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National Semiconductor bq24188 User Manual

Wcsp-packaged 2-a battery charger evaluation module
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User's Guide for WCSP-Packaged bq24188 2-A Battery
The bq24188 evaluation module is a complete charger module for evaluating compact, flexible, high-
efficiency, USB-friendly, switch-mode charge management solutions for single-cell, Li-ion and Li-polymer
batteries used in a wide range of portable applications.
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SLUUB72 - January 2015
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User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation
Copyright © 2015, Texas Instruments Incorporated
Charger Evaluation Module
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User's Guide
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  • Page 1: Table Of Contents

    User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation Module The bq24188 evaluation module is a complete charger module for evaluating compact, flexible, high- efficiency, USB-friendly, switch-mode charge management solutions for single-cell, Li-ion and Li-polymer batteries used in a wide range of portable applications.

  • Page 2: Introduction

    For details, see the bq24188 data sheet (SLUSC44). bq24188 EVM Features The bq24188 evaluation module (EVM) on PCB PWR691 provide a complete charger module for evaluating compact, flexible, high-efficiency, USB-friendly, switch-mode battery charge and power path management solution for single-cell, Li-ion and Li-polymer battery-powered systems used in a wide range of portable applications.

  • Page 3: Schematic

    TP11 12.4k 1.50k 1.50k 22-05-3041 STAT 3266W-1-104LF 100k 1 See BOM for values Figure 1. bq24188EVM Schematic SLUUB72 – January 2015 User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 4: I/O Description

    Battery positive and negative header J15 - USB-to-GPIO USB-to-GPIO box keyed connector Test Points Test Point Description STAT TP10 TP11 User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation SLUUB72 – January 2015 Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 5: Control And Key Parameters Setting

    Fast charge current, Battery charge current (registers set via I2C communication) 0.500 CHRG(MAX) Operating junction temperature range, T °C SLUUB72 – January 2015 User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 6: Test Summary

    Figure 2 can simulate a battery when connected to a power supply. User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation SLUUB72 – January 2015 Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 7: Bat_Load (Pr1010) Schematic

    Four equivalent voltage meters (VM #) and two equivalent current meters (CM #) are required. The current meters must be able to measure 2-A current. 2.2.5 Computer A computer with at least one USB port and a USB cable is required. The bq24188 evaluation software must be properly installed. 2.2.6 HPA172 Communication Kit (USB TO GPIO) An HPA172 USB-to-I C communication kit is required.

  • Page 8: Recommended Test Equipment Setup

    1.6. 9. After the preceding steps have been performed, the test setup for BQ24188EVM-691 is configured as is shown in Figure User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation SLUUB72 – January 2015 Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 9: Original Test Setup For Bq24188Evm-691

    Test Summary www.ti.com Figure 4. Original Test Setup for BQ24188EVM-691 10. Turn on the computer. Open the bq24188 evaluation software. The main window of the software is shown in Figure SLUUB72 – January 2015 User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation...

  • Page 10: Recommended Test Procedure

    7. Install voltage meter #2 (VM #2) across J13 and J5 or TP1 and TP7 (BAT and GND). 8. Install voltage meter #3 (VM #3) across J12 and J10 or TP4 and TP7 (SYS and GND). User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation SLUUB72 – January 2015...
  • Page 11 (1000 µF+) capacitor at the EVM BAT and GND connectors in order to prevent oscillations at the BAT pin due to mismatched impedances of the charger output and SLUUB72 – January 2015 User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation Module Submit Documentation Feedback...

  • Page 12: Printed-Circuit Board Layout Guideline

    7. For high-current applications, the balls for the power paths must be connected to as much copper in the board as possible. This allows better thermal performance because the board conducts heat away from the IC. User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation SLUUB72 – January 2015 Module Submit Documentation Feedback Copyright ©...

  • Page 13: Bill Of Materials And Board Layout

    2A, 30V, Host-Controlled Single-Input, Single Cell Switchmode Li-Ion Battery Charger Texas Instruments BQ24188YFF with Power Path Management and USB-OTG Support, YFF0036ADAD SLUUB72 – January 2015 User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 14: Board Layout

    Figure 6 through Figure 11 illustrate the PCB layouts for this EVM. Figure 6. Top Assembly Layer User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation SLUUB72 – January 2015 Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 15: Top Layer

    Bill of Materials and Board Layout www.ti.com Figure 7. Top Layer SLUUB72 – January 2015 User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 16: First Internal Layer

    Bill of Materials and Board Layout www.ti.com Figure 8. First Internal Layer User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation SLUUB72 – January 2015 Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 17: Second Internal Layer

    Bill of Materials and Board Layout www.ti.com Figure 9. Second Internal Layer SLUUB72 – January 2015 User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 18: Bottom Layer

    Bill of Materials and Board Layout www.ti.com Figure 10. Bottom Layer User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation SLUUB72 – January 2015 Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 19: Bottom Assembly Drawing

    Bill of Materials and Board Layout www.ti.com Figure 11. Bottom Assembly Drawing SLUUB72 – January 2015 User's Guide for WCSP-Packaged bq24188 2-A Battery Charger Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...
  • Page 20 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 21 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 22 【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】 本開発キットは技術基準適合証明を受けておりません。 本製品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 23 SPACER Disclaimers: 6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY WRITTEN DESIGN MATERIALS PROVIDED WITH THE EVM (AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.
  • Page 24 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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