Texas Instruments bq27441 User Manual
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Texas Instruments bq27441 User Manual

Texas Instruments bq27441 User Manual

System-side impedance track technology
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bq27441 EVM: System-Side Impedance Track™
This evaluation module (EVM) is a complete evaluation system for the bq27441. The EVM includes one
bq27441 circuit module with current-sense resistor. A separate orderable EV2300 or EV2400 PC interface
board for gas gauge interface along with a PC USB cable, and Microsoft
needed when using this EVM. The circuit module includes one bq27441 integrated circuit and all other
onboard components necessary to monitor and predict capacity for a system-side fuel gauge solution. The
circuit module connects directly across the battery pack. With the EV2300 or EV2400 interface board and
software, the user can:
•
Read the bq27441 data registers
•
Update the RAM for different configurations
•
Log cycling data for further evaluation
•
Evaluate the overall functionality of the bq27441 solution under different charge and discharge
conditions
The latest Windows-based PC software can be downloaded from the product folder on the Texas
Instruments Web site.
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Microsoft, Windows are registered trademarks of Microsoft Corporation.
All other trademarks are the property of their respective owners.
SLUUAP4A - December 2013 - Revised July 2016
Submit Documentation Feedback
All manuals and user guides at all-guides.com
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Copyright © 2013-2016, Texas Instruments Incorporated
SLUUAP4A - December 2013 - Revised July 2016
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bq27441 EVM: System-Side Impedance Track™ Technology
User's Guide
Technology
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Summary of Contents for Texas Instruments bq27441

  • Page 1: Table Of Contents

    EVM: System-Side Impedance Track™ Technology This evaluation module (EVM) is a complete evaluation system for the bq27441. The EVM includes one bq27441 circuit module with current-sense resistor. A separate orderable EV2300 or EV2400 PC interface board for gas gauge interface along with a PC USB cable, and Microsoft...

  • Page 2: Features

    Software that allows data logging for system analysis Kit Contents • bq27441 circuit module (PWR582) This EVM is used for the evaluation of the bq27441. Visit the product Web folder at www.ti.com properly configure the bq27441. Ordering Information Table 1. Ordering Information...

  • Page 3: Bq27441-Based Circuit Module

    Circuit Module The bq27441-based circuit module is a complete and compact example solution of a bq27441 circuit for battery management. The circuit module incorporates a bq27441 battery gas gauge integrated circuit (IC) with all other components necessary to accurately predict the capacity of a 1-series Li-ion cell.

  • Page 4: Circuit Module Physical Layout, Bill Of Materials, And Schematic

    Circuit Module Physical Layout, Bill of Materials, and Schematic www.ti.com Circuit Module Physical Layout, Bill of Materials, and Schematic This section contains the board layout, bill of materials, and schematic for the bq27441 circuit module. Board Layout This section shows the printed-circuit board (PCB) layers...
  • Page 5 Circuit Module Physical Layout, Bill of Materials, and Schematic www.ti.com Figure 3. bq27441EVM Layout - Power Layer Figure 4. bq27441EVM Layout – Bottom Layer SLUUAP4A – December 2013 – Revised July 2016 bq27441 EVM: System-Side Impedance Track™ Technology Submit Documentation Feedback Copyright © 2013–2016, Texas Instruments Incorporated...

  • Page 6: Bill Of Materials

    0.100 x 0.100 inch 5000 Keystone TP8, TP10 bq27441YZF-G1x IC, Battery Monitor and Data Logger DSBGA bq27441-G1x bq27441 EVM: System-Side Impedance Track™ Technology SLUUAP4A – December 2013 – Revised July 2016 Submit Documentation Feedback Copyright © 2013–2016, Texas Instruments Incorporated...

  • Page 7: Schematic

    Circuit Module Physical Layout, Bill of Materials, and Schematic www.ti.com Schematic Figure 6. bq27441EVM Schematic bq27441 Circuits Module Performance Specification Summary This section summarizes the performance specifications of the bq27441 circuit module. Table 3. Performance Specification Summary Specification Unit Input voltage Pack+ to Pack–...

  • Page 8: Evm Hardware And Software Setup

    The user who is downloading the files must be logged in as the administrator. The driver is not signed, so the administrator must allow installation of unsigned drivers in the operating system. If using Windows 7, install the software with administrator privileges. bq27441 EVM: System-Side Impedance Track™ Technology SLUUAP4A – December 2013 – Revised July 2016 Submit Documentation Feedback...

  • Page 9: Hardware Connection

    PC Interface Connection The following steps configure the hardware for interface to the PC. 1. Connect the bq27441-based EVM to the EV2300 or EV2400 using wire leads as shown in Table 2. Connect the PC USB cable to the EV2300 or EV2400 and the PC USB port.

  • Page 10: Operation

    Make sure that the USB interface (EV2300 or EV2400 or GDK) and the bq27441 are connected and restart bqStudio. If this still does not resolve the issue, check if the I2C pullup resistors are connected. Data begins to appear once the <Refresh> (single-time scan) button is clicked, or when the Scan button is clicked.

  • Page 11: Setting Programmable Bq27441 Options

    Figure 9. bqStudio Default Page Setting Programmable bq27441 Options The bq27441 data memory comes configured per the default settings detailed in the bq27441 data sheet (see SLUSBH1). Ensure that the settings are correctly changed to match the pack and application for the bq27441 solution being evaluated.
  • Page 12 Figure 10. Data Memory Screen To read all the data from the bq27441 non-volatile flash memory, click on the Read All button on the Data Memory window. Make sure the device is not sealed and in full access to read or write to the data memory.

  • Page 13: Calibration

    1. Remove load and short PACK– to LOAD–. 2. Press the Calibrate button. Figure 11. Calibration Screen SLUUAP4A – December 2013 – Revised July 2016 bq27441 EVM: System-Side Impedance Track™ Technology Submit Documentation Feedback Copyright © 2013–2016, Texas Instruments Incorporated...

  • Page 14: I 2 C Communication

    C read/write operations are not specific to any gas gauge. These operations serve as general-purpose communication tools (Figure 12). Figure 12. Advanced Communication I2C bq27441 EVM: System-Side Impedance Track™ Technology SLUUAP4A – December 2013 – Revised July 2016 Submit Documentation Feedback Copyright © 2013–2016, Texas Instruments Incorporated...

  • Page 15: Advanced Communication I 2 C

    Figure 13. Parameter Q&A Screen Figure 14. Golden Image Output Screen Figure 15. Perform Programming Screen SLUUAP4A – December 2013 – Revised July 2016 bq27441 EVM: System-Side Impedance Track™ Technology Submit Documentation Feedback Copyright © 2013–2016, Texas Instruments Incorporated...

  • Page 16: Related Documentation From Texas Instruments

    Related Documentation from Texas Instruments To obtain a copy of any of the following TI documents, call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product Information Center (PIC) at (972) 644-5580. When ordering, identify this document by its title and literature number. Updated documents also can be obtained through the TI Web site at www.ti.com...
  • Page 17 All manuals and user guides at all-guides.com STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.
  • Page 18 All manuals and user guides at all-guides.com FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 19 All manuals and user guides at all-guides.com 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ い。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page SPACER EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
  • Page 20 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2015, Texas Instruments Incorporated...
  • Page 21 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.

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