Datasheet Texas Instruments BQ20Z90DBT — 数据表

制造商	Texas Instruments
系列	BQ20Z90
零件号	BQ20Z90DBT

数据表

价格

状态

打包

生态计划

设计套件和评估模块

• Evaluation Modules & Boards: BQ20Z90EVM-001
  BQ20Z90EVM Evaluation Module for 2nd Generation Impedance TrackВ™
  Lifecycle Status: Obsolete (Manufacturer has discontinued the production of the device)
  
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• Evaluation Modules & Boards: BQMTESTER
  BQMTESTER Multi Channel Test and Program Board
  Lifecycle Status: Active (Recommended for new designs)
  
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• Evaluation Modules & Boards: BQTESTER
  Single Channel Tester
  Lifecycle Status: Active (Recommended for new designs)
  
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应用须知

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  bq20z90-V110 to bq20z90-V150 Change List
  PDF, 34 Kb, 档案已发布: Jan 11, 2008
  bq20z90-V150 Design Considerations
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  bq20z80 EVM Data Flash Settings for Num of Serial Cells/Pack Cap (Rev. B)
  PDF, 1.1 Mb, 修订版: B, 档案已发布: Nov 6, 2006
  This application report describes the configuration changes in the data flash constants in the Texas Instruments bq20z80 Gas Gauge Evaluation Software for a variety of battery-pack configurations.
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  Operating Fuel Gauge bq20z7x/8x/9x and SMBus-Like bq24745/47/65 Chargers
  PDF, 132 Kb, 档案已发布: Oct 6, 2009
  The smart charger bq24747/765 is a high-efficiency, synchronous battery charger with an integrated input current comparator. This charger provides low component count for space constrained, multichemistry battery charging applications. SMBus input current, charge current, and input current digital-to-analog converters allow for very high regulation accuracies that the system power management micr
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  bq20z70 and bq20z90 Application Book
  PDF, 14.2 Mb, 档案已发布: Dec 13, 2006
  This document introduces the bq20z70/z90 Impedance Trackв„ў and bq29330 chipset gas gauge solution
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  Cell Balancing Using the bq20zxx (Rev. C)
  PDF, 208 Kb, 修订版: C, 档案已发布: 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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  Pack Assembly and the bq20zxx (Rev. B)
  PDF, 35 Kb, 修订版: B, 档案已发布: 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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  Updating Firmware With the bq20zxx and EVM (Rev. B)
  PDF, 54 Kb, 修订版: B, 档案已发布: Nov 7, 2006
  This application report presents the steps necessary to update the bq20z80 firmware and the EVM.
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  2-Series-Cell Considerations for Advanced Fuel Gauges
  PDF, 154 Kb, 档案已发布: May 9, 2008
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  Cell-type Specific Settings for Cell Imbalance Permanent Failure Thresholds
  PDF, 100 Kb, 档案已发布: Sep 28, 2007
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  Quick-Start Guide for bq20zxx Family Gas Gauges (Rev. A)
  PDF, 4.4 Mb, 修订版: A, 档案已发布: 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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  Design 4: Support of Multiple Li-Ion Chemistries w/Impedance Track(TM) Gas Gauge (Rev. R)
  PDF, 87 Kb, 修订版: R, 档案已发布: Oct 15, 2009
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  Fast Cell Balancing Using External MOSFET (Rev. A)
  PDF, 153 Kb, 修订版: A, 档案已发布: 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
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  bq29330 External Short Circuit Protection
  PDF, 155 Kb, 档案已发布: Aug 22, 2007
  In Li-ion battery pack design, short-circuit protection should be given sufficient emphasis to ensure that even if an external pack short does occur, it is benign. Properly designed battery fuel gauge solutions using the bq29330 analog front-end (AFE) protector and bq20z70, bq20z75, bq20z90, and bq20z95 fuel gauge ICs not only safeguards the battery, but also ensures a full recovery of functionali
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  Thermistor Coefficient Calculator for TI Advanced Fuel Gauges
  PDF, 58 Kb, 档案已发布: Oct 4, 2006
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  bq20z90 (v1.10) Change List
  PDF, 18 Kb, 档案已发布: Oct 18, 2006
  This document describes the changes being made to the previously released bq20z90 (v102) design.
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  Configuring the bq20z90 Data Flash
