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User's Guide SLUU904A–April 2012–Revised February 2015 bq34z100EVM Wide Range I

User's Guide SLUU904A–April 2012–Revised February 2015 bq34z100EVM Wide Range Impedance Track™Enabled Battery Fuel Gauge Solution This evaluation module (EVM) is a complete evaluation system for the bq34z100 wide-range fuel gauge for lithium ion, Nickel metal hydride (NiMH) and Nickel Cadmium (NiCd) chemistries when combined with an EV2300 USB adapter and Microsoft® Windows® based PC software downloadable from the TI.com website. The circuit module includes one bq34z100 integrated circuit (IC) and all other components necessary to monitor and predict capacity in one or more series cell Li-ion, Li-polymer, or LiFePO4 battery packs. The minimum series cell count for PbA, NiMH, and NiCd chemistries must exceed 3.3-V stack voltage. The circuit module connects directly across the battery stack. With the EV2300 interface adapter and software, it is possible to read the bq34z100 data registers, program the chip for different pack configurations, log cycling data for further evaluation, and evaluate the overall functionality of the bq34z100 solution under different charge and discharge conditions. Contents 1 Features....................................................................................................................... 2 1.1 Kit Contents.......................................................................................................... 2 1.2 Ordering Information ............................................................................................... 2 1.3 Documentation ...................................................................................................... 2 1.4 bq34z100 Circuit Module Performance Specification Summary.............................................. 2 2 bq34z100 Quick Start Guide ............................................................................................... 3 2.1 Items Needed for EVM Setup and Evaluation .................................................................. 3 2.2 Software Installation................................................................................................ 3 2.3 EVM Connections................................................................................................... 4 3 Battery Management Studio................................................................................................ 6 3.1 Registers Screen.................................................................................................... 6 3.2 Setting Programmable bq34z100 Options....................................................................... 7 3.3 Calibration Screen.................................................................................................. 8 3.4 Chemistry Screen................................................................................................... 9 3.5 Programming Screen ............................................................................................. 10 3.6 Golden Image Screen ............................................................................................ 11 3.7 Advanced Comm I2C Screen.................................................................................... 12 3.8 Send HDQ Screen ................................................................................................ 14 3.9 Dashboard Panel.................................................................................................. 15 3.10 Commands Panel ................................................................................................. 15 4 Circuit Module Physical Layouts ......................................................................................... 16 4.1 Board Layout....................................................................................................... 16 4.2 Schematic .......................................................................................................... 19 4.3 Bill of Materials .................................................................................................... 20 5 Related Documentation from Texas Instruments ...................................................................... 20 List of Figures 1 bq34z100 Circuit Module Connection to Cells and System Load and Charger ..................................... 4 2 Registers Screen............................................................................................................. 6 3 Data Memory Screen........................................................................................................ 7 4 Calibration Screen........................................................................................................... 8 Impedance Track is a trademark of Texas Instruments. Microsoft, Windows are registered trademarks of Microsoft Corporation. All other trademarks are the property of their respective owners. 1 SLUU904A–April 2012–Revised February 2015 bq34z100EVM Wide Range Impedance Track™Enabled Battery Fuel Gauge Solution Submit Documentation Feedback Copyright © 2012–2015, Texas Instruments Incorporated Features www.ti.com 5 Chemistry Screen............................................................................................................ 9 6 Programming Screen ...................................................................................................... 10 7 Golden Image Screen ..................................................................................................... 11 8 Advanced Comm Screen.................................................................................................. 12 9 Send HDQ Screen ......................................................................................................... 14 10 Top Silk Screen............................................................................................................. 16 11 Top Assembly............................................................................................................... 16 12 Top Layer.................................................................................................................... 17 13 Internal Layer 1............................................................................................................. 17 14 Internal Layer 2............................................................................................................. 18 15 Bottom Layer................................................................................................................ 18 16 bq34z100EVM-003 Schematic ........................................................................................... 