User's Guide
SLUU356A – February 2009 – Revised October 2013
bq27505EVM System-Side, Single-Cell Impedance Track™
Technology Evaluation Module
This evaluation module (EVM) is a complete evaluation system for the bq27505. The EVM includes one
bq27505 circuit module, a current sense resistor, one thermistor, and Windows®-based PC software. An
EV2300 PC interface board for gas gauge interface is required to interface this EVM with the PC and can
be purchased separately. The circuit module includes one bq27505 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 interface board and software, the user
can read the bq27505 data registers, program the chipset for different pack configurations, log cycling
data for further evaluation, and evaluate the overall functionality of the bq27505 solution under different
charge and discharge conditions.
1
2
3
4
5
6
7
8
9
10
11
12
Contents
Features ...................................................................................................................... 2
bq27505-Based Circuit Module ........................................................................................... 2
bq27505 Circuit Module Schematic ...................................................................................... 3
Circuit Module Physical Layouts and Bill of Materials .................................................................. 3
EVM Hardware and Software Setup ..................................................................................... 7
Troubleshooting Unexpected Dialog Boxes ............................................................................. 7
Hardware Connection ...................................................................................................... 7
Operation ..................................................................................................................... 8
Calibrate Screen ........................................................................................................... 11
I2C Pro Screen ............................................................................................................ 13
bqEASY™ Software ....................................................................................................... 13
Related Documentation from Texas Instruments ..................................................................... 17
List of Figures
1
bq27505EVM-001 Layout – Silk Screen .................................................................................
3
2
Top Assembly ...............................................................................................................
4
3
Top Layer ....................................................................................................................
4
4
Bottom Layer
5
6
7
8
9
10
11
12
13
................................................................................................................
Schematic ....................................................................................................................
bq27505 Circuit Module Connection to Cell and System Load/Charger ............................................
DataRAM Screen ...........................................................................................................
Data Flash Screen ........................................................................................................
Calibration Screen .........................................................................................................
I2C Pro Screen ............................................................................................................
bqEASY Welcome Screen ...............................................................................................
bqEASY Flowchart ........................................................................................................
Load and Switch ..........................................................................................................
5
6
8
9
10
12
12
13
14
17
List of Tables
1
Ordering Information ........................................................................................................
2
2
Bill of Materials ..............................................................................................................
5
Impedance Track, bqEASY are trademarks of Texas Instruments.
Windows, Microsoft are registered trademarks of Microsoft Corporation.
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1
Features
1
3
Performance Specification Summary.....................................................................................
7
4
Circuit Module to EV2300 Connections ..................................................................................
8
Features
•
•
•
•
1.1
www.ti.com
Complete evaluation system for the bq27505 gas gauge with Impedance Track™ technology
Populated circuit module for quick setup
Personal computer (PC) software and interface board for easy evaluation
Software that allows data logging for system analysis
Kit Contents
•
•
•
bq27505 circuit module (HPA386)
NTC103AT thermistor
Set of support documentation
This EVM is used for the evaluation of different bq27505-based products. Ensure that you visit the product
Web folder at www.ti.com to download the latest firmware version for the associated product to be
evaluated.
1.2
Ordering Information
Table 1. Ordering Information
2
EVM PART NUMBER
CHEMISTRY
CONFIGURATION
CAPACITY
bq27505EVM
Li-ion
1 cell
Any
bq27505-Based Circuit Module
The bq27505-based circuit module is a complete and compact example solution of a bq27505 circuit for
battery management. The circuit module incorporates a bq27505 battery gas gauge integrated circuit (IC)
and all other components necessary to accurately predict the capacity of 1-series Li-ion cell.
