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BQ24070 Status: ACTIVE

Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 4.4V


      
         
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 BQ24070BQ24071 
# 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

  • BQ24032A: Dual Input Li-Ion Charger with Dynamic Power Path, Output regulated to 4.4V, Vbat 4.2V
  • BQ24100: Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell
  • BQ24072: USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 200mV above Vbat
  • TPS51116: DDR1, DDR2, DDR3 Switcher and LDO
  • TPS61032: 5-V Output, 1-A, 96% Efficient Boost Converter w/20uA Iq in TSSOP-16
  • TPS5450: 5.5V to 36V, 5A, 500kHz Step Down SWIFT™ Converter

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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).

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
BQ24070RHLRACTIVE-40 to 851.60 | 1kuQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24070RHLRG4ACTIVE-40 to 851.60 | 1kuQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24070RHLTACTIVE-40 to 851.80 | 1kuQFN (RHL) | 20 View 250 | SMALL T&R Download CAD Format for this SymbolPurchase Samples
BQ24070RHLTG4ACTIVE-40 to 851.80 | 1kuQFN (RHL) | 20 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 12:06 PM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ24070RHLR
WorldwideMouser Electronics >1k
TI Lead Time*: 20 WeeksBQ24070RHLRG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksBQ24070RHLT
AmericasArrow 250
Newark 277
AsiaFarnell Asia 277
WPI 19
TI Lead Time*: 20 WeeksBQ24070RHLTG4
AsiaFarnell Asia 70
EuropeFarnell 1
WorldwideMouser Electronics 202
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
BQ24070RHLR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24070RHLRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24070RHLT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24070RHLTG4 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 BQ24070 Help

Datasheet

Application Notes

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User Guides

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Tools & Software

NamePart # Company Tool / Software Type
bq24070 Evaluation ModuleBQ24070EVMTexas InstrumentsDevelopment Boards/EVMs
Quick Search Selection Tool for Battery ChargersBATTERY_CHARGERS_SELECTION_TOOLTexas InstrumentsFree Evaluation Tools

Customers Who Evaluated This Product Also Evaluated...
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BQ24100 Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24072 USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 200mV above Vbat BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2057C Low Dropout Linear 1-cell Li-Ion Charge Controller with AutoCompTM, 4.2V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24020 bqTINY-II Dual Input USB/AC Adpater 1-Cell Li-Ion Charger w/Charge Enable & Temp Sense in QFN-10 BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT 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.
BQ24050 800mA, Single-Input, Single Cell Li-Ion Battery Charger with Automatic AC/USB Detection. Rntc=10k BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24086 750mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC with Thermal Regulation BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
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