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BQ24304 Status: ACTIVE

Charger front end protection IC with 30V max Vin and 4.5V LDO output


      
         
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Datasheet

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Functional Block Diagram


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 BQ24300 BQ24304BQ24305 BQ24314 BQ24314A BQ24315 BQ24316 
Input Voltage(Max)(V)30  30  30  30  30  30  30  
Input Over-Voltage Protection(V)10.5  10.5  10.5  5.85  5.85  5.85  6.80  
Input Over-Current Protection(A)0.3  0.3  0.3  Programmable up to 1.5  1.5  1.5  Programmable up to 1.5  
Battery Over-Voltage Protection(Max)(V)4.4  4.4  4.4  4.4  4.4  4.4  4.4  
Battery Over-Voltage Protection(Typ)(V)4.35  4.35  4.35  4.35  4.35  4.35  4.35  
Optional FunctionsReverse polarity protection  Reverse polarity protection  Reverse polarity protection  Fault indication   Fault Indication  Fault indication  
 SamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24316: Charger front end protection IC with 30V max Vin and 6.8V OVP
  • TPS62402: Dual, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN
  • TPA2031D1: 2.5-W Mono Class-D Audio Power Amplifier with Slow Start-Up (TPA2031)
  • SN74LVC240A: Octal Buffer/Driver With 3-State Outputs

Product Information

Features

  • Provides Protection for Three Variables:
    • Input Overvoltage
    • Input Overcurrent with Current Limiting
    • Battery Overvoltage
  • 30V Maximum Input Voltage
  • Optional Input Reverse Polarity Protection
  • High Immunity Against False Triggering Due to Voltage Spikes
  • Robust Against False Triggering Due to Current Transients
  • Thermal Shutdown
  • Enable Function
  • Small 2 mm × 2 mm 8-Pin SON Package
  • LDO Mode Voltage Regulation Options:
    • 5.5V on bq24300
    • 4.5V on bq24304
    • 5.0V on bq24305
  • APPLICATIONS
    • Bluetooth Headsets
    • Low-Power Handheld Devices

PowerPAD Is a trademark of Texas Instruments

Description

The bq24300 and bq24304 are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The device operates like a linear regulator: for voltages up to the Input Overvoltage threshold, the output is held at 5.5V (bq24300), 5.0V (bq24305) or 4.5V (bq24304). In case of an input overvoltage condition, if the overvoltage condition persists for more than a few microseconds, the IC removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the current to a safe value for a blanking duration before turning the switch off.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSymbolsSamples
BQ24304DSGRACTIVE0 to 1250.55 | 1kuSON (DSG) | 8 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24304DSGRG4ACTIVE0 to 1250.55 | 1kuSON (DSG) | 8 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24304DSGTACTIVE0 to 1250.65 | 1kuSON (DSG) | 8 250 | SMALL T&R Download CAD Format for this SymbolPurchase Samples
BQ24304DSGTG4ACTIVE0 to 1250.65 | 1kuSON (DSG) | 8 250 | 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 12:14 PM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 16 WeeksBQ24304DSGR
EuropeCompel 49
WorldwideDigiKey 217
TI Lead Time*: 16 WeeksBQ24304DSGRG4
EuropeEBV Elektronik >1k
WorldwideDigiKey  Available
TI Lead Time*: 16 WeeksBQ24304DSGT
WorldwideDigiKey  Available
TI Lead Time*: 16 WeeksBQ24304DSGTG4
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
BQ24304DSGR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 
BQ24304DSGRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 
BQ24304DSGT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 
BQ24304DSGTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 

* 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 BQ24304 Help

Datasheet

Application Notes

User Guides

Tools & Software

NamePart # Company Tool / Software Type
BQ24304 Evaluation Module for Li+ Charger and Front End Protection ICBQ24304EVMTexas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
BQ24316 Charger front end protection IC with 30V max Vin and 6.8V OVP BATTERY MANAGEMENT-CHARGER FRONT END PROTECTION TI customers also evaluated this product.
TPS62402 Dual, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPA2031D1 2.5-W Mono Class-D Audio Power Amplifier with Slow Start-Up (TPA2031) DIGITAL AMPLIFIER SOLUTIONS-ANALOG-INPUT CLASS-D SPEAKER AMPLIFIERS TI customers also evaluated this product.
SN74LVC240A Octal Buffer/Driver With 3-State Outputs BUFFERS, DRIVERS AND TRANSCEIVERS-INVERTING BUFFERS AND DRIVERS TI customers also evaluated this product.
TPS73733 Single Output LDO, 1A, Fixed (3.3V), Reverse Current Protection LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPA6112A2 150-mW Stereo Headphone Audio Amplifier with Differential Input AUDIO AMPLIFIERS-HEADPHONE AMPLIFIERS TI customers also evaluated this product.
SN74LS244 Octal Buffers And Line Drivers With 3-State Outputs BUFFERS, DRIVERS AND TRANSCEIVERS-NON-INVERTING BUFFERS AND DRIVERS TI customers also evaluated this product.
TPS79501 Single Output LDO, 500mA, Adj.(1.2 to 5.5V), Low Noise, High PSRR LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
SN74HC245 Octal Bus Transceivers With 3-State Outputs BUFFERS, DRIVERS AND TRANSCEIVERS-STANDARD TRANSCEIVERS TI customers also evaluated this product.
TPS23750 IEEE 802.3af PD Controller with Integrated DC/DC POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES TI customers also evaluated this product.
OPA2348 1MHz, 45uA, RRIO, Dual Op Amp PRECISION AMPLIFIER-LOW INPUT BIAS CURRENT/FET INPUT TI customers also evaluated this product.

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