Texas Instruments bq2415x User Manual
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Texas Instruments bq2415x User Manual

Texas Instruments bq2415x User Manual

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This user's guide describes the features, setup, and operation of the bq2415x RGY evaluation board.
Included are the bill of materials, board layout, and schematic.
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Recommended Operating Conditions
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C is a trademark of Koninklijke Philips Electronics NV.
SLUU366A - March 2010 - Revised April 2010
Submit Documentation Feedback
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Copyright © 2010, Texas Instruments Incorporated
SLUU366A - March 2010 - Revised April 2010
bq2415x RGY EVM (HPA255)
Contents
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List of Figures
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List of Tables
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User's Guide
bq2415x RGY EVM (HPA255)
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Summary of Contents for Texas Instruments bq2415x

  • Page 1: Table Of Contents

    User's Guide SLUU366A – March 2010 – Revised April 2010 bq2415x RGY EVM (HPA255) This user's guide describes the features, setup, and operation of the bq2415x RGY evaluation board. Included are the bill of materials, board layout, and schematic. Contents ........................

  • Page 2: Introduction

    Jumpers available. Easy to change connections. General Description The bq2415x evaluation module is a complete charger module for evaluating compact, flexible, high-efficiency, USB-friendly switch-mode charge management solution for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications.

  • Page 3: Recommended Operating Conditions

    Maximum input current from ac adapter 0.1–0.5 input Charge current, I Battery charge current 0.55 1.25 chrg Operating junction temperature range, T °C SLUU366A – March 2010 – Revised April 2010 bq2415x RGY EVM (HPA255) Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...

  • Page 4: Test Summary

    Or: Two equivalent voltage meters and two equivalent current meters. The current meters must be able to measure a 2-A current. 2.2.5 COMPUTER A computer with at least one USB port and a USB cable. The bq2415x evaluation software must be properly installed. 2.2.6 HPA172 COMMUNICATION KIT A HPA172 USB to I2C communication kit.

  • Page 5: Equipment Setup

    HPA172 Cable Cable Figure 2. Original Test Setup for HPA255 (bq2415x EVM) (H) Turn on the computer. Open the bq2415x evaluation software. The main window of the software is shown in Figure SLUU366A – March 2010 – Revised April 2010...

  • Page 6: Procedure

    Test Summary www.ti.com Figure 3. Main Window of the bq2415x Evaluation Software Procedure 2.4.1 Charge Voltage and Current Regulation 1. Ensure that Section 2.3 steps are followed. Turn on PS1. 2. Software setup: Click Immediate Update Disabled button. It changes to Immediate Update Enabled.

  • Page 7: Test Setup For Hpa255

    Measure → V(J1(DC+, DC-)) = 5 V ±0.2 V Measure → Iin = 330 mA ±40 mA Measure → Io = 200 mA ±20 mA SLUU366A – March 2010 – Revised April 2010 bq2415x RGY EVM (HPA255) Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...

  • Page 8: Pcb Layout Guideline

    The PGND pins must be connected to the ground plane to return current through the internal low-side FET. bq2415x RGY EVM (HPA255) SLUU366A – March 2010 – Revised April 2010 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...

  • Page 9: Board Layout, Schematic, And Bill Of Materials

    Board Layout, Schematic, and Bill of Materials www.ti.com Board Layout, Schematic, and Bill of Materials Board Layout Figure 5. Top Layer SLUU366A – March 2010 – Revised April 2010 bq2415x RGY EVM (HPA255) Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...

  • Page 10: Bottom Layer

    Board Layout, Schematic, and Bill of Materials www.ti.com Figure 6. Bottom Layer Figure 7. Top Assembly bq2415x RGY EVM (HPA255) SLUU366A – March 2010 – Revised April 2010 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...

  • Page 11: Top Silk

    Board Layout, Schematic, and Bill of Materials www.ti.com Figure 8. Top Silk SLUU366A – March 2010 – Revised April 2010 bq2415x RGY EVM (HPA255) Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...

  • Page 12: Schematic

    Board Layout, Schematic, and Bill of Materials www.ti.com Schematic bq2415x RGY EVM (HPA255) SLUU366A – March 2010 – Revised April 2010 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...

  • Page 13: Bill Of Materials

    2. These assemblies must be clean and free from flux and all contaminants. Use of no clean flux is not acceptable. 3. These assemblies mut comply with workmanship standards IPC-A-610 Class 2. SLUU366A – March 2010 – Revised April 2010 bq2415x RGY EVM (HPA255) Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated...
  • Page 14 Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
  • Page 15 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.

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