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BQ27541 Status: ACTIVE

Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration


      
         
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 BQ27541
Battery Capacity(Min)(mAh)800  
Battery Capacity(Max)(mAh)6000  
Communication InterfaceHDQ, I2C  
# Series Cells1  
Pin/Package12SON  
Approx. Price (US$) 1.45 | 1ku  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • BQ27501: Complete System Side Battery Fuel Gauge with Impedance Track™ technology
  • BQ27500-V120: System-Side Impedance Track™ Fuel Gauge
  • BQ27200: Single-Cell Li-Ion and Li-Pol Battery Gas Gauge IC with I2C Interface
  • BQ24705: Host-Controlled Multi-Chemistry Battery Charger With Low Input Power Detect
  • BQ77PL900: 5-10 cell Li-ion Battery protection & AFE
  • TPS51125: Dual-Synchronous, Step-Down Controller with Out-of-AudioT Operation and 100-mA LDOs

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Product Information

Features

  • Battery Fuel Gauge for 1-Series Li-Ion Applications
  • Microcontroller Peripheral Provides:
    • Accurate Battery Fuel Gauging
    • Internal Temperature Sensor for System Temperature Reporting
    • SHA-1/HMAC Authentication
    • 96 Bytes of Non-Volatile Scratch Pad FLASH
  • Battery Fuel Gauging Based on Patented Impedance Track Technology
    • Models Battery Discharge Curve for Accurate Time-To-Empty Predictions
    • Automatically Adjusts for Battery Aging, Battery Self-Discharge, and Temperature/Rate Inefficiencies
    • Low-Value Sense Resistor (5 mΩ to 20 mΩ)
  • HDQ and I2C Interface Formats for Communication with Host System
  • Small 12-pin 2,5 mm × 4 mm SON Package
  • APPLICATIONS
    • Smartphones
    • PDAs
    • Digital Still and Video Cameras
    • Handheld Terminals
    • MP3 or Multimedia Players

Description

The Texas Instruments bq27541 Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development for accurate battery fuel gauging. The bq27541 resides within the battery pack or on the system's main-board with an embedded battery (nonremovable).

The bq27541 uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min.), battery voltage (mV), and temperature (°C).

The bq27541 also features integrated support for secure battery pack authentication, using the SHA-1/HMAC authentication algorithm.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
BQ27541DRZRACTIVE-40 to 851.45 | 1kuSON (DRZ) | 12 3000 | LARGE T&RPurchase Samples
BQ27541DRZTACTIVE-40 to 851.60 | 1kuSON (DRZ) | 12 250 | SMALL T&R

* 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 WeeksBQ27541DRZR
AsiaWPI 177
TI Lead Time*: 16 WeeksBQ27541DRZT
None Reported
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** 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
BQ27541DRZR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ27541DRZT 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 BQ27541 Help

Datasheet

Application Notes

View Application Notes for Battery Fuel Gauges

User Guides

White Papers

Tools & Software

NamePart # Company Tool / Software Type
BQ27541 Single Cell Impedance Track™ Technology Evaluation ModuleBQ27541EVMTexas InstrumentsDevelopment Boards/EVMs

Part # Name Product Family Comments
BQ24150   Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support   BATTERY MANAGEMENT - BATTERY CHARGE MANAGEMENT      
Customers Who Evaluated This Product Also Evaluated...
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BQ27200 Single-Cell Li-Ion and Li-Pol Battery Gas Gauge IC with I2C Interface BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
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