2.1
Circuit Module Connections
Contacts on the circuit module provide the following connections:
• Direct connection to the battery pack (J2 or J3): PACK+, PACK-, and TS
• To the serial communications port (J8): SDA, SCL, and VSS
• The system load and charger connect across charger and load (J6 and J7): CHARGER-/LOAD- and
CHARGER+/LOAD+
• Access to signal outputs (J6): SOC_INT, BAT_GD and BAT_LOW
• Optional 2.5V input if powering IC from actual system power (J1): 2.5V INPUT and VSS
2.2
Pin Descriptions
PIN NAME
PACK+
PACKT
SDA
SCL
VSS
CHG+/LOAD+
2
DESCRIPTION
Pack positive terminal
Pack negative terminal
Pack thermistor input that leads to IC TS pin
I2C communication data line
I2C communication clock line
Signal return for communication line, shared with charger and ground
High potential of load or charger connection
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bq27505 Circuit Module Schematic
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PIN NAME
CHG-/LOAD–
BAT_GD
BAT_LOW
SOC_INT
DESCRIPTION
Low potential of load or charger connection (system VSS)
Access to push-pull output that indicates that pack is ready to be connected to system
Access to push-pull output that signals low State-of-charge
Access to open drain output that signals interrupt for changes in SOC
3
bq27505 Circuit Module Schematic
3.1
Schematic
The schematic follows the bill of materials in this user's guide.
4
Circuit Module Physical Layouts and Bill of Materials
This section contains the board layout, bill of materials, and assembly drawings for the bq27505 circuit
module.
4.1
Board Layout
This section shows the PCB layers (Figure 1 through Figure 4), and assembly drawing for the bq27505
module.
Figure 1. bq27505EVM-001 Layout – Silk Screen
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Figure 2. Top Assembly
Figure 3. Top Layer
4
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Figure 4. Bottom Layer
4.2
Bill of Materials and Schematic
Table 2. Bill of Materials
Count
Ref Des
Description
Size
MFG
Part No.
6
C1, C2, C5, C6, C7,
C8
Capacitor, Ceramic, 0.1uF, 10V, X5R
402
Murata
GRM155R61A104KA01D
1
C3
Capacitor, Ceramic, 33nF, 10V, X7R
402
Murata
GRM155R71A333KA01D
1
C4
Capacitor, Ceramic, 0.47uF, 6.3V, X5R
402
Murata
GRM155R60J474KE19D
1
D1
Diode, Dual, Zener, 5.6 V, 300mW
SOT23
Diodes
AZ23C5V6-7
3
J1, J6, J7
Terminal Block, 2-pin, 6-A, 3.5mm
0.27 x 0.25 inch
OST
ED555/2DS
2
J2, J5
Terminal Block, 4-pin, 6-A, 3.5mm
0.55 x 0.25 inch
OST
ED555/4DS
2
J3, J8
Header, Friction Lock Ass'y, 4-pin Right Angle
0.400 x 0.500
Molex
22-05-3041
1
J4
Header, Male 3-pin, 100mil spacing, (36-pin
strip)
0.100 inch x 3
Sullins
PEC36SAAN
1
R1
Resistor, Chip, 1.80-MOhms, 1/16-W, 5%
402
Std
Std
1
R10
Resistor, Chip, 0.01-Ohms, 0.25W, 1%
1206
Vishay
WSL1206R0100FEA
2
R11, R12
Resistor, Chip, 10k-Ohms, 1/16-W, 5%
402
Std
Std
1
R2
Resistor, Chip, 18.2-kOhms, 1/16-W, 5%
402
Std
Std
1
R3
Resistor, Chip, 1-kOhms, 1/16-W, 5%
402
Std
Std
6
R4, R5, R6, R7, R8,
R9
Resistor, Chip, 100-Ohms, 1/16-W, 5%
402
Std
Std
2
TP1, TP3
Test Point, Red, Thru Hole Color Keyed
0.100 x 0.100
inch
Keystone
5000
1
TP2
Test Point, Black, Thru Hole Color Keyed
0.100 x 0.100
inch
Keystone
5001
1
TP4
Test Point, White, Thru Hole Color Keyed
0.100 x 0.100
inch
Keystone
5002
1
U1
IC, High Input Voltage, 3.2uA @ 50mA LDO,
2.5V
SOP-5 (DCK)
Texas
Instruments
TPS71525DCKR
1
U2
IC, System-Side Impedance-Track Fuel Gauge
BGA
Texas
Instruments
BQ27505YZG
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Circuit Module Physical Layouts and Bill of Materials
www.ti.com
Figure 5. Schematic
6
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EVM Hardware and Software Setup
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4.3
bq27505 Circuit Module Performance Specification Summary
This section summarizes the performance specifications of the bq27505 circuit module.
