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TPS60252 Status: ACTIVE

High Efficiency Charge Pump for 7 WLEDs with I2C Interface

      
         
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 TPS60250 TPS60251 TPS60252TPS60255 
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

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  • TPS60255: 7-Channel, High Efficiency 175-mA Charge Pump for White LED Backlight
  • TPS61060: 15V, 400mA Switch, 1MHz Boost Converter w/Brightness Control for White LED Power Supplies
  • UCC28C43: BiCMOS Low-Power Current Mode PWM Controller
  • TPS40210: Wide Input Range Current Mode Boost Controller
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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 230mA Maximum Output Current
  • Auto Switching Between ×1 and ×1.5 Mode for Maximum Efficiency
  • Built-in Soft Start and Current Limit
  • Open Lamp Detection
  • 16-Pin 3mm x 3mm QFN
  • TPS60250 (I2C Slave Address: 1110111)
  • TPS60252 (I2C Slave Address: 1110110)
  • APPLICATIONS
    • Cellular Phones
    • PDA, PMP, GPS (Up To 4 Inch LCD Display)
    • Multidisplay Handheld Devices

Description

The TPS60250/2 are high efficiency, constant frequency charge pump DC/DC converters that use dual mode 1× and 1.5× conversions to maximize efficiency over the input voltage range. The devices drive up to five white LEDs for the main display and up to two white LEDs for the 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 TPS60250/2 achieve high efficiency over the full 1-cell lithium-battery input voltage range.

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

The TPS60250/2 are available in a 16-pin 3mm x 3mm thin QFN.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
TPS60252RTERACTIVE-40 to 851.40 | 1kuQFN (RTE) | 16 3000 | LARGE T&RPurchase Samples
TPS60252RTERG4ACTIVE-40 to 851.40 | 1kuQFN (RTE) | 16 3000 | LARGE T&RPurchase Samples
TPS60252RTETACTIVE-40 to 851.55 | 1kuQFN (RTE) | 16 250 | SMALL T&R
TPS60252RTETG4ACTIVE-40 to 851.55 | 1kuQFN (RTE) | 16 250 | 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

  TI Inventory Status Reported Distributor Inventory
TPS60252RTERAs of 8:39 AM GMT, 03 Jul 2009As of 8:39 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 20 Weeks AmericasDigiKey  Available
TPS60252RTERG4As of 8:39 AM GMT, 03 Jul 2009As of 8:39 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 20 Weeks AmericasDigiKey  Available
TPS60252RTETAs of 8:39 AM GMT, 03 Jul 2009As of 8:39 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 20 Weeks AmericasDigiKey 55
 EuropeFarnell 250
TPS60252RTETG4As of 8:39 AM GMT, 03 Jul 2009As of 8:39 AM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 20 Weeks AmericasDigiKey  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
TPS60252RTER RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS60252RTERG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS60252RTET RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS60252RTETG4 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

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Datasheet

Application Notes

View Application Notes for White LED Drivers

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