Datasheet Texas Instruments BQ27520-G1

Manufacturer	Texas Instruments
Series	BQ27520-G1

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Application Notes

• Download
  Single Cell Gas Gauge Circuit Design
  PDF, 154 Kb, File published: Feb 22, 2008
• Download
  Using I2C Communication With the bq275xx Series of Fuel Gauges (Rev. B)
  PDF, 53 Kb, Revision: B, File published: May 15, 2014
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  Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm
  PDF, 608 Kb, File published: Jan 31, 2008
  This application report outlines the theory of Impedance Trackв„ў (IT) technology used in the bq2750x series of fuel gauge ICs for single-cell Li-ion applications (e.g., smart phones, media players, and PDAs). The implementation of the IT algorithm in the bq2750x family is reviewed, and the settings of data flash constants associated with the fuel-gauging algorithm is described in detail.
• Download
  Single Cell Impedance Track Printed-Circuit Board Layout
  PDF, 403 Kb, File published: Feb 22, 2008
  bq20z70/90 Printed-Circuit Board Layout Guide
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  Impedance Track Fuel Gauge Accuracy Test for GSM Phone Applications
  PDF, 393 Kb, File published: Mar 21, 2008
  The Texas Instruments Impedance Trackв„ў (IT) fuel gauge is designed for reporting remaining battery capacity and run time accurately. To effectively accomplish this reporting a real application environment must be used for test results. The test board should be designed as similar to the real application circuit as possible. This application report outlines the procedure for implementing an accurac
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  bq27520-G1 to bq27520-G2 Change List
  PDF, 60 Kb, File published: Feb 7, 2012
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  bq27520-G3 to bq27520-G4 Change List
  PDF, 38 Kb, File published: Oct 23, 2012
  bq27520-G3, bq27520-G4, bq27520-G2, bq27520-G1, bq27520EVM bq27520-G3 to bq27520-G4 Change List
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  Achieving the Successful Learning Cycle
  PDF, 46 Kb, File published: May 12, 2011
  bq27500, bq27501, bq27510, bq27505, bq27541, bq27520 Achieving the Successful Learning Cycle
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  bq27520-G2 to bq27520-G3 Change List
  PDF, 43 Kb, File published: Feb 7, 2012
• Download
  WinCE/Linux Drivers for bq275xx Fuel Gauge
  PDF, 188 Kb, File published: Mar 17, 2011
  The bq275xx gas gauge integrated circuits (IC) can use an I2C line for communication with the host system. It is necessary to allow application-layer software on the host system to access parameters made available by the gas gauge IC. Multiple levels of abstraction are between the gauge and a given application. This document describes an example implementation of each of these layers in an effo
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  Updating Firmware with the bq2750x and EVM (Rev. A)
  PDF, 955 Kb, Revision: A, File published: Jul 22, 2008
  This application report provides the procedure to update bq2750x firmware and the learned golden image (*.DFI file) in bq27500 data flash from the previous firmware version.
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  Host-Side Gas-Gauge-System Design Considerations for Single-Cell Handheld Apps
  PDF, 152 Kb, File published: Oct 12, 2007
• Download
  Single Cell Gas Gauge Application Book
  PDF, 9.7 Mb, File published: Jul 28, 2008
• Download
  Improving Battery Safety, Charging, and Fuel Gauging in Portable Media Apps
  PDF, 570 Kb, File published: Mar 11, 2009

Model Line

Manufacturer's Classification

• Semiconductors> Power Management> Battery Management Products> Battery Fuel Gauge