Table 3. Performance Specification Summary
Specification
5
Min
Typ
Max
Units
Input voltage Pack+ to Pack–
2.7
3.6
4.3
V
Charge and discharge current
0
1
2
A
EVM Hardware and Software Setup
This section describes how to install the bq27505EVM PC software and how to connect the different
components of the EVM.
5.1
System Requirements
The bq27505EVSW software requires Windows 2000 or Windows XP. Drivers for Windows 98SE are
provided, but Microsoft® no longer supports Windows 98; therefore, Windows 98 can have issues with
USB driver support. The EV2300 USB drivers have been tested for Windows 98SE, but no assurance is
made for problem-free operation with specific system configurations.
5.2
Software Installation
Find the latest software version in the bq27505 tool folder on power.ti.com. Make a search by Part
Number for bq27505 to access the tool folder. Use the following steps to install the bq27505EVSW
software:
1. Ensure that the EV2300 is not connected to the personal computer (PC) through the USB cable before
starting this procedure.
2. Open the archive containing the installation package, and copy its contents into a temporary directory.
3. Open the software file that was downloaded from the TI Web site.
4. Follow the instructions on screen until completing the software installation.
5. Before starting the evaluation software, connect the EV2300 to the computer using the USB cable.
6. Wait until system prompt “new hardware found” appears. Choose “select location manually”, and use
the “browse” button to point to subdirectory TIUSBWin2K-XP-1.
7. Answer “continue” to the warning that drivers are not certified with Microsoft.
8. After installation finishes, another system prompt "new hardware found" appears. Repeat steps 1
through 5, but specify the directory as TIUSBWin2K-XP-2.
9. Answer "continue" to the warning that drivers are not certified with Microsoft. Driver installation is now
finished.
6
Troubleshooting Unexpected Dialog Boxes
The user that 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 policy.
7
Hardware Connection
The bq27505EVM-001 comprises three hardware components: the bq27505 circuit module, the EV2300
PC interface board (purchased separately), and the PC.
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Operation
7.1
www.ti.com
Connecting the bq27505 Circuit Module to a Battery Pack
Figure 6 shows how to connect the bq27505 circuit module to the cells and system load/charger.
Figure 6. bq27505 Circuit Module Connection to Cell and System Load/Charger
7.2
PC Interface Connection
The following steps configure the hardware for interface to the PC.
1. Connect the bq27505-based EVM to the EV2300 using wire leads as shown in Table 4.
Table 4. Circuit Module to EV2300 Connections
bq27505-Based Battery
EV2300
SDA
SDA
SCL
SCL
VSS
GND
2. Connect the PC USB cable to the EV2300 and the PC USB port.
The bq27505EVM-001 is now set up for operation.
8
Operation
This section details the operation of the bq27505 EVSW software.
8.1
Starting the Program
Run bq27505 EVSW from the Start | Programs | Texas Instruments | bq Evaluation Software menu
sequence. The DataRAM screen (Figure 7) appears. Data begins to appear once the (single
time scan) button is clicked, or when the check box is checked. To disable the scan
feature, deselect .
The continuous scanning period can be set via the | Options | and | Set Scan Interval | menu selections.
The range for this interval is 0 ms to 65,535 ms. Only items that are selected for scanning are scanned
within this period.
The bq27505 EVSW provides a logging function which logs the values that were last scanned by EVSW.
To enable this function, select the Start Logging button; this causes the Keep Scanning button to be
selected. When logging is Stopped, the keep scanning button is still selected and has to be manually
unchecked.
