User's Guide
SLUUA90A – April 2013 – Revised July 2016
bq27531EVM With bq27531 Battery Management Unit
Impedance Track™ Fuel Gauge and bq24192 4.5-A,
Switch-Mode Battery Charger for Single-Cell Applications
This evaluation module (EVM) is a complete evaluation system for the Battery Management Unit (BMU)
chipset consisting of the bq27531-G1 fuel gauge and bq24192 battery charger. The EVM includes one
bq27531 circuit, including a current sense resistor and one thermistor. In addition, the fuel gauge controls
the bq24192 battery charger's settings and monitors its status via I2C communication lines. Together, the
chipset provides all necessary components to monitor and predict capacity for a system-side fuel gauge
solution as well as to charge the battery from either an adapter or USB input with up to 4.5-A of charge
current. The circuit module connects directly across the battery pack. With the EV2300 interface board
and software, the user can read the bq27531-G1 data registers, program the chipset for different pack
configurations, log cycling data for further evaluation, and evaluate the overall functionality of the battery
management unit solution under different charge and discharge conditions. The latest Microsoft®
Windows® based PC software can be downloaded from the product folder on the Texas Instruments Web
site.
1
2
3
4
5
6
7
8
9
Contents
Features ....................................................................................................................... 2
bq27531-Based Circuit Module ............................................................................................ 2
Circuit Module Physical Layouts, Bill of Materials, and Schematic ................................................... 6
EVM Hardware and Software Setup ..................................................................................... 13
Troubleshooting Unexpected Dialog Boxes ............................................................................ 16
Operation .................................................................................................................... 17
Calibration ................................................................................................................... 19
Advanced Communication I2C ............................................................................................ 21
Related Documentation From Texas Instruments ..................................................................... 22
List of Figures
1
Schematic ..................................................................................................................... 3
2
bq27531EVM-001 Layout – Silk Screen .................................................................................. 6
3
Layer 1 ........................................................................................................................ 7
4
Layer 2 ........................................................................................................................ 8
5
Layer 3 ........................................................................................................................ 9
6
Layer 4 ....................................................................................................................... 10
7
BAT_Load (PR1010) Schematic ......................................................................................... 13
8
Test Setup for bq27531EVM (PWR216) ................................................................................ 15
9
Registers Screen ........................................................................................................... 17
10
bqStudio Default Page..................................................................................................... 18
11
Data Memory Screen ...................................................................................................... 19
12
Calibration Screen
13
14
15
.........................................................................................................
Advanced Communication I2C ............................................................................................
Golden Image Output Screen ............................................................................................
Perform Programming Screen ............................................................................................
20
21
21
21
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.
SLUUA90A – April 2013 – Revised July 2016
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Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
Copyright © 2013–2016, Texas Instruments Incorporated
Applications
1
Features
www.ti.com
List of Tables
1
2
1
Features
•
•
•
•
•
1.1
........................................................................................................ 2
Bill of Materials ............................................................................................................. 11
Ordering Information
Complete evaluation system for the Battery Management Unit chipset consisting of the bq27531-G1
Impedance Track fuel gauge and bq24192 4.5-A Battery Charger.
Populated circuit module for quick setup
Personal computer (PC) software and interface board (orderable on TI website) for easy evaluation
Software that allows data logging for system analysis (available in product folder on TI website)
Ability to upgrade to the latest firmware version by flash reprogramming
Kit Contents
•
•
bq27531-G1 and bq24192 chipset circuit module (PWR216)
NTC103AT thermistor
This EVM is used for the evaluation of the bq27531-G1 and bq24192 BMU chipset. Ensure that you visit
the product Web folder at www.ti.com to download the latest firmware version, evaluation software, and
documentation for the associated product to be evaluated.
1.2
Ordering Information
Table 1. Ordering Information
2
EVM PART NUMBER
CHEMISTRY
CONFIGURATION
CAPACITY
bq27531EVM
Li-ion
1 cell
Any
bq27531-Based Circuit Module
The bq27531-based circuit module is a complete and compact example solution of a bq27531 circuit for
battery management. The circuit module incorporates a bq27531 battery gas gauge integrated circuit (IC)
and all other components necessary to accurately predict the capacity of 1-series Li-ion cell.
