Texas Instruments Bq3060EVM-001 Manual de usuario

User's Guide

SLUU342A–October 2009–Revised March 2012

bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge

Battery Management Solution EVM

This evaluation module (EVM) is a complete evaluation system for the bq3060/bq29412 battery

management system. The EVM includes one bq3060/bq29412 circuit module. The circuit module includes

one bq3060 integrated circuit (IC), one bq29412 IC, and all other onboard components necessary to

monitor and predict capacity, perform cell balancing, monitor critical parameters, protect the cells from

overcharge, over-discharge, short-circuit, and overcurrent in 2-, 3- or 4-series cell Li-ion or Li-polymer

battery packs. The circuit module connects directly across the cells in a battery. If a designer wants to

communicate with this EVM from a Windows-based PC, a separate USB Interface Adapter EVM is

recommended. The EV2300 or EV2400 EVM interface board enables an IBM-compatible or other type PC

(with the required driver for its particular platform) to communicate with the Texas Instruments SMBus,

I2C, HDQ, or DQ interface gas gauges via a Universal Serial Bus (USB) port. With the EV2300 interface

board and software, the user can read the bq3060 data registers, program the chipset for different pack

configurations, log cycling data for further evaluation, and evaluate the overall functionality of the

bq3060/bq29412 solution under different charge and discharge conditions.

empty paras to force the title "List of Tables to second page

Contents

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

2 bq3060-Based Circuit Module ............................................................................................. 2

3 bq3060 Circuit Module Schematic ........................................................................................ 3

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

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

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

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

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

9 Calibration Screen ......................................................................................................... 13

10 Pro (Advanced) Screen ................................................................................................... 15

11 Pack Assembly and The bq3060 ........................................................................................ 16

12 Related Documentation from Texas Instruments ..................................................................... 17

List of Figures

1 bq3060EVM-001 Layout (Silk Screen)................................