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BQ27501 Status: PREVIEW

System-Side Impedance Track Fuel Gauge

      
         
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Datasheet

Download - PDF Icon
  • System-Side Impedance-Track Fuel Gauge (bq27501.pdf, 813 KB)
    23 Oct 2008 Download

 BQ27500-V100 BQ27501
Charge vs Discharge RelationshipC=D  C=D  
Communication InterfaceI2C   
Pin/Package12SON  12SON  
Approx. Price (US$) 1.35 | 1ku   
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ27500-V100: System-Side Impedance Track(TM) Fuel Gauge
  • BQ27000: Single-Cell Li-Ion and Li-Pol Battery Gas Gauge IC
  • BQ27540: Single Cell Li-Ion Battery Manager with Impedance Track Fuel Gauge Technology

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Product Information

Features

  • Battery Fuel Gauge for 1-Series Li-Ion Applications
  • Resides on System Main Board
    • Works With Embedded or Removable Battery Packs
  • Works With Battery ID Resistor in Battery Pack
  • Microcontroller Peripheral Provides:
    • Accurate Battery Fuel Gauging
    • Internal Temperature Sensor for System Temperature Reporting
    • Battery Low Interrupt Warning
    • Battery Insertion Indicator
    • Battery ID Detection
    • 96 Bytes of Non-Volatile Scratch-Pad FLASH
  • Battery Fuel Gauge Based on Patented Impedance Track™ Technology
    • Models the 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 (10㪘 or Less)
  • I2C™ Interface for Connection to System Microcontroller Port
  • 12-Pin 2,5-mm x 4-mm SON Package
  • applications
    • Smartphones
    • PDAs
    • Digital Still and Video Cameras
    • Handheld Terminals
    • MP3 or Multimedia Players

Impedance Track, bqEASY are trademarks of Texas Instruments.
I2C is a trademark of Philips Electronics.

Description

The Texas Instruments bq27501 system-side 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. The bq27501 resids on the system main board, and manages an embedded batery (non-removable) or a removable battery pack.

The device uses the patented impedance Track algoritm for fuel gauging, and provides information such as remaiing battery capacity (mAh), state-of-charge (%), run-time to empty (min.), battery voltage (mV), and temperature (°C).

The device works with identification resistors in battery packs to gauge batteries of different funamental chemistries and/or different rated capacities.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
BQ27501DRZRPREVIEW-40 to 851.35 | 1kuSON (DRZ) | 12 3000 | LARGE T&RNot Available

* 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.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
BQ27501DRZR      View

* 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

Datasheets

  • System-Side Impedance-Track Fuel Gauge (bq27501.pdf, 813 KB)
    23 Oct 2008 Download

Application Notes

  • Using the bq24075 Charger and bq27500/1 Fuel Gauge Together (slua490.htm, 8 KB)
    03 Nov 2008 Abstract
  • Updating Firmware with the bq2750x and EVM (Rev. A) (slua453a.htm, 8 KB)
    22 Jul 2008 Abstract
  • Going to Production with the bq2750x (Rev. B) (slua449b.htm, 8 KB)
    09 Jul 2008 Abstract
  • Using I2C™ Communication with the bq275xx Series of Fuel Gauges (slua467.htm, 8 KB)
    15 May 2008 Abstract
  • Single Cell Impedance Track Printed-Circuit Board Layout (slua457.htm, 8 KB)
    22 Feb 2008 Abstract
  • Single Cell Gas Gauge Circuit Design (slua456.htm, 8 KB)
    22 Feb 2008 Abstract
  • Key Design Considerations for the bq27500 and bq27501 (slua439.htm, 8 KB)
    30 Oct 2007 Abstract

View Application Notes for Battery Fuel Gauges

User Guides

  • bq2750xEVM System Side Single-Cell Impedance Track™ (sluu287.htm, 8 KB)
    24 Oct 2007 Abstract

Simulation Models

  • IBIS Model
    • bq275xx IBIS Model (sluc119.zip, 14 KB)
      06 Oct 2008 zip
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Customers Who Evaluated This Product Also Evaluated...
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BQ27500-V100System-Side Impedance Track(TM) Fuel GaugeTI customers also evaluated this product.
BQ27000Single-Cell Li-Ion and Li-Pol Battery Gas Gauge ICTI customers also evaluated this product.
BQ27540Single Cell Li-Ion Battery Manager with Impedance Track Fuel Gauge TechnologyTI customers also evaluated this product.
BQ20Z90-V150SBS v1.1 Compliant Gas Gauge for Use With the bq29330TI customers also evaluated this product.
BQ27200Single-Cell Li-Ion and Li-Pol Battery Gas Gauge IC with I2C InterfaceTI customers also evaluated this product.
BQ27350Single Cell Li-Ion Battery Manager with Impedance Track Fuel Gauge TechnologyTI customers also evaluated this product.

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