2
bq27531EVM With bq27531 Battery Management Unit Impedance Track™
SLUUA90A – April 2013 – Revised July 2016
Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
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bq27531-Based Circuit Module
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Figure 1. Schematic
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3
bq27531-Based Circuit Module
2.1
www.ti.com
Circuit Module Connections
Contacts on the circuit module provide the following connections:
• Direct connection to the battery pack (J12): PACK+, PACK–, and TS
• To the serial communications port (J10): SDA, SCL, and VSS
• Connection to system load (J5)
• Connection to charger (J2)
• Access to signal output (J13): SOC_INT
2.2
2.3
4
I/O Description
Header/Terminal Block
Description
J1–VIN
Adapter positive terminal
J2–VIN
Adapter positive terminal
J2–GND
Adapter negative terminal
J3-GND
Adapter negative terminal
J4-SYS
System positive terminal
J5-SYS
System positive terminal
J5-GND
System negative terminal
J6-GND
System negative terminal
J7-TEST
Test terminal
J8
USB Miniconnector
J9
USBTOGPIO 10-pin connector (not installed)
J10
EV2300 connector for using bq27531 software to communicate with bq27531 IC
J11
Allows SOC_INT to be tied to external pullup rather than VCC
J12-PACK+
Battery positive terminal
J12-T
Pack thermistor input that leads to IC TS pin
J12-PACK-
Battery negative terminal
J12-SOC_INT
SOC_INT output from gauge
Test Points
Test Point
Description
TP1
bq24192 IN voltage
TP2
bq24192 PSEL pin
TP3
bq24192 PG/D- pin
TP4
bq24192 STAT pin
TP5
bq24192 SCL = bq27531 BSCL - I2C communication clock line
TP6
bq24192 SDA = bq27531 BSDA - I2C communication data line
TP7
bq24192 INT pin
TP8
bq24192 OTG pin
TP9
bq24192 CE pin
TP10
PGND
TP11
bq24192 TS1 pin
TP12
bq24192 TS2 pin
TP13
bq24192 BAT pin
TP14
PGND
TP15
bq24192 SYS pin
TP16
PGND
TP17
PGND
bq27531EVM With bq27531 Battery Management Unit Impedance Track™ Fuel
Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
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bq27531-Based Circuit Module
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2.4
Test Point
Description
TP18
PGND
TP19
bq24192 SW pin
TP20
bq24192 SW signal
TP21
bq24192 PMID pin
TP22
PGND
TPA1
PACK-
TPA2
bq27531 SOC_INT pin
TPD1
bq27531 VCC pin
TPD3
bq27531 TS pin
TDPE3
External thermistor output
TPE3
bq27531 BI/TOUT pin
Control and Key Parameters Setting
Jumper
Description
Default Factory Setting
JP1
USB D+/D-
Shorting jumper for USB data lines DM (D-) and DP (D+). When shorted,
USB input current limit defaults to 1.5 A. Otherwise, USB100 mode is
selected.
INSTALLED
JP2
PSEL
2-3 (PSEL = LO): Indicates that an ac adapter is connected to the USB input
and sets the USB input current limit to 1.5 A.
1-2 (PSEL = HI)
1-2 (PSEL = HI): Indicates that a USB source is connected to the USB input
and sets the input current limit to 500 mA. (DEFAULT)
JP3
OTG
When installed, OTG feature will be disabled.
NOT INSTALLED
JP4
CHARGE ENABLE
When installed, charging is enabled.
INSTALLED
JP5
SOC_INT
2-3: SOC_INT is tied to external pull-up
1-2: SOC_INT is tied to onboard VCC through pull-up (DEFAULT)
1-2 VCC
JP6
D-/PG
2-3: Connect D-/PG to D1-2: Connect D-/PG to PG (DEFAULT)
1-2 PG
JP7
FUEL GAUGE
ENABLE
1-2 ON: Fuel gauge enable (CE) pin high for normal operation (DEFAULT)
2-3 OFF: Fuel gauge enable (CE) pin low to disable gauging
1-2 ON
SLUUA90A – April 2013 – Revised July 2016
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5
Circuit Module Physical Layouts, Bill of Materials, and Schematic
3
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Circuit Module Physical Layouts, Bill of Materials, and Schematic
This section contains the board layout, bill of materials, assembly drawings, and schematic for the
bq27531 circuit module.