19 List of Tables 1 Ordering Information ........................................................................................................ 2 2 Bill of Materials ............................................................................................................. 20 1 Features • Complete evaluation system for the bq34z100 advanced gas gauge with Impedance Track™ technology. • Populated circuit module for quick setup • Link to software allowing data logging for system analysis 1.1 Kit Contents • bq34z100 circuit module • Cable to connect the EVM to an EV2300 or EV2400 Communications Interface Adapter. 1.2 Ordering Information Table 1. Ordering Information EVM Part Number Chemistry Configuration Capacity Li-Ion, Li-Polymer, LiFePO4, PbA, bq34z100EVM 3 V–48 V Any NiMH, NiCd 1.3 Documentation See the device data sheet for bq34z100-G1 (SLUSBZ5) on www.ti.com for information on device firmware and hardware. 1.4 bq34z100 Circuit Module Performance Specification Summary This section summarizes the performance specifications of the bq34z100 circuit module. Specification Min Typ Max Unit Input voltage BAT+ to BAT– in 1S mode 3 4 5 V Input voltage BAT+ to BAT– in MultiCell 6 28 48 V Charge and discharge current 0 2 7 A 2 bq34z100EVM Wide Range Impedance Track™Enabled Battery Fuel Gauge SLUU904A–April 2012–Revised February 2015 Solution Submit Documentation Feedback Copyright © 2012–2015, Texas Instruments Incorporated www.ti.com bq34z100 Quick Start Guide 2 bq34z100 Quick Start Guide This section provides the step-by-step procedures required to take a new EVM and configure it for operation in a laboratory environment. 2.1 Items Needed for EVM Setup and Evaluation • bq34z100 circuit module • EV2300 or EV2400 Communications Interface Adapter • Cable to connect the EVM to an EV2300 or EV2400 Communications Interface Adapter • USB cable to the Communications Interface Adapter to the computer • Computer setup with Windows XP, or higher, operating system • Access to the internet to download the Battery Management Studio software setup program • Battery cells or 1-kΩ resistors to configure a cell simulator • A DC power supply that can supply 50 V and 3 A (Constant current/constant voltage capability is desirable) 2.2 Software Installation Find the latest software version in the bq34z100 tool folder on www.ti.com. Use the following steps to install the bq34z100-G1 Battery Management Studio software: 1. Download and run the Battery Management Studio setup program from the bqStudio product folder on www.ti.com. See Section 3 for detailed information on using the tools in the Battery Management Studio. 2. If the Communications Interface Adapter was not previously installed, after the Battery Management Studio installation, a TI USB driver installer pops up. Click “Yes” for the agreement message and follow the instructions. Two drivers are associated with the EV2300 and an additional file may be required for the EV2400. Follow the instructions to install both. Do not reboot the computer, even if asked to do so. 3. Plug the Communications Interface Adapter into a USB port using the USB cable. The Windows system may show a prompt that new hardware has been found. When asked, "Can Windows connect to Windows Update to search for software?", select "No, not this time", and click "Next". In the next dialog window, it indicates "This wizard helps you install software for: TI USB Firmware Updater". Select "Install the software automatically (Recommended)" and click "Next". It is common for the next screen to be the Confirm File Replace screen. Click "No" to continue. If this screen does not appear, then go to the next step. After Windows indicates that the installation was finished, a similar dialog window pops up to install the second driver. Proceed with the same installation preference as the first one. The second driver is the TI USB bq80xx Driver. 3 SLUU904A–April 2012–Revised February 2015 bq34z100EVM Wide Range Impedance Track™Enabled Battery Fuel Gauge Solution Submit Documentation Feedback Copyright © 2012–2015, Texas Instruments Incorporated bq34z100 Quick Start Guide www.ti.com 2.3 EVM Connections This section covers the hardware connections for the EVM (see Figure 1). Figure 1. bq34z100 Circuit Module Connection to Cells and System Load and Charger • Direct connection to the cells: BAT–, BAT+ The bq34z100 monitors the cell stack voltage. Connect the bottom of the stack to BAT– and the top of the stack to BAT+. The stack voltage can range from 3 V to 48 V (see Figure 1). STACK VOLTAGE J5 HEADER J2 HEADER Less than 5 V < 5-V jumpers N/A Greater than 5 V > 5-V jumpers 16 V, 32 V or 48 V WARNING Applying a voltage greater than 5 V when jumpers are configured to < 5-V operation will damage the IC. Do not apply power until you have completed the EVM Connections section. • To the serial communications port (SCL, SDA) Attach the Communications Interface Adapter cable to the J7 terminal block and to an EV2300 or EV2400 adapter box. Connect the PC USB cable to the EV2300 or EV2400 and the PC USB port (see Figure 1). • The charger and system load connection across BAT+ and PACK– Attach the charger or load to the TB3 terminal block. Connect the positive load wire to BAT+ and the ground wire for the load to PACK– (see Figure 1). • The ALERT output The ALERT output is an active low interrupt. The ALERT Configuration register selects the Control Status bits that will activate the interrupt. The ALERT pin is an open drain output and a pull-up resistor must be attached to the TB1 to use the feature. 4 bq34z100EVM Wide Range Impedance Track™Enabled Battery Fuel Gauge SLUU904A–April 2012–Revised February 2015 Solution Submit Documentation Feedback Copyright © 2012–2015, Texas Instruments Incorporated www.ti.com bq34z100 Quick Start Guide • The LED Configuration When configuring the data flash registers, choose one of five LED/Comm configuration codes (refer to Table 21 in the bq34z100-G1 datasheet SLUSBZ5). After reviewing those possibilities, select the jumper pattern desired for the J6 header on the EVM. For single LED mode, place a jumper on the pair marked A. For four direct LED mode, place jumpers on A, B, C, and D. (Note: This configuration is only available when using HDQ communications mode.) For external LEDs using the shift register option, place a single jumper on EXT. In all cases, where one or more LED’s are used, place a jumper across the J1 header to provide power to the LED (see Figure 1). • Parameter setup The default data flash settings configure the device for 1-series Li-Ion cell. The user must update the data to set up the number of series cells to match the physical pack configuration (see Cell Configuration in Section 3.2). This uploads/Management/ user-guide 52 .pdf