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User's Guide

SLUU824–December 2011

bq3055EVM SBS 1.1 Compliant Advanced Gas Gauge

Battery Management Solution EVM

The bq3055EVM is a complete evaluation system for the bq3055/bq29440 battery management system.

This system includes one bq3055/bq29440 circuit module, a current sense resistor, two thermistors, and a

link to Windows

-based PC software.

The circuit module includes one bq3055 IC, one bq29440 IC, and all other onboard components

necessary to monitor and predict capacity, perform cell balancing, monitor critical parameters, protect the

cells from overcharge, overdischarge, short circuit, and overcurrent in 2-series, 3-series, or 4-series cell

Li-ion or Li-polymer battery packs. The circuit module connects directly across the cells in a battery.

With the EV2300 or EV2400 interface board and software, users can read the bq3055 data registers,

program the chipset for different pack configurations, log cycling data for further evaluation, and evaluate

the overall functionality of the bq3055/bq29440 solution under different charge and discharge conditions.

Contents

1 Features ...................................................................................................................... 2

2 bq3055 Device-Based Circuit Module .................................................................................... 2

3 bq3055 Circuit Module Schematic ........................................................................................ 3

4 Circuit Module Physical Layouts and Bill of Materials .................................................................. 3

5 EVM Hardware and Software Setup ..................................................................................... 9

6 Troubleshooting Unexpected Dialog Boxes ............................................................................. 9

7 Hardware Connection ...................................................................................................... 9

8 Operation ................................................................................................................... 11

9 Calibration Screen ......................................................................................................... 14

10 Pro (Advanced) Screen ................................................................................................... 16

11 Related Documentation from Texas Instruments ..................................................................... 17

List of Figures

1 bq3055EVM-001 Layout (Silk Screen) ................................................................................... 3

2 Top Assembly ............................................................................................................... 4

3 Top Layer .................................................................................................................... 4

4 Inner Layer 1 ................................................................................................................ 4

5 Inner Layer 2 ................................................................................................................ 5

6 Bottom Layer ................................................................................................................ 5

7 Bottom Assembly ........................................................................................................... 5

8 Schematic.................................................................................................................... 8

9 bq3055 Circuit Module Connection to Cells and System Load/Charger ........................................... 10

10 SBS Data Screen.......................................................................................................... 12

11 Data Flash Screen, 1st Level Safety Class ............................................................................ 13

12 Calibration Screen......................................................................................................... 15

13 Pro (Advanced) Screen................................................................................................... 17

List of Tables

1 Ordering Information........................................................................................................ 2

2 Bill of Materials .............................................................................................................. 6

SLUU824– December 2011 bq3055EVM SBS 1.1 Compliant Advanced Gas Gauge Battery Management

Solution EVM

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Sommario

Pagina 1 - User's Guide

User's GuideSLUU824–December 2011bq3055EVM SBS 1.1 Compliant Advanced Gas GaugeBattery Management Solution EVMThe bq3055EVM is a complete evaluat

Pagina 2 - 1.2 Ordering Information

COMPUTEREV2300 orEV2400SMBus cableUSBLOAD/CHARGER+-Hardware Connectionwww.ti.comFigure 9. bq3055 Circuit Module Connection to Cells and System Load/Ch

Pagina 3

www.ti.comOperation8 OperationThis section details the operation of the bq3055 EVSW software.NOTE: The EV2300 or EV2400 driver does not support Window

Pagina 4 - Figure 4. Inner Layer 1

Operationwww.ti.comFigure 10. SBS Data ScreenThis screen shows the SBS data set along with additional ManufacturersAccess() command information,such a

Pagina 5 - Figure 7. Bottom Assembly

www.ti.comOperationFigure 11. Data Flash Screen, 1st Level Safety ClassTo read all the data from the bq3055 data flash, click on menu option | Data Fl

Pagina 6 - 4.2 Bill of Materials

Calibration Screenwww.ti.com9 Calibration Screen9.1 How to CalibrateThe bq3055 must be calibrated using power supplies or a power supply and cell simu

Pagina 7

www.ti.comCalibration ScreenFigure 12. Calibration Screen15SLUU824– December 2011 bq3055EVM SBS 1.1 Compliant Advanced Gas Gauge Battery ManagementSol

Pagina 8 - Figure 8. Schematic

Pro (Advanced) Screenwww.ti.com10 Pro (Advanced) Screen10.1 SMB CommunicationThe set of read/write operations over SMBus are not specific to any gas g

Pagina 9

www.ti.comRelated Documentation from Texas InstrumentsFigure 13. Pro (Advanced) Screen11 Related Documentation from Texas InstrumentsFor related docum

Pagina 10 - 7.2 PC Interface Connection

EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMSTexas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following c

Pagina 11 - 8.1 Starting the Program

FCC Interference Statement for Class B EVM devicesThis equipment has been tested and found to comply with the limits for a Class B digital device, pur

Pagina 12 - Operation

Featureswww.ti.com3 Performance Specification Summary... 94 Circuit

Pagina 13

【【Important Notice for Users of this Product in Japan】】This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Ja

Pagina 14 - 9.3 Board Offset Calibration

EVALUATION BOARD/KIT/MODULE (EVM)WARNINGS, RESTRICTIONS AND DISCLAIMERSFor Feasibility Evaluation Only, in Laboratory/Development Environments. Unless

Pagina 15 - Figure 12. Calibration Screen

IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and otherch

Pagina 16 - 10.3 Reprogramming

www.ti.combq3055 Circuit Module Schematic2.2 Pin DescriptionsPIN NAME DESCRIPTION1N –ve connection of first (bottom) cell1P +ve connection of first (b

Pagina 17

Circuit Module Physical Layouts and Bill of Materialswww.ti.comFigure 2. Top AssemblyFigure 3. Top LayerFigure 4. Inner Layer 14bq3055EVM SBS 1.1 Comp

Pagina 18

www.ti.comCircuit Module Physical Layouts and Bill of MaterialsFigure 5. Inner Layer 2Figure 6. Bottom LayerFigure 7. Bottom Assembly5SLUU824– Decembe

Pagina 19

Circuit Module Physical Layouts and Bill of Materialswww.ti.com4.2 Bill of MaterialsTable 2. Bill of MaterialsReferenceCount Value Description Size Pa

Pagina 20

www.ti.comCircuit Module Physical Layouts and Bill of MaterialsTable 2. Bill of Materials (continued)ReferenceCount Value Description Size Part Number

Pagina 21

2VSS111P4PPACK -SYS PRESSMBD3P2P2SMBCPACK+1NWakeNot installed.For Thumbus-SMBIC ground should be connected to the 1N cell tab.C10.1uFC30.1uFR81KR61KR5

Pagina 22 - IMPORTANT NOTICE

www.ti.comEVM Hardware and Software Setup4.3 bq3055/bq29440 Circuit Module Performance Specification SummaryThis section summarizes the performance sp