3.1
Board Layout
This section shows the printed-circuit board (PCB) layers (Figure 2 through Figure 5), assembly drawing,
and schematic for the bq27531 module.
TEXAS
INSTRUMENTS
Figure 2. bq27531EVM-001 Layout – Silk Screen
6
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Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
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Circuit Module Physical Layouts, Bill of Materials, and Schematic
Figure 3. Layer 1
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Circuit Module Physical Layouts, Bill of Materials, and Schematic
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Figure 4. Layer 2
8
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Circuit Module Physical Layouts, Bill of Materials, and Schematic
Figure 5. Layer 3
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Circuit Module Physical Layouts, Bill of Materials, and Schematic
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Figure 6. Layer 4
10
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Circuit Module Physical Layouts, Bill of Materials, and Schematic
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3.2
Bill of Materials and Schematic
Table 2. Bill of Materials
COUNT
RefDes
Value
Description
Size
Part Number
MFR
1
C18
0.033uF
Capacitor, Ceramic, 16V, X7R, 10%
402
C1005X7R1C333K
TDK
4
C15, C16, C19, C20
0.1uF
Capacitor, Ceramic, 6.3V, X5R, 10%
402
C1005X5R0J104K050BA
TDK
1
C17
1.0uF
Capacitor, Ceramic, 6.3V, X5R, 10%
402
C1005X5R0J105K050BB
TDK
2
C11, C12
0.1uF
Capacitor, Ceramic, 25V, X5R, 10%
603
C1608X5R1E104K
TDK
2
C10, C14
1.0uF
Capacitor, Ceramic, 10V, X5R, 10%
603
C1608X5R1A105K080AC
TDK
1
C5
1.0uF
Capacitor, Ceramic, 25V, X5R, 10%
603
C1608X5R1E105K080AC
TDK
1
C6
4.7uF
Capacitor, Ceramic, 10V, X5R, 10%
603
CGB3B1X5R1A475K055AC
TDK
1
C13
10uF
Capacitor, Ceramic, 10V, X5R, 10%
603
C1608X5R1A106K080AC
TDK
1
C7
47nF
Capacitor, Ceramic, 10V, X5R, 10%
603
06033D473KAT2A
AVX
0
C3, C4
DNP
Capacitor, Ceramic, 10V, X5R, 10%
603
4
C1, C2, C8, C9
10uF
Capacitor, Ceramic, 25V, X5R, 10%
805
C2012X5R1E106K125AB
TDK
0
J9
DNP
Connector, Male Straight 2x5 pin, 100mil
spacing, 4 Wall
0.338 x 0.788 inch
N2510-6002-RB
3M
1
J8
UX60-MB-5ST
Connector, Recpt, USB-B, Mini, 5-pins,
SMT
0.354 X 0.303 Inches
UX60-MB-5ST
Hirose Electric
Co
2
D1, D2
Green
Diode, LED, Green, 2.1-V, 10-mA, 6-mcd
603
LTST-C190GKT
Liteon
5
J1, J3, J4, J6, J11
PEC02SAAN
Header, Male 2-pin, 100mil spacing
0.100 inch x 2
PEC02SAAN
Sullins
1
J10
22-05-3041
Header, Friction Lock Ass'y, 4-pin Right
Angle
0.400 x 0.500
22-05-3041
Molex
1
L1
2.2uH
Inductor, SMT, 4.2A, 50.1milliohm
0.204 x 0.216 inch
IHLP2020BZER2R2M01
Vishay
3
JP1, JP3, JP4
PEC02SAAN
Header, Male 2-pin, 100mil spacing
0.100 inch x 2
PEC02SAAN
Sullins
4
JP2, JP5, JP6, JP7
PEC03SAAN
Header, Male 3-pin, 100mil spacing
0.100 inch x 3
PEC03SAAN
Sullins
1
R4
10.0k
Potentiometer, 3/8 Cermet, Single-Turn
0.25x0.17 inch
3266W-1-103LF
Bourns
1
R25
1.00k
Resistor, Chip, 1/16W, 1%
402
CRCW04021K00FKED
Vishay
3
R17, R18, R23
10.0k
Resistor, Chip, 1/16W, 1%
402
CRCW040210K0FKED
Vishay
1
R22