8
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Operation
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The logging intervals are specified under the | Options | menu with the maximum value of 65,535 ms. The
Log interval cannot be smaller than the scan interval because this results in the same value being logged
at least twice.
Figure 7. DataRAM Screen
This screen (Figure 7) shows the RAM data set. Additional Flag and Status data can be viewed at the
bottom of the DataRAM screen.
Dragging the splitter bar (line that separates the Flags/Status data from Data Ram register values)
changes the height of the Flags/Status Data display. Selecting | View |, then | Auto Arrange | returns the
splitter bar to its original location.
8.2
Setting Programmable bq27505 Options
The bq27505 data flash comes configured per the default settings detailed in the bq27505 data sheet.
Ensure that the settings are correctly changed to match the pack and application for the bq27505 solution
being evaluated.
IMPORTANT: The correct setting of these options is essential to get the best performance.
The settings can be configured using the Data Flash screen (Figure 8).
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Operation
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Figure 8. Data Flash Screen
To read all the data from the bq27505 data flash, click on menu option | Data Flash | Read All |.
To write to a data flash location, click on the desired location, enter the data and press , which
writes the entire tab of flash data, or select menu option | Data Flash | Write All |. The data flash must be
read before any writes are performed to avoid any incorrect data being written to the device.
The | File | Special Export | menu options allows the data flash to be exported, but it configures the
exported data flash to a learned state ready for mass production use.
The data-flash configuration can be saved to a file by selecting | File | Export | and entering a file name. A
data-flash file also can be retrieved in this way, imported, and written to the bq27505 using the | Write All |
button.
The module calibration data is also held in the bq27505 data flash.
The bq27505 allows for an automatic data-flash export function, similar to the DataRAM logging function.
This feature, when selected via | Options | Auto Export |, exports Data Flash to a sequential series of files
named as FilenameNNNNN.gg where N = a decimal number from 0 to 9.
The AutoExport interval is set under the | Options menu | with a minimum value of 15 s. The AutoExport
filename is also set under the | Options menu |.
When a check is next to | AutoExport |, the AutoExport is in progress. The same menu selection is used to
turn on/off AutoExport.
If the Data Flash screen is blank, then the bq27505 that is being used may not be supported by the
bqEVSW version that is being used. An upgrade may be required.
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Calibrate Screen
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9
Calibrate Screen
To ensure proper calibration, perform the following steps. These steps may or may not be required,
depending on the type of calibration being performed.
9.1
To Calibrate the bq27505
Select the types of calibration to be performed (see Figure 9).
Enter the measured values for the types selected.
If Temperature Calibration is selected, then select the sensor that is to be calibrated.
Press the Calibrate Part as indicated below button.
9.2
CC Offset Calibration
This performs the internal calibration of the coulomb counter input offset.
9.3
Board Offset Calibration
This performs the offset calibration for the current offset of the board.
It is expected that no current is flowing through the sense resistor while performing this calibration step.
Remove load and short PACK– to LOAD–.
Press the CC Board Offset Calibration button.
9.4
Voltage Calibration
•
•
•
9.5
Temperature Calibration
•
•
•
•
9.6
Measure the voltage across Pack+ and Pack-.
Type the voltage value in mV into Enter Actual Voltage .
Press the Calibrate Part as indicated below button.
Measure the temperature for PACK.
Type the temperature value into Enter Actual Temperature.
Select if the temperature sensor to calibrate is the internal or external.
Press the Calibrate Part as indicated below button.
Pack Current Calibration
•
•
•
Connect a load to LOAD– and LOAD+ that draws approximately 1 A, or connect a current source to
LOAD– and Pack-.
Measure the current and type value into Enter Actual Current using (-) for current in discharge
direction.
Press the Calibrate Part as indicated below button.
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Calibrate Screen
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Figure 9. Calibration Screen
Figure 10. I2C Pro Screen
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I2C Pro Screen
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10
I2C Pro Screen
10.1 I 2C Communication
The read/write operations of the I2C Pro function is not specific to any gas gauge. These operations serve
as general-purpose communication tools (Figure 10).
11
bqEASY™ Software
11.1 Introduction
Texas Instruments fuel gauges, employing the Impedance Track algorithm offer an unmatched array of
features and benefits. Sometimes, however, the wide range of configuration settings can seem
challenging to get started with the evaluation process. In addition, determining the correct chemistry model
and producing the 'golden image' file can be time consuming. The bqEASY program is designed to greatly
simplify the process of configuring, calibrating, selecting chemistry, and performing learning cycles through
the step-by-step use of a wizard program.
The bqEASY software runs inside the current EV software when it is executed by clicking the bqEASY
button in the left column of buttons below the Calibrate button in the EV software.
Figure 11. bqEASY Welcome Screen
11.2 Program Navigation and Flowchart
The sequence of operation of the bqEASY program can be understood by reviewing the basic flowchart in
Figure 12 . Using the program is simple – just start a new project and follow the steps sequentially from
1A to 5C. You can use the Next button, or click on the top tabs and left subsection labels to move to any
desired page. Some operations must be completed in sequence due to data dependencies, or to
implement the proper flow. Therefore, it is recommended that the prescribed sequence be followed, at
least at first.
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bqEASY™ Software
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(1A) Open Project
(4B) Display available chemistry files
(1B) Write default .DFI file to
gauge (or keep existing image)
(4A) Is the cell
chemistry
identifiable
from the list?
(2A~2H) Configure gauge from
wizard questions
No
(4C) Do chemistry selection cycle
to log elapsed time, voltage,
temperature and current
(3A~3F) Calibrate gauge
Yes
(3F) Read/save configured flash
from gauge to .DFI binary file
(4A) Are the
cell based on
standard Li-Ion
chemistry?
(4C) Write previously saved
configured .DFI file to gauge
(4C) Programmatically select best
chemistry match
No
(4C) Write selected chemistry
model to gauge
Yes
(4C) Read/save configured flash
from gauge to .DFI binary file
(5A) Enable Impedance Track
algorithm
(5A~5B) Perform learning cycles
(5C) Write previously saved .DFI
binary file to the gauge to insure
no cycling corruption
(5C) Write Ra Table, Qmax, Cycle
Count and Update Status to gauge
(5C) Reset Gauge
(5C) Read flash, save golden .DFI
file
Figure 12. bqEASY Flowchart
11.3 Simplified Configuration Procedures
These simplified configuration procedures can be used to quickly set up the parameters without navigating
through the entire user interface.
1. Simple configuration of the gas gauge with default or custom data:
(a) Open the current EV software, and click the bqEASY button in the left column of buttons below the
"Calibrate" button in the EV software.
(b) Click the "2. Configure" tab at the top row of bqEASY tabs. (Note: You can skip the first tab.)
(c) Answer all questions, or leave defaults for all of tab "2", but be sure to click the "OK" button at the
14
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bottom of each tab "2" page to ensure that a Completion Checkmark appears for each page.
(d) On page 2H, when you click the "OK" button, the software asks you to write to the data-flash
memory. Click "Yes" for OK to write to the data flash.
Your Gas Gauge Module now has the data flash configured as you declared with all the information
entered in tab "2. Configure".
2. Simple installation of the Chemistry data using bqEASY software, if the chemistry is a known chemistry
available in the bqEASY software:
(a) Open the current EV software, and click the bqEASY button in the left column of buttons below the
"Calibrate" button in the EV software.
(b) Click the "4. Chemistry" tab at the top row of bqEASY tabs. (Note: You can skip all tabs prior to
this.)
(c) Either select "Use Default Chemistry", or click "Enable Chemistry Selection," and select the correct
chemistry from the list.
(d) If you cannot find the proper chemistry, check the device EVM tool folder on the TI Web site for any
new bqChemistry file updates. These are updated more frequently than the EV software., Between
EV software updates, TI creates a self-extracting installer and posts it in the EVM tool folder for the
part being used. Install these updates if they are in the folder.
The software now configures all data-flash locations on Your Gas Gauge Module that deal with
chemistry functions. No other data-flash locations are modified.
11.4 Files
The bqEASY software uses four types of files to configure a fuel gauge.
1. .ENCR – These are default data-flash definition files found in the \bq_Evaluation_Software folder. The
.ENCR file is basically a copy of the entire data flash from a fresh gas gauge prior to any data-flash
updates either by the user or the gas gauge. They are unique for each version of each TI fuel gauge
product. If you are working with a new version fuel gauge and an older version of bqEASY software,
the correct file may not be present. This requires a new version of the EV software with bqEASY
software. Navigate to the TI Web site in the EVM tool folder for the device being used, and download
the latest version, or contact TI. For the bqEASY program, the .ENCR files act mainly as a dictionary to
look up the address for a given data-flash location. For bqEVSW, they define screen parameters
including address, display formulas, and data type. An error message appears if the correct .ENCR file
cannot be found.
2. .CHEM (Chemistry Files) – These are read-only files found in
the ..\bq_Evaluation_Software\Plugins\Chemistry folder of the application. When a new Li-Ion battery
chemistry is developed, a new Impedance Track model is required to define the chemical model.
During automated chemistry selection, each of these files is scanned in order to select the best match
with the recorded data. If you are working with a newly developed chemistry, it is possible that an
acceptable match may not be found. If this is the case, check for updated bqEASY software or
bqChemistry files on the TI Web site in the EVM tool folder for the part being used.
3. .DFI (Data-Flash Image Files) – These are binary images of the fuel gauge data flash with modified
values based on the application. Because of the binary format, it is quick and easy to transfer them to
and from a gauge. Each fuel gauge model and firmware version has a unique read-only .DFI which is
found in the ..\bq_Evaluation_Software\Plugins\Device_Defaults folder of the application. During the
bqEASY process, intermediate versions of .DFI files are recorded with current updated data in order to
prevent the possibility of corruption. Then, the final output of bqEASY is also a .DFI file which is the
'golden image' that is programmed into each production unit. This output file is placed in
the ..\bq_Evaluation _Software\Plugins\Projects folder.
4. .EZY (bqEASY Project Files) – These are read-write text files which record header information
regarding a project, answers to the wizard questions, and status regarding the stage of completion (the
red check marks). They are kept in the ..\bq_Evaluation _Software\Plugins\Projects folder.
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bqEASY™ Software
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11.5 Completion Checkmarks
As the wizard questions and tasks are completed, completion checkmarks appear in two places – along
the task list on the left and on the category tabs on top. A checkmark on a top tab only appears after all
tasks in the category have been completed. For example, in Figure 8 all of the Setup tasks and all of the
Configure tasks have been completed. Completion marks are saved in the .EZY project text file. When a
completed or partially completed project file is opened, the user is given the chance to erase the
checkmarks.
11.6 Device Detection
The bqEASY program is designed to work with a fuel gauge present and already communicating with the
bqEVSW evaluation software through the EV2300 USB interface. When the evaluation software is started,
it reads the device type and displays it on the upper title block. This information is used by the bqEASY
program to select the correct default data-flash image (.DFI) and data-flash configuration file (.ENCR) for
this particular device. To ensure that the device has not changed, bqEASY also checks the device type
when the bqEASY button is pressed. If the correct files are not found, first check the TI Web site in the
EVM tool folder for the part being used, and download the latest version of EV software with bqEASY
support. If that fails to help, contact TI.
1. Setup
As the wizard questions and tasks are completed, completion checkmarks appear in two places –
along the task list on the left and on the category tabs on top. A checkmark on a top tab only appears
after all tasks in the category have been completed. Completion marks are saved in the .EZY project
text file. When a completed or partially-completed project file is opened, the user is given the chance to
erase the checkmarks.
2. Configure
A series of eight screens is used to collect information about the battery pack application to enable
automatic configuration of the most critical data-flash parameters.
3. Calibrate
If you wish to proceed with either automatic chemistry selection or golden unit learning cycles, the
Impedance Track fuel gauge must be accurately calibrated. The bqEASY screens simply ask the user
to use the calibration screen of the bqEVSW for this purpose.
4. Chemistry
The chemistry choices presented in section 4B are based on files in the \Chemistry folder of the
bqEASY application. The latest files are available for downloading from the www.ti.com Web site.
Automation of the chemistry-selection cycle is made possible using a simple load and switch as
depicted in Figure 13. The VOUT pin of the EV2300 may require a 1-MΩ pulldown resistor to ensure
that switch is turned off when signaled to do so. The switch can be implemented with either a low
VGS-threshold FET or a small relay such as the OMICRON G6RN-1 with a 5-Vdc coil. Multiple
2N7000 FETs can be paralleled if nothing else is available. The load can be either a power resistor or
an electronic load set to a discharge rate of C/5. Hint: Follow the instructions exactly, or errors can
result.
5. Cycle
When preparing for mass production, cell learning is required, but only on one golden pack. The
chemical information learned from one pack is quickly transferred to all production units prior to
calibration. Doing this correctly requires a series of charge and discharge cycles. The discharge part
can be automated with the bqEASY program if the simple load circuit for the chemistry selection is
available. Follow the screen instructions.
16
bq27505EVM System-Side, Single-Cell Impedance Track™ Technology
Evaluation Module
SLUU356A – February 2009 – Revised October 2013
Submit Documentation Feedback
Copyright © 2009–2013, Texas Instruments Incorporated
Related Documentation from Texas Instruments
www.ti.com
Figure 13. Load and Switch
12
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 can also be obtained through
the TI Web site at www.ti.com.
• bq27505, System-Side Impedance Track™ Fuel Gauge With Direct Battery Connection data sheet
(SLUS884)
• bq27505-J2, System-Side Impedance Track™ Fuel Gauge With Direct Battery Connection data sheet
(SLUS924)
SLUU356A – February 2009 – Revised October 2013
Submit Documentation Feedback
bq27505EVM System-Side, Single-Cell Impedance Track™ Technology
Evaluation Module
Copyright © 2009–2013, Texas Instruments Incorporated
17
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS
Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions:
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims
arising from the handling or use of the goods.
Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from
the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO
BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH
ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES.
Please read the User's Guide and, specifically, the Warnings and Restrictions notice in the User's Guide prior to handling the product. This
notice contains important safety information about temperatures and voltages. For additional information on TI's environmental and/or safety
programs, please visit www.ti.com/esh or contact TI.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or
combination in which such TI products or services might be or are used. TI currently deals with a variety of customers for products, and
therefore our arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design,
software performance, or infringement of patents or services described herein.
REGULATORY COMPLIANCE INFORMATION
As noted in the EVM User’s Guide and/or EVM itself, this EVM and/or accompanying hardware may or may not be subject to the Federal
Communications Commission (FCC) and Industry Canada (IC) rules.
For EVMs not subject to the above rules, this evaluation board/kit/module 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. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing
devices pursuant to part 15 of FCC or ICES-003 rules, which are designed to provide reasonable protection against radio frequency
interference. Operation of the equipment may cause interference with radio communications, in which case the user at his own expense will
be required to take whatever measures may be required to correct this interference.
General Statement for EVMs including a radio
User Power/Frequency Use Obligations: This radio is intended for development/professional use only in legally allocated frequency and
power limits. Any use of radio frequencies and/or power availability of this EVM and its development application(s) must comply with local
laws governing radio spectrum allocation and power limits for this evaluation module. It is the user’s sole responsibility to only operate this
radio in legally acceptable frequency space and within legally mandated power limitations. Any exceptions to this are strictly prohibited and
unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory
authorities, which is responsibility of user including its acceptable authorization.
For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant
Caution
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the
equipment.
FCC Interference Statement for Class A EVM devices
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the interference at his own expense.
