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BQ24071 Status: ACTIVE

Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 6V

      
         
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Datasheet

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 BQ24070 BQ24071
# Series Cells1  1  
Charge Current(Max)(A)1.5  1.5  
Charge Status Outputs2  2  
Control TopologyLinear  Linear  
Primary Charge Termination MethodMinimum Current  Minimum Current  
Pin/Package20QFN  20QFN  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24070: Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 4.4V
  • BQ24072: USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 200mV above Vbat
  • BQ24075: USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 5.5V
  • TPS79325: Single Output LDO, 200mA, Fixed(2.5V), High PSRR, Low Noise
  • TPS62110: Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16
  • TPS79918: Single Output LDO, 200mA, Fixed(1.8V), Low Quiescent Current, Low Noise, High PSRR

Product Information

Features

  • Small 3,5 mm × 4,5 mm QFN Package
  • Designed for Single-Cell Li-Ion- or Li-Polymer-Based Portable Applications
  • Integrated Dynamic Power-Path Management (DPPM) Feature Allowing the AC Adapter to Simultaneously Power the System and Charge the Battery
  • Power Supplement Mode Allows Battery to Supplement the AC Input Current
  • Autonomous Power Source Selection (AC Adapter or BAT)
  • Supports Up to 2 Amps Total Current
  • Thermal Regulation for Charge Control
  • Charge Status Outputs for LED or System Interface Indicates Charge and Fault Conditions
  • Reverse Current, Short-Circuit, and Thermal Protection
  • Power Good Status Outputs
  • 4.4-V and 6-V Options for System Output Regulation Voltage
  • APPLICATIONS
    • Smart Phones and PDA
    • MP3 Players
    • Digital Cameras and Handheld Devices
    • Internet Appliances

Description

The bq24070 and bq24071 are highly integrated Li-ion linear charger and system power-path management devices targeted at space-limited portable applications. The bq24070/1 offer DC supply (AC adapter) power-path management with autonomous power-source selection, power FETs and current sensors, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device.

The bq24070/1 power the system while independently charging the battery. This feature reduces the charge and discharge cycles on the battery, allows for proper charge termination and allows the system to run with an absent or defective battery pack. This feature also allows for the system to instantaneously turn on from an external power source in the case of a deeply discharged battery pack. The IC design is focused on supplying continuous power to the system when available from the AC adapter or battery sources.

The MODE pin selects the priority of the input sources. If an input source is not available, then the battery is selected as the source. With the MODE pin high, the bq24070/1 attempts to charge from the input at the charge rate set by ISET1 pin. With the MODE pin low, the bq24070/1 defaults to USB charging at the charge rate. This feature allows the use of a single connector (mini-USB cable), where the host programs the MODE pin according to the source that is connected (AC adaptor or USB port). summarizes the MODE pin function.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
BQ24071RHLRACTIVE-40 to 851.60 | 1kuQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
BQ24071RHLRG4ACTIVE-40 to 851.60 | 1kuQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
BQ24071RHLTACTIVE-40 to 851.80 | 1kuQFN (RHL) | 20 View 250 | SMALL T&R Download CAD Format for this Symbol
BQ24071RHLTG4ACTIVE-40 to 851.80 | 1kuQFN (RHL) | 20 View 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

  TI Inventory Status Reported Distributor Inventory
BQ24071RHLRAs of 12:03 PM GMT, 03 Jul 2009As of 12:03 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
BQ24071RHLRG4As of 12:03 PM GMT, 03 Jul 2009As of 12:03 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
BQ24071RHLTAs of 12:03 PM GMT, 03 Jul 2009As of 12:03 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey 99
 Mouser Electronics 172
 Newark 245
 Rochester Electronics 250
 AsiaWPI 88
BQ24071RHLTG4As of 12:03 PM GMT, 03 Jul 2009As of 12:03 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 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
BQ24071RHLR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24071RHLRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24071RHLT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24071RHLTG4 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 BQ24071 Help

Datasheet

User Guides

View User Guides for Battery Charge Management

Tools & Software

NamePart # Company Tool / Software Type
1.5-A Single-Chip Li-Ion and Li-Pol ChargerBQ24071EVMTexas InstrumentsDevelopment Boards/EVMs
Quick Search Selection Tool for Battery ChargersBATTERY_CHARGERS_SELECTION_TOOLTexas InstrumentsFree Evaluation Tools

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
BQ24070 Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 4.4V   TI customers also evaluated this product.
BQ24072 USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 200mV above Vbat   TI customers also evaluated this product.
BQ24075 USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 5.5V   TI customers also evaluated this product.
TPS79325 Single Output LDO, 200mA, Fixed(2.5V), High PSRR, Low Noise LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS62110 Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16 DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS79918 Single Output LDO, 200mA, Fixed(1.8V), Low Quiescent Current, Low Noise, High PSRR LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS62203 3.3-V Output, 300-mA, 95% Efficient Step-Down Converter in SOT-23 DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS61020 Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10 DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS TI customers also evaluated this product.
TPS2066 Dual 1A Current-Limited, Power-Distribution Switches PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS3825-33 Processor Supervisory Circuits POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS) TI customers also evaluated this product.
TPS40055 Wide Input (8V-40V) up to 1MHz Frequency Synchronous Buck Controller, source/sink NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
LM317 3/4 Pin 1.5A Adjustable Positive Voltage Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
TPS62510 Adjustable, 97% Efficiency, 1.5A Buck Converter for low input voltages DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.

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