18.2k
Resistor, Chip, 1/16W, 1%
402
CRCW040218K2FKED
Vishay
2
R1, R5
0
Resistor, Chip, 1/10W
603
CRCW06030000Z0EA
Vishay
2
R6, R7
5.23k
Resistor, Chip, 1/10W, 1%
603
CRCW06035K23FKEA
Vishay
2
R19, R20
1.00M
Resistor, Chip, 1/10W, 1%
603
ERJ-3EKF1004V
Panasonic
2
R11, R12
7.5k
Resistor, Chip, 1/10W, 1%
603
CRCW06037K50FKEA
Vishay
1
R2
169
Resistor, Chip, 1/10W, 1%
603
ERJ-3EKF1690V
Panasonic
0
R10, R13, R14, R15, R16
DNP
Resistor, Chip, 1/10W, 1%
603
1
R3
768
Resistor, Chip, 1/10W, 1%
603
ERJ-3EKF7680V
Panasonic
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Circuit Module Physical Layouts, Bill of Materials, and Schematic
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Table 2. Bill of Materials (continued)
1
R21
1.8M
Resistor, Chip, 1/10W, 1%
603
ERJ-3EKF1804V
Panasonic
2
R8, R9
2.21k
Resistor, Chip, 1/10W, 1%
603
ERJ-3EKF2211V
Panasonic
1
R24
0.01
Resistor, Chip, 1/4W, 1%
805
WSL0805R0100FEA18
Vishay
4
J2, J5, J7, J13
ED555/2DS
Terminal Block, 2-pin, 6-A, 3.5mm
0.27 x 0.25
ED555/2DS
OST
1
J12
ED555/3DS
Terminal Block, 3-pin, 6-A, 3.5mm
0.41 x 0.25 inch
ED555/3DS
OST
0
TP1, TP2, TP3, TP4, TP5, DNP
TP6, TP7, TP8, TP9,
TP10, TP11, TP12, TP13,
TP14, TP15, TP16, TP17,
TP18, TP19, TP20, TP21,
TP22, TPA1, TPA2,
TPD1, TPD3, TPDE3,
TPE3
Test Point, 0.020 Hole
0.100 x 0.100 inch
1
TP20
131-4244-00
Adaptor, 3.5-mm probe clip ( or 131-503100)
0.200 inch
131-4244-00
Tektronix
1
U1
bq24192RGET
IC, I2C Controlled 4.5A Single Cell
USB/Adapter Charger
QFN-24
bq24192RGET
TI
1
U2
bq27531G1YZFT
IC, Battery Management Unit Impedance
Track Fuel Gauge With bq24192 Charger
Controller
BGA
bq27531-G1YZFT
TI
1
RT1
10K
Thermistor, NTC, 3-A
0.095 X 0.150 inch
103AT-2
Semitec
5
Shunt, 100-mil, Black
0.100
929950-00
3M
1
PCB
PWR216
Any
12
bq27531EVM With bq27531 Battery Management Unit Impedance Track™ Fuel
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3.3
bq27531 Circuit Module Performance Specification Summary
This section summarizes the performance specifications of the bq27531 circuit module.
3.4
Recommended Operating Conditions
Min
Max
Unit
Input voltage from ac adapter
4.2
6
V
System voltage, VSYS
Voltage output at SYS terminal (depends on VBAT voltage
and status of VINDPM and input current limit circuits)
3.3
VBATR
EG+4.17
%
V
Battery voltage, VBAT
Voltage output at VBAT terminal (registers set via bq27531
software)
3
4.44
V
Supply current, IIN(MAX)
Maximum input current from ac adapter input (registers set
via bq27531 software)
1.5
3
A
Fast charge current,
ICHRG(MAX)
Battery charge current (registers set via bq27531 software)
0.550
3
A
-40
125
°C
Operating junction temperature range, TJ
4
Typ
Supply voltage, VIN
4.2
EVM Hardware and Software Setup
This section describes how to connect the different components of the EVM how to install the
bq27531EVM PC software and.
4.1
Recommended Test Equipment
4.1.1
Power Supplies
1. Power Supply #1 (PS #1) capable of supplying 6 V at 3 A is required.
2. If not using a battery as the load, then power supply #2 (PS #2) capable of supplying up to 5 V at 5 A
is required to power the circuit shown in Figure 7.
