5.5  
Output Voltage(Max)(V)3.6  3.6  
LED(#)2 x 2  2 x 2  
LED ConfigurationParallel  Parallel  
Peak Efficiency(%)87  87  
Iq(Typ)(mA)0.18  0.18  
Operating Temp Range(Celsius) -40 to 85  
Pin/Package9DSBGA  10SON, 9DSBGA  
Iout(Max)(A)0.025  0.025  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS75103: Low Dropout, Two-Bank LED Driver with PWM Brightness Control
  • UC3843A: Current Mode PWM Controller
  • UCC28061: Natural Interleaving(TM) Transition-Mode PFC Controller with Improved Audible Noise Immunity
  • TPS54160: 3.5V to 60V, 1.5A Step Down SWIFT™ Converter with Eco-Mode™

Product Information

Features

  • Regulated Output Current with 2% LED-to-LED Matching
  • Drives Up to Four LEDs at 25mA Each in a Common Cathode Topology
  • 28mV Typical Dropout Voltage Extends Usable Supply Range in Li-Ion Battery Applications
  • Brightness Control Using PWM Signals
  • Two 2-LED Banks with Independent Enable and PWM Brightness Control per Bank
  • No Internal Switching Signals—Eliminates EMI
  • Default LED Current Eliminates External Components
    • Default values from 3mA to 10mA (in 1mA increments) available using innovative factory EEPROM programming
    • Optional external resistor can be used for high-accuracy, user-programmable current
  • Over-Current and Over-Temperature Protection
  • Available in Wafer Chip-Scale Package or 2,5mm × 2,5mm SON-10
  • APPLICATIONS
    • Keypad and Display Backlighting
    • White and Color LEDs
    • Cellular Handsets
    • PDAs and Smartphones

Description

The TPS7510x linear low dropout (LDO) matching LED current source is optimized for low power keypad and navigation pad LED backlighting applications. The device provides a constant current to up to four unmatched LEDs organized in two banks of two LEDs each in a common-cathode topology. Without an external resistor, the current source defaults to factory-programmable, preset current level with ±0.5% accuracy (typical). An optional external resistor can be used to set initial brightness to user-programmable values with higher accuracy. Brightness can be varied from off to full brightness by inputting a pulse width modulation (PWM) signal on each Enable pin. Each bank has independent enable and brightness control, but current matching is done to all four channels concurrently.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSymbolsFootprintsSamples
TPS75105DSKRACTIVE-40 to 850.65 | 1kuSON (DSK) | 10 3000 | LARGE T&R  Purchase Samples
TPS75105DSKTACTIVE-40 to 850.70 | 1kuSON (DSK) | 10 250 | SMALL T&R  Purchase Samples
TPS75105YFFRACTIVE-40 to 850.65 | 1kuDSBGA (YFF) | 9 3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
TPS75105YFFTACTIVE-40 to 850.70 | 1kuDSBGA (YFF) | 9 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase 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 9:42 AM GMT, 09 Feb 2010
RegionCompanyIn StockPurchase
TI Lead Time*: 10 WeeksTPS75105DSKR
None Reported
View Distributors
TI Lead Time*: 10 WeeksTPS75105DSKT
None Reported
View Distributors
TI Lead Time*: 14 WeeksTPS75105YFFR
None Reported
View Distributors
TI Lead Time*: 10 WeeksTPS75105YFFT
AmericasNewark 500
AsiaFarnell Asia 500
WPI 160
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
TPS75105DSKR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS75105DSKT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS75105YFFR RoHS Compliant Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIMViewView
TPS75105YFFT RoHS Compliant Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIMViewView

* 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 TPS75105 Help

Datasheet

Application Notes

View Application Notes for White LED Drivers

User Guides

Tools & Software

NamePart # Company Tool / Software Type
TPS75105DSKEVM-529 Evaluation ModuleTPS75105DSKEVM-529Texas InstrumentsDevelopment Boards/EVMs
TPS75105EVM-174 Evaluation ModuleTPS75105EVM-174Texas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS75103 Low Dropout, Two-Bank LED Driver with PWM Brightness Control LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
UC3843A Current Mode PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS 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.
TPS54160 3.5V to 60V, 1.5A Step Down SWIFT™ Converter with Eco-Mode™ DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS54620 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
BQ24103 Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1- or 2-cell BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
TPS51315 3V to 14V, 10A Synchronous Step Down Converter with D-CAP™ Mode DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
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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.
TPS2065 Single 1A Current-Limited, Power-Distribution Switches for USB Applications PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS40192 4.5V to 18V Input, Low Pin Count, Synchronous Buck Controller with Power Good NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.

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