TI Home > Semiconductors > Power Management > Battery Management > Battery Charge Management >

BQ24020 Status: ACTIVE

bqTINY-II Dual Input USB/AC Adpater 1-Cell Li-Ion Charger w/Charge Enable & Temp Sense in QFN-10


      
         
Alert me about changes<br/>to this product

 BQ24020BQ24022 BQ24023 BQ24024 BQ24025 BQ24026 BQ24027 
# Series Cells1  1  1  1  1  1  1  
Charge Current(Max)(A)1  1  1  1  1  1  1  
Charge Status Outputs2  2  2  2  2  2  2  
Control TopologyLinear  Linear  Linear  Linear  Linear  Linear  Linear  
Primary Charge Termination MethodMinimum Current  Minimum Current  Minimum Current  Minimum Current  Minimum Current  Minimum Current  Minimum Current  
Pin/Package10SON  10SON  10SON  10SON  10SON  10SON  10SON  
Vin(Max)(V)7  7  7  7  7  7   
Battery Charge Voltage(V)4.2  4.2  4.2  4.2  4.2  4.2   
Optional FunctionsCE and TS  PG and CE  CE and TTE  TTE and TS  CE and TS  TE and TS   
 SamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24072: USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 200mV above Vbat
  • BQ24100: Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell
  • BQ25010: 500mA Li-Ion Charger w/Integrated 150mA Synchronous Buck Converter, Output Adjustable
  • TPS54231: 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™
  • TLV431A: Low Voltage Adjustable Precision Shunt Regulator
  • TL431: Adjustable Precision Shunt Regulator

More Related Products

Product Information

Features

  • Small 3 mm × 3 mm MLP Package
  • Charges and powers Systems from Either AC Adapter or USB With Autonomous power-Source Selection
  • Integrated USB Control With Selectable 100 mA and 500 mA Charge Rates
  • Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-pol Packs in Space Limited portable applications
  • Integrated power FET and Current Sensor for Up to 1-A Charge applications From AC Adapter
  • Precharge Conditioning With Safety Timer
  • power Good (AC Adapter Present) Status Output
  • Optional Battery Temperature Monitoring Before and During Charge
  • Automatic Sleep Mode for Low-power Consumption
  • APPLICATIONS
    • PDAs, MP3 Players
    • Digital Cameras
    • Internet appliances
    • Smartphones

bqTINY is a trademark of Texas Instruments.

Description

The bqTINY-II series are highly-integrated, flexible Li-Ion linear charge and system power management devices for space-limited charger applications. In a single monolithic device, the bqTINY-II offers integrated USB-port and ac-adapter supply management with autonomous power-source selection, power-FET and current-sensor interfaces, high-accuracy current and voltage regulation, charge status, and charge termination.

The bqTINY-II automatically selects the USB-port or the ac-adapter as the power source for the system. In the USB configuration, the host can select from two preset charge rates of 100 mA or 500 mA. In the ac-adapter configuration, an external resistor sets the system or charge current.

The bqTINY-II charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination. The bqTINY-II automatically restarts the charge if the battery voltage falls below an internal threshold. The bqTINY-II automatically enters sleep mode when both supplies are removed.

Different versions of the bqTINY-II offer many additional features. These include a temperature-sensor input for detecting hot or cold battery packs, a power-good output (PG) indicating the presence of input power, a TTL-level charge-enable input (CE) used to disable or enable the charge process, and a TTL-level timer and taper-detect enable input (TTE) used to disable or enable the fast-charge timer and charge termination.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
BQ24020DRCRACTIVE-40 to 1250.99 | 1kuSON (DRC) | 10 View 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24020DRCRG4ACTIVE-40 to 1250.99 | 1kuSON (DRC) | 10 View 3000 | LARGE 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

Reported Distributor Inventory as of 12:06 PM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 8 WeeksBQ24020DRCR
AmericasRochester Electronics >1k
AsiaWPI >1k
TI Lead Time*: 8 WeeksBQ24020DRCRG4
AmericasRochester Electronics >1k
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
BQ24020DRCR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24020DRCRG4 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 BQ24020 Help

Datasheet

Application Notes

View Application Notes for Battery Charge Management

User Guides

View User Guides for Battery Charge Management

Tools & Software

NamePart # Company Tool / Software Type
Temp Sense Designer SoftwareTEMPSENSE-SWTexas InstrumentsAnalysis Software
bq24020 bqTINY-II Evaluation ModuleBQ24020EVMTexas 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
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.
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.
BQ25010 500mA Li-Ion Charger w/Integrated 150mA Synchronous Buck Converter, Output Adjustable BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
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.
BQ24081 1-cell Li-Ion Charger w/ 1-A FET, Timer Enable and Temperature Sensing 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.
BQ24032A Dual Input Li-Ion Charger with Dynamic Power Path, Output regulated to 4.4V, Vbat 4.2V 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.
BQ24010 bqTINY(TM) Linear 1-cell Li-Ion Charger w/ 1-A FET, AC Present and Temp Sense in QFN-10 BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24080 1-cell Li-Ion Charger w/ 1-A FET, AC Present and Charge Enable BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
TPS54231 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™ DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TLV431A Low Voltage Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE TI customers also evaluated this product.
TL431 Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE TI customers also evaluated this product.
TPS73601 Single Output LDO, 400mA, Adj.(1.2 to 5.5V), Cap free, Low Noise, Reverse Current Protection LINEAR REGULATORS-SINGLE CHANNEL LDO 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