4.1.2
Load #1 Between BAT and GND
Testing with an actual battery is the best way to verify operation in the system. If a battery is not available,
then a circuit similar to the one shown in Figure 7 can simulate a battery when connected to a power
supply.
Figure 7. BAT_Load (PR1010) Schematic
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EVM Hardware and Software Setup
4.1.3
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Load #2 Between SYS and GND
Although not required, a resistive load capable of sinking up to 3 A can be used.
4.1.4
Meters
Three equivalent voltage meters (VM #) and two equivalent current meters (CM #) are required. The
current meters must be able to measure 3-A current.
4.1.5
Test Equipment Setup
1. For all power connections, use short, twisted-pair wires of appropriate gauge wire for the amount of the
current.
2. Set Power Supply #1 (PS #1) for 6-V, 3-A current limit and then turn off supply.
3. If BAT_Load as shown in Figure 8 is used, connect Power Supply #2 (PS #2) set to approximately 3.6
V to the input side (PS #2+/-) of BAT_Load, then turn off PS #2.
4. Connect the output side of the battery or BAT_Load in series with current meter to J12 (PACK+,
PACK-). Ensure that a voltage meter is connected across J12 (PACK+,PACK-).
5. Connect VM #3 across J5 (SYS, GND).
6. Ensure jumpers are at the default factory settings per Section 2.4
7. Connect I2C port of EV2300 with J10 board using the assembled 4 colored-wire connector included
with EV2300 kit (GND / BLACK at the bottom).
8. After the preceding steps have been performed, the test setup for PWR216 is configured as is shown
in Figure 8
14
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Elec Load/
Resistor Box
PS#1
PS#2
PR1010
EV2300
Figure 8. Test Setup for bq27531EVM (PWR216)
9. Turn on the computer. Open the bq27531 evaluation software. The main window of the software is
shown in Figure 9 (DataRAM Screen).
4.2
Software Installation
Find the latest software version at http://www.ti.com/tool/bqStudio. Use the following steps to install
Battery Management Studio:
4.2.1
1.
2.
3.
4.
5.
6.
Using EV2300
Ensure that the EV2300 is not connected to the PC through a USB cable before starting this
procedure.
Select the Tool and Software tab in the product folder.
Under the Software section, click on Battery Management Studio (bqStudio) Software Suite.
Click the Download button to download the software.
Download software to hard drive.
Double-click the software executable and follow all instructions and prompts.
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Troubleshooting Unexpected Dialog Boxes
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4.2.2
Using EV2400:
1. Ensure that the EV2400 is not connected to the PC through a USB cable before starting this
procedure.
2. Browse for the supported software link within the bq27531 TI web site product folder to find the
downloadable EVSW installation files.
3. Open the software file that was downloaded from the TI web site.
4. Follow the instructions on screen until the software installation is completed.
5
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.
16
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Operation
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6
Operation
This section details the operation of the bqStudio software.
6.1
Starting the Program
Run bqStudio from the Start | All Programs | Texas Instruments | Battery Management Studio. The main
screen (Figure 9) appears. If instead of Figure 9 appearing, Figure 10 appears, it may mean that the EVM
is not connected to the computer correctly. Make sure that the USB interface (EV2300 or EV2400 or GDK)
and the bq27531 are connected and restart bqStudio. If this still does not resolve the issue, check if the
I2C pullup resistors are connected. Data begins to appear once the (single-time scan) button is
clicked, or when the Scan button is clicked. To disable the scan feature, simply click the Scan button
again.
The continuous scanning period can be set by opening Window | Preferences → Registers section. The
range for this interval is 0 ms to 65,535 ms. Only items that are selected for scanning are scanned within
this period.
Battery Management Studio provides a logging function which logs the values that were last scanned. To
enable this function, select the Start Log button; this causes the Scan button to be pressed. When logging
is Stopped, the Scan button will still be selected and has to be manually clicked again.
Figure 9. Registers Screen
This screen (Figure 9) shows the RAM data in the bq27531 device. Additional Flags and Status data can
be viewed at the bottom of the Registers screen.
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17
Operation
www.ti.com
Figure 10. bqStudio Default Page
6.2
Setting Programmable bq27531 Options
The bq27531 data memory comes configured per the default settings detailed in the bq27531 technical
reference manual (SLUUA96). Ensure that the settings are correctly changed to match the pack and
application for the bq27531 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 Memory screen (Figure 11).
