Datasheet Texas Instruments BQ20Z45DBT-R1

Manufacturer	Texas Instruments
Series	BQ20Z45-R1
Part Number	BQ20Z45DBT-R1

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Application Notes

• Download
  Thermistor Selection Guide for Texas Instruments Advanced Fuel Gauges
  PDF, 564 Kb, File published: Sep 28, 2011
  bq20z40, bq20z45, bq20z60, bq20z65, bq20z70, bq20z75, bq20z80, bq20z90, bq20z95, bq27410, Thermistor Selection Guide for Texas Instruments Advanced Fuel Guages
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  bq20z40/bq20z45 Change List
  PDF, 58 Kb, File published: Jun 29, 2009
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  bq20z40/45 and bq20z60/65 Gas Gauge Circuit Design
  PDF, 349 Kb, File published: Aug 10, 2009
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  Information to Provide When Reporting Issues With TI Gauges
  PDF, 975 Kb, File published: Jul 18, 2008
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  Cell Balancing Using the bq20zxx (Rev. C)
  PDF, 208 Kb, Revision: C, File published: Jan 12, 2011
  This application report discusses three types of cell imbalances that are observed in a battery pack withserially connected cells.
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  Configuring the bq20z40/bq20z45 Data Flash (Rev. B)
  PDF, 3.3 Mb, Revision: B, File published: Nov 11, 2013
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  bq20z40/bq20z45 and bq20z60/bq20z65 Data Flash Comparison
  PDF, 236 Kb, File published: Jul 9, 2009
  This document compares the data flash values and functionality of the bq20z40/bq20z45 and the bq20z60/bq20z65 family of gas gauges. The comparisons are presented in tabular format.
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  bq20z40/45 and bq20z60/65 EVM Data Flash Settings for Number of Serial Cells
  PDF, 179 Kb, File published: Aug 7, 2009
  This application report describes the configuration changes in the data flash constants in the Texas Instruments bq20z40/45 and bq20z60/65 Gas Gauging Evaluation Software required for a variety of battery-pack configurations.
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  Updating Firmware With the bq20zxx and EVM (Rev. B)
  PDF, 54 Kb, Revision: B, File published: Nov 7, 2006
  This application report presents the steps necessary to update the bq20z80 firmware and the EVM.
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  Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. A)
  PDF, 1.0 Mb, Revision: A, File published: Jul 25, 2011
  This application report describes a smart-battery charger reference design with a wide-input-voltage range. The reference design implements the System Management Bus (SMBus) protocol for communication between the MSP430 microcontroller and a SMBus-compatible battery fuel gauge. The MSP430 device interrogates the fuel gauge for voltage, current, and other parameters via SMBus. It then adjusts the p
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  Data Flash Programing and Calibrating the bq20zxx Family of Gas Gauges (Rev. E)
  PDF, 230 Kb, Revision: E, File published: Sep 14, 2013
  bq20zxx Data Flash Programing & Calibrating the bq20zxx Family of Gas Gauges
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  Pack Assembly and the bq20zxx (Rev. B)
  PDF, 35 Kb, Revision: B, File published: Nov 7, 2006
  This application report describes a recommended assembly sequence for the bq20z80-based battery pack. This procedure results in the most time-efficient setup of the battery pack. Included are steps for connecting a 4-series cell battery to the bq20z80EVM-001.
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  Thermistor Coefficient Calculator for TI Advanced Fuel Gauges
  PDF, 58 Kb, File published: Oct 4, 2006
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  Design 2: Avoiding ESD and EMI Problems in bq20zxx Battery Pack Electronics
  PDF, 113 Kb, File published: Nov 11, 2005
  In an increasingly wireless world, electrostatic discharge and electromagnetic interference are both potential issues for portable battery packs. This application report discusses the causes of ESD and EMI issues in battery pack designs and offers solutions for mitigation.
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  Design 4: Support of Multiple Li-Ion Chemistries w/Impedance Track(TM) Gas Gauge (Rev. R)
  PDF, 87 Kb, Revision: R, File published: Oct 15, 2009
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  bq20z40/45/60/65 Printed-Circuit Board Layout Guide
  PDF, 409 Kb, File published: Dec 3, 2009
  Attention to layout is critical to the success of any battery management circuit board. The mixture of high-current paths with an ultralow-current microcontroller creates the potential for design issues that can be challenging to solve. This application report presents guidelines to ensure a stable and well-performing project.
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  Battery Pack Production Flow With bq20zXX
  PDF, 62 Kb, File published: Aug 2, 2006
  This application report presents a battery pack production flow diagram for bq20zXX devices and discusses each step in detail.
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  bq20z70 and bq20z90 Application Book
  PDF, 14.2 Mb, File published: Dec 13, 2006
  This document introduces the bq20z70/z90 Impedance Trackв„ў and bq29330 chipset gas gauge solution
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  BQ20Z40/45 to BQ20Z40-R1/45-R1 change document
  PDF, 21 Kb, File published: Feb 23, 2011
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  Quick-Start Guide for bq20zxx Family Gas Gauges (Rev. A)
  PDF, 4.4 Mb, Revision: A, File published: Sep 4, 2007
  The intent of this application report is to give the user an overview of the design process, how to use the evaluation module and software, and to provide helpful troubleshooting techniques.This document begins with setting up the evaluation module and working with bq Evaluation Software. Several tips for troubleshooting the software connection are included, as well as navigation and what to l
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  Fast Cell Balancing Using External MOSFET (Rev. A)
  PDF, 153 Kb, Revision: A, File published: Jan 26, 2009
  The need for cell balancing comes from the fact that cell-to-cell differences in self-discharge, capacity, and impedance can lead to different charge states among the cells. However, the charger terminates the charge based on the summed voltage only, which may leave some cells undercharged and others overcharged. To remedy this imbalance and to achieve the goal of having all cells reaching 100% st

Model Line

Manufacturer's Classification

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

Other Names:

BQ20Z45DBTR1, BQ20Z45DBT R1