Texas Instruments bq76200 User Manual
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Texas Instruments bq76200 User Manual

Texas Instruments bq76200 User Manual

High voltage battery pack front-end charge/discharge high-side nfet driver evaluation module
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bq76200 High Voltage Battery Pack Front-End
Charge/Discharge High-Side NFET Driver Evaluation
This evaluation module (EVM) is a complete evaluation system for the bq76200 High Voltage Battery
Pack Front-End Charge/Discharge High-Side NFET Driver. The EVM includes one bq76200 and FETs to
control current in a configuration typical for switching current in a lithium-ion battery pack. The circuit
module includes one bq76200 integrated circuit (IC), two CSD19351Q5A FETs, and all other onboard
components necessary to switch charge, discharge, and precharge current and to monitor the output pack
voltage. The circuit module connects between a "battery" source and a "pack" load. With the on-board
jumpers or external control, the user can switch the FETs to evaluate the overall functionality of the
solution under different charge and discharge conditions.
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Copyright © 2015, Texas Instruments Incorporated
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User's Guide
SLVU926 - July 2015
Module
NFET Driver Evaluation Module
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Summary of Contents for Texas Instruments bq76200

  • Page 1: Table Of Contents

    Charge/Discharge High-Side NFET Driver Evaluation Module This evaluation module (EVM) is a complete evaluation system for the bq76200 High Voltage Battery Pack Front-End Charge/Discharge High-Side NFET Driver. The EVM includes one bq76200 and FETs to control current in a configuration typical for switching current in a lithium-ion battery pack. The circuit...
  • Page 2 ....................bq76200EVM Schematic List of Tables ..................Performance Specification Summary ................... bq76200EVM Bill of Materials bq76200 High Voltage Battery Pack Front-End Charge/Discharge High-Side SLVU926 – July 2015 NFET Driver Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 3: Slvu926 - July 2015 Bq76200 High Voltage Battery Pack Front-End Charge/Discharge High-Side

    Any other use and/or application are strictly prohibited by Texas Instruments. If you are not suitably qualified, you should immediately stop from further use of the HV EVM.

  • Page 4: Features

    Warning Hot surface. Contact may cause burns. Do not touch. Caution Do not leave EVM powered when unattended. Danger High The bq76200 EVM does not have an isolation boundary. If you apply high Voltage voltage to this board, all terminals should be considered high voltage. spacer Electric shock is possible when connecting the board to live wire.

  • Page 5: Items Needed For Evm Quick Start Evaluation

    Figure DC Power Supply ³EDWWHU\´ Rload Figure 1. bq76200 Circuit Module Connection for Simple Demonstration • Supply terminals (BATT+, BATSR–) These are the supply terminals for the board. BATT+ is the positive terminal of the battery or supply, SLVU926 – July 2015...

  • Page 6: Quick Start Sequence

    J7 allows enabling the bq76200 control signals from the on-board zener regulator voltage using shunts. See the bq76200 data sheet for the description of the control signals. The divided pack voltage can also be accessed here as the PDIV signal. When the shunts are not used, the header may be used for connection to other equipment.

  • Page 7: Additional Evaluation Setups

    RU³ORDG´ Figure 2. Bipolar Operation Connecting to a BMS System The bq76200 EVM may be connected to a BMS board so that the BMS device can provide the control signals for the bq76200, a concept is shown in Figure 3. The J7 header or J8 terminal block may be useful to connect signals to the bq76200 EVM, refer to the documentation for the BMS board to determine where to connect and how to interface the signals.

  • Page 8: Connecting To A Mcu

    Troubleshooting If the bq76200 does not appear to be operating, check the BATT+ and enable voltages. BATT+ must be in the range of the board and the BAT test point in the range of the IC as shown in the data sheet. Check that the board ground is appropriately connected to the system supply ground.

  • Page 9: Bq76200Evm Circuit Module Schematic

    D2 is a pattern for a TVS on the pack, if desired. Input Limit Circuit The bq76200 EVM contains zener diodes and resistors on the inputs. These may limit the voltage to the control input pins if multiple pins on the IC are shorted together and the ground connection is maintained, but do not provide a safety isolation boundary.

  • Page 10: Circuit Module Physical Layouts

    Circuit Module Physical Layouts This section contains the printed-circuit board (PCB) layout, assembly drawings, and schematic for the bq76200 circuit module. Board Layout This section shows the PCB layers and assembly drawing for the bq76200 module (see Figure 5 through Figure 12).

  • Page 11: Top Assembly

    Circuit Module Physical Layouts www.ti.com Figure 7. Top Assembly Figure 8. Bottom Assembly SLVU926 – July 2015 bq76200 High Voltage Battery Pack Front-End Charge/Discharge High-Side NFET Driver Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 12: Top Layer

    Circuit Module Physical Layouts www.ti.com Figure 9. Top Layer Figure 10. Internal Layer 1 bq76200 High Voltage Battery Pack Front-End Charge/Discharge High-Side SLVU926 – July 2015 NFET Driver Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 13: Internal Layer

    Circuit Module Physical Layouts www.ti.com Figure 11. Internal Layer 2 Figure 12. Bottom Layer SLVU926 – July 2015 bq76200 High Voltage Battery Pack Front-End Charge/Discharge High-Side NFET Driver Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 14: Schematic

    10.0Meg 10.0Meg 10.0Meg 10.0Meg 11.3k 25 ppm/C TP14 TP15 TP16 TP17 Figure 13. bq76200EVM Schematic bq76200 High Voltage Battery Pack Front-End Charge/Discharge High-Side SLVU926 – July 2015 NFET Driver Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 15: Bill Of Materials

    SH-J7 Unless otherwise noted in the Alternate Part Number and/or Alternate Manufacturer columns, all parts may be substituted with equivalents. SLVU926 – July 2015 bq76200 High Voltage Battery Pack Front-End Charge/Discharge High-Side NFET Driver Evaluation Module Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated...

  • Page 16: Related Documentation From Texas Instruments

    CRCW060310M0FKEA Vishay-Dale R34, R35 Related Documentation from Texas Instruments • bq76200, High Voltage Battery Pack Front-End Charge/Discharge High-Side NFET Driver data sheet, SLUSC16 bq76200 High Voltage Battery Pack Front-End Charge/Discharge High-Side SLVU926 – July 2015 NFET Driver Evaluation Module Submit Documentation Feedback...
  • Page 17 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 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 【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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