  PDF, 3.0 Mb, 档案已发布: Dec 20, 2006
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  Cell balancing buys extra run time and battery life
  PDF, 575 Kb, 档案已发布: Mar 11, 2009
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  Data Flash Programming Using the EV Software (Rev. A)
  PDF, 53 Kb, 修订版: A, 档案已发布: Jul 27, 2009
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  bq20z70/90 Gas Gauge Circuit Design
  PDF, 1.1 Mb, 档案已发布: Aug 23, 2006
  Components in the bq20z70/90 chipset reference design are explained in this application report. Design analysis and suggested tradeoffs are provided, where appropriate.
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  Exploring the bq20z70/90 Impedance Track(TM) Evaluation Kit
  PDF, 2.6 Mb, 档案已发布: Nov 27, 2006
  The bq20z70/90 evaluation module (EVM) and its corresponding evaluation software provides a rich and effective environment for examining the bq20z70/90 - a new, advanced battery gas gauge. This application report covers this EVM and software with an emphasis on how to use it and what to expect. EVM board connections are discussed in detail, and helpful hints are offered. For the evaluation softwar
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  bq20z70/90 Printed-Circuit Board Layout Guide
  PDF, 311 Kb, 档案已发布: Aug 2, 2006
  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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  Evaluation 1: Impedance Track Gas Gauge for Novice – bq20z70/z90
  PDF, 262 Kb, 档案已发布: Oct 9, 2006
  This document introduces the bq20z70/z90 Impedance Track and bq29330 chipset gas gauge solution.
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  bq20z70, bq20z75, bq20z90, and bq20z95 Voltage Current & Measurement Accuracy
  PDF, 58 Kb, 档案已发布: Mar 18, 2008
  This document describes the accuracy capabilities of the bq20z70, bq20z75, bq20z90, and bq20z95 solutions. All data shown in this document was gathered empirically
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  Information to Provide When Reporting Issues With TI Gauges
  PDF, 975 Kb, 档案已发布: Jul 18, 2008
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  SMBus Made Simple
  PDF, 502 Kb, 档案已发布: Nov 9, 2016
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  Data Flash Programing and Calibrating the bq20zxx Family of Gas Gauges (Rev. E)
  PDF, 230 Kb, 修订版: E, 档案已发布: Sep 14, 2013
  bq20zxx Data Flash Programing & Calibrating the bq20zxx Family of Gas Gauges
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  Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. A)
  PDF, 1.0 Mb, 修订版: A, 档案已发布: 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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  Production 2: Data Flash Programming/Calibrating the bq20z80 Gas Gauges (Rev. B) (Rev. B)
  PDF, 235 Kb, 修订版: B, 档案已发布: Jan 12, 2010
  This application report presents a strategy for high-speed, economical calibration and data flash programming of the bq20z80 advanced gas gauge chipset family. VB6 code examples are provided, along with step-by-step instructions for preparing a golden battery pack.
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  Evaluation 3: Theory/Implementation Impedance Track Battery Fuel-Gauging Algo (Rev. B)
  PDF, 101 Kb, 修订版: B, 档案已发布: Dec 20, 2006
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  Battery Pack Production Flow With bq20zXX
  PDF, 62 Kb, 档案已发布: 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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  Design 2: Avoiding ESD and EMI Problems in bq20zxx Battery Pack Electronics
  PDF, 113 Kb, 档案已发布: 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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  Evaluation 7: Preparing Optimized Data Flash Constants (Rev. B)
  PDF, 29 Kb, 修订版: B, 档案已发布: Dec 4, 2006
  Impedance Track в„ў technology allows bq20z80 fuel gauge ICs to automatically acquire and maintain parameters for battery modeling needed for continuous fuel-gauge accuracy, regardless of battery model or manufacturer. This application report discusses how to prepare optimized default flash constants for specific battery types.
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  Thermistor Selection Guide for Texas Instruments Advanced Fuel Gauges
  PDF, 564 Kb, 档案已发布: 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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  Q1 2009 Issue Analog Applications Journal
  PDF, 1.4 Mb, 档案已发布: Mar 11, 2009

模型线

制造商分类

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