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BQ25040 Status: ACTIVE

1.1A, Single-Input, Single Cell Li-Ion Battery Charger With 50mA LDO in 2x3 QFN


      
         
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 BQ25040
# Series Cells1  
Charge Current(Max)(A)1.1  
Charge Status Outputs1  
Control TopologyLinear  
Primary Charge Termination MethodMinimum Current  
Pin/Package10WSON  
Vin(Max)(V)30  
Battery Charge Voltage(V)4.2  
Optional FunctionsVovp=6.9V, Vldo=4.9V  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24072: USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, Vout 200mV above Vbat
  • BQ2057C: Low Dropout Linear 1-cell Li-Ion Charge Controller with AutoCompTM, 4.2V
  • BQ24150A: Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support

More Related Products

Product Information

Features

  • 30V Input Rating, with Overvoltage Protection (OVP)
  • Input Voltage Dynamic Power Management Feature
  • 50mA Integrated Low Dropout Linear Regulator (LDO)
  • 1% Charge Voltage Regulation Accuracy
  • 10% Charge Current Accuracy
  • Single-Input Interface Selects USB 100mA, 500mA or User-Programmable Maximum Input Current Limit
  • 4.2V at 2.3A Production Test Mode
  • Thermal Regulation and Thermal Shutdown Protection for Output Current Control
  • Soft-Start Feature to Reduce Inrush Current
  • Status Indication - Power Good and Charging/Done
  • Available in Small 2mm × 3mm DFN-10 Package
  • APPLICATIONS
    • Mobile Phones
    • Smart Phones
    • Portable Media Players
    • Portable Navigation Devices
    • Low-Power Handheld Devices

Description

The bq25040 is an integrated Li-ion linear battery charger targeted at space-limited portable applications. It operates from either a USB port or AC adapter and charges a single cell Li-Ion battery with up to 1.1A of charge current.

The bq25040 has a single power output that charges the battery. A system load can be placed in parallel with the battery. The charge current is programmed using the ISET and EN/SET inputs. The input current limit is programmable to USB100, USB500 or a user programmed current limit up to 1.1A. Additionally, a 4.9V ±3% 50mA LDO is integrated into the IC for supplying low power external circuitry. The single-input interface (EN/SET) is used to select the charge current and to place the bq25040 into Production Test Mode. In Production Test Mode, the bq25040 operates as a linear regulator without a battery connected, where the output is regulated at 4.2V and supplies up to 2.3A to calibrate GSM transceivers.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has accuracy current and voltage regulation loops, charge status display, and charge termination.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
BQ25040DQCRACTIVE-40 to 1251.20 | 1kuWSON (DQC) | 10 3000 | LARGE T&R
BQ25040DQCTACTIVE-40 to 1251.35 | 1kuWSON (DQC) | 10 250 | SMALL T&RPurchase 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, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ25040DQCR
WorldwideDigiKey >1k
TI Lead Time*: 6 WeeksBQ25040DQCT
AsiaFarnell Asia 250
EuropeCompel 210
EBV Elektronik 100
Farnell 250
WorldwideMouser Electronics 240
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
BQ25040DQCR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ25040DQCT 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 BQ25040 Help

Datasheet

User Guides

View User Guides for Battery Charge Management

Tools & Software

NamePart # Company Tool / Software Type
BQ25040 Evaluation Module: 1.1-A, Single-Input, Single-Cell, Li-Ion Battery ChargerBQ25040EVMTexas 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.
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.
BQ24150A Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support 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.
BQ24104 Synchronous Switchmode, Li-Ion & Li-Pol Charge Mngmt IC (bqSwitcher) BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24055 800mA, Single-Input, Single Cell Li-Ion Battery Charger with Automatic AC/USB Detection and PG BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.

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