18
bq27531EVM With bq27531 Battery Management Unit Impedance Track™
SLUUA90A – April 2013 – Revised July 2016
Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
Submit Documentation Feedback
Copyright © 2013–2016, Texas Instruments Incorporated
Applications
Calibration
www.ti.com
Figure 11. Data Memory Screen
To read all the data from the bq27531 non-volatile flash memory, click on the Read All button on the Data
Memory window. Make sure the device is not sealed and in full access to read or write to the data
memory. To update a parameter, click on the desired parameter and a window pops-up that provides
details on the selected parameter. Next, enter the value in the value textbox and press Enter. After
pressing Enter, bqStudio updates the selected parameter. The Import button in the Data Memory window
can be clicked in order to import an entire configuration from a specified *.gg.csv file.
Save the configuration to a file by clicking the Export button in the Data Memory window and entering a
file name. The configuration is saved to a *.gg.csv file. The module calibration data is also held in the
bq27531 data memory. If the Gauge Dashboard is not displaying any information, then the bq27531 may
not be supported by the bqStudio version being used, a bqStudio upgrade may be required.
7
Calibration
The bq27530EVM must be calibrated to ensure accurate value reporting. This can be done by going to the
Calibration window in bqStudio (Figure 12).
7.1
Calibrating the bq27531
Calibrate each item one at a time in the order presented in this document. Select the types of calibration
to be performed by selecting the corresponding checkbox (see Figure 12).
Enter the measured values for the types selected, if necessary.
Then press the Calibrate Part as indicated below button. After all calibration is complete, close the
Calibrate subwindow. While the Calibrate subwindow is open, even in the background, the calibration
routines are running in firmware. Close the subwindow to ensure that they are stopped before proceeding
with configuration or testing.
7.2
CC Offset Calibration
This performs the internal calibration of the coulomb counter input offset. Press the Calibrate Coulomb
Counter button.
SLUUA90A – April 2013 – Revised July 2016
Submit Documentation Feedback
bq27531EVM With bq27531 Battery Management Unit Impedance Track™
Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
Copyright © 2013–2016, Texas Instruments Incorporated
Applications
19
Calibration
7.3
Voltage Calibration
•
•
•
•
•
7.4
www.ti.com
Measure the voltage across Pack+ and Pack- with a calibrated meter.
Type the voltage value in mV into Enter Actual Voltage .
Measure the temperature for PACK.
Type the temperature value into Enter Actual Temperature.
Press the Calibrate Voltage and Temperature as indicated below button.
Board Offset Calibration
This performs the offset calibration for the current offset of the board. It takes approximately 35 seconds to
complete.
It is expected that no current is flowing through the sense resistor while performing this calibration step.
Remove load and short PACK– to GND.
Press the Calibration Board Offset button.
7.5
Pack Current Calibration
•
•
•
Connect a load to GND and SYS that draws approximately 1 A, or connect a current source to GND
and Pack–. Ensure that the Measured Current reported is negative, or else reverse the connections.
Measure the current with a calibrated meter, and type the value into Enter Actual Current using (-) for
current in discharge direction.
Press the Calibrate Gas Gauge button.
Figure 12. Calibration Screen
20
bq27531EVM With bq27531 Battery Management Unit Impedance Track™
SLUUA90A – April 2013 – Revised July 2016
Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
Submit Documentation Feedback
Copyright © 2013–2016, Texas Instruments Incorporated
Applications
Advanced Communication I2C
www.ti.com
8
Advanced Communication I2C
8.1
I 2C Communication
I2C read/write operations are not specific to any gas gauge. These operations serve as general-purpose
communication tools (Figure 13).
Figure 13. Advanced Communication I2C
Figure 14. Golden Image Output Screen
Figure 15. Perform Programming Screen
SLUUA90A – April 2013 – Revised July 2016
Submit Documentation Feedback
bq27531EVM With bq27531 Battery Management Unit Impedance Track™
Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell
Copyright © 2013–2016, Texas Instruments Incorporated
Applications
21
Related Documentation From Texas Instruments
9
www.ti.com
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 also can be obtained through
the TI Web site at www.ti.com.
• bq27531, System-Side Impedance Track™ Fuel Gauge With Integrated LDO data sheet (SLUSBE7)
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (April 2013) to A Revision .......................................................................................................... Page
•
•
•
•
22
Deleted System Requirements and reworded Software Installation sections in EVM Hardware and Software Setup. ....
