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BQ24381 Status: ACTIVE

Overvoltage/Overcurrent Protection IC and Li+ Charger Front End Protection IC with LDO Mode, 7.1 OVP


      
         
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 BQ24380 BQ24381BQ24382 
Input Voltage(Max)(V)30  30  30  
Input Over-Voltage Protection(V)6.3  7.1  10.5  
Battery Over-Voltage Protection(Max)(V)5.7  5.2  5  
Battery Over-Voltage Protection(Typ)(V)5.5  5  5  
Optional FunctionsFault Indication  Fault Indication  Fault Indication  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24314: Charger front end protection IC with 30V max vin and 5.85V OVP

Product Information

Features

  • Input Overvoltage Protection
  • Accurate Battery Overvoltage Protection
  • Output Short-Circuit Protection
  • Soft-Start to Prevent Inrush Currents
  • Soft-Stop to Prevent Voltage Spikes
  • 30-V Maximum Input Voltage
  • Supports up to 1.7-A Load Current
  • Thermal Shutdown
  • Enable Function
  • Fault Status Indication
  • Small 2 mm × 2 mm 8-Pin SON Package
  • APPLICATIONS
    • Smart Phones, Mobile Phones
    • PDAs
    • MP3 Players
    • Low-Power Handheld Devices

PowerPAD is a trademark of Texas Instruments.

Description

The bq2438x family are charger front-end integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuitry. The IC continuously monitors the input voltage and the battery voltage. The device operates like a linear regulator, maintaining a 5.5-V (bq24380) or 5-V (bq24381, bq24382) output with input voltages up to the Input overvoltage threshold. During input overvoltage conditions, the IC immediately turns off the internal pass FET disconnecting the charging circuitry from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system. The IC checks for short-circuit or overload conditions at its output when turning the pass FET on, and if it finds unsafe conditions, it switches off, and then rechecks the conditions. Additionally, the IC also monitors its die temperature and switches off if it exceeds 140°C.

When the IC is controlled by a processor, the IC provides status information about fault conditions to the host.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
BQ24381DSGRACTIVE-40 to 1250.55 | 1kuSON (DSG) | 8 3000 | LARGE T&R
BQ24381DSGRG4ACTIVE-40 to 1250.55 | 1kuSON (DSG) | 8 3000 | LARGE T&R
BQ24381DSGTACTIVE-40 to 1250.65 | 1kuSON (DSG) | 8 250 | SMALL T&RPurchase Samples
BQ24381DSGTG4ACTIVE-40 to 1250.65 | 1kuSON (DSG) | 8 250 | 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*: 4 WeeksBQ24381DSGR
WorldwideDigiKey 944
TI Lead Time*: 4 WeeksBQ24381DSGRG4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksBQ24381DSGT
AsiaFarnell Asia 249
EuropeFarnell 249
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksBQ24381DSGTG4
WorldwideDigiKey  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
BQ24381DSGR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24381DSGRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24381DSGT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24381DSGTG4 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 BQ24381 Help

Datasheet

User Guides

Tools & Software

NamePart # Company Tool / Software Type
BQ24381 Evaluation ModuleBQ24381EVMTexas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
BQ24314 Charger front end protection IC with 30V max vin and 5.85V OVP BATTERY MANAGEMENT-CHARGER FRONT END PROTECTION TI customers also evaluated this product.

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