FCC Interference Statement for Class B EVM devices
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. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
For EVMs annotated as IC – INDUSTRY CANADA Compliant
This Class A or B digital apparatus complies with Canadian ICES-003.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the
equipment.
Concerning EVMs including radio transmitters
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this
device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired
operation of the device.
Concerning EVMs including detachable antennas
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain
approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should
be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.
This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum
permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain
greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.
Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada.
Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont pu vider l’autorité de
l'utilisateur pour actionner l'équipement.
Concernant les EVMs avec appareils radio
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est
autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout
brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Concernant les EVMs avec antennes détachables
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain
maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à
l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente
(p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.
Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel
d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans
cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.
SPACER
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【Important Notice for Users of EVMs for RF Products in Japan】
】
This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan
If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product:
1.
2.
3.
Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and
Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of
Japan,
Use this product only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this
product, or
Use of this product only after you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with
respect to this product. Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note
that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan.
Texas Instruments Japan Limited
(address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan
http://www.tij.co.jp
【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.
2.
3.
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。
実験局の免許を取得後ご使用いただく。
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
http://www.tij.co.jp
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EVALUATION BOARD/KIT/MODULE (EVM)
WARNINGS, RESTRICTIONS AND DISCLAIMERS
For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished
electrical equipment and not intended for consumer use. It is intended solely for use for preliminary feasibility evaluation in
laboratory/development environments by technically qualified electronics experts who are familiar with the dangers and application risks
associated with handling electrical mechanical components, systems and subsystems. It should not be used as all or part of a finished end
product.
Your Sole Responsibility and Risk. You acknowledge, represent and agree that:
1.
2.
3.
4.
You have unique knowledge concerning Federal, State and local regulatory requirements (including but not limited to Food and Drug
Administration regulations, if applicable) which relate to your products and which relate to your use (and/or that of your employees,
affiliates, contractors or designees) of the EVM for evaluation, testing and other purposes.
You have full and exclusive responsibility to assure the safety and compliance of your products with all such laws and other applicable
regulatory requirements, and also to assure the safety of any activities to be conducted by you and/or your employees, affiliates,
contractors or designees, using the EVM. Further, you are responsible to assure that any interfaces (electronic and/or mechanical)
between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to
minimize the risk of electrical shock hazard.
Since the EVM is not a completed product, it may not meet all applicable regulatory and safety compliance standards (such as UL,
CSA, VDE, CE, RoHS and WEEE) which may normally be associated with similar items. You assume full responsibility to determine
and/or assure compliance with any such standards and related certifications as may be applicable. You will employ reasonable
safeguards to ensure that your use of the EVM will not result in any property damage, injury or death, even if the EVM should fail to
perform as described or expected.
You will take care of proper disposal and recycling of the EVM’s electronic components and packing materials.
Certain Instructions. It is important to operate this EVM within TI’s recommended specifications and environmental considerations per the
user guidelines. Exceeding the specified EVM ratings (including but not limited to input and output voltage, current, power, and
environmental ranges) may cause property damage, personal injury or death. If there are questions concerning these ratings please contact
a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the
specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or
interface electronics. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the
load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures
greater than 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include
but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using the
EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during normal operation, please
be aware that these devices may be very warm to the touch. As with all electronic evaluation tools, only qualified personnel knowledgeable
in electronic measurement and diagnostics normally found in development environments should use these EVMs.
Agreement to Defend, Indemnify and Hold Harmless. You agree to defend, indemnify and hold TI, its licensors and their representatives
harmless from and against any and all claims, damages, losses, expenses, costs and liabilities (collectively, "Claims") arising out of or in
connection with any use of the EVM that is not in accordance with the terms of the agreement. This obligation shall apply whether Claims
arise under law of tort or contract or any other legal theory, and even if the EVM fails to perform as described or expected.
Safety-Critical or Life-Critical Applications. If you intend to evaluate the components for possible use in safety critical applications (such
as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, such as devices
which are classified as FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate
Assurance and Indemnity Agreement.
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