Changed the entire Operation section, text and images. ...........................................................................
Changed Calibrate Screen section to Calibration section, and changed much of the text in the section. ...................
Changed I2C Pro Screen section to Advanced Communication I2C, changed some text and the images in this
section. ....................................................................................................................................
Revision History
15
17
19
21
SLUUA90A – April 2013 – Revised July 2016
Submit Documentation Feedback
Copyright © 2013–2016, Texas Instruments Incorporated
STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES
1.
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.
1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms and conditions that accompany such Software
1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.
2
Limited Warranty and Related Remedies/Disclaimers:
2.1 These terms and conditions do not apply to Software. The warranty, if any, for Software is covered in the applicable Software
License Agreement.
2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for any defects that are caused by neglect, misuse or mistreatment
by an entity other than TI, including improper installation or testing, or for any EVMs that have been altered or modified in any
way by an entity other than TI. Moreover, TI shall not be liable for any defects that result from User's design, specifications or
instructions for such EVMs. Testing and other quality control techniques are used to the extent TI deems necessary or as
mandated by government requirements. TI does not test all parameters of each EVM.
2.3 If any EVM fails to conform to the warranty set forth above, TI's sole liability shall be at its option to repair or replace such EVM,
or credit User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the
warranty period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to
repair or replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall
be warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.
3
Regulatory Notices:
3.1 United States
3.1.1
Notice applicable to EVMs not FCC-Approved:
This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit
to determine whether to incorporate such items in a finished product and software developers to write software applications for
use with the end product. This kit is not a finished product and when assembled may not be resold or otherwise marketed unless
all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause
harmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit is
designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of
an FCC license holder or must secure an experimental authorization under part 5 of this chapter.
3.1.2
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
NOTE: 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.
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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. 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.
3.2 Canada
3.2.1
For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-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.
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.
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.
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
3.3 Japan
3.3.1
Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に
輸入される評価用キット、ボードについては、次のところをご覧ください。
http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page
3.3.2
Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified
by TI as conforming to Technical Regulations of Radio Law of Japan.
If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required by Radio Law of
Japan to follow the instructions below with respect to EVMs:
1.
2.
3.
Use EVMs 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 EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan
with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note
that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan.
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【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.
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
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
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4
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.
4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling
or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.
4.3 Safety-Related Warnings and Restrictions:
4.3.1
User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should 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 also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult the EVM user 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, even with the inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.
4.3.2
EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the
dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.
User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure 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. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.
4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,
state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.
5.
Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate
as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.
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6.
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.
6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS AND
CONDITIONS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY
OTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD
PARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY
INVENTION, DISCOVERY OR IMPROVEMENT MADE, CONCEIVED OR ACQUIRED PRIOR TO OR AFTER DELIVERY OF
THE EVM.
7.
USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL 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
HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS AND CONDITIONS. THIS OBLIGATION
SHALL APPLY WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY
OTHER LEGAL THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.
8.
Limitations on Damages and Liability:
8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,
INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE
TERMS ANDCONDITIONS OR THE USE OF THE EVMS PROVIDED HEREUNDER, REGARDLESS OF WHETHER TI HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED
TO, COST OF REMOVAL OR REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES, RETESTING, OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS,
LOSS OF SAVINGS, LOSS OF USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL
BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED.
8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY WARRANTY OR OTHER OBLIGATION
ARISING OUT OF OR IN CONNECTION WITH THESE TERMS AND CONDITIONS, OR ANY USE OF ANY TI EVM
PROVIDED HEREUNDER, EXCEED THE TOTAL AMOUNT PAID TO TI FOR THE PARTICULAR UNITS SOLD UNDER
THESE TERMS AND CONDITIONS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED. THE EXISTENCE
OF MORE THAN ONE CLAIM AGAINST THE PARTICULAR UNITS SOLD TO USER UNDER THESE TERMS AND
CONDITIONS SHALL NOT ENLARGE OR EXTEND THIS LIMIT.
9.
Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s)
will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in
a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable
order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),
excluding any postage or packaging costs.
10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,
without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to
these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.
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
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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. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and
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TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms
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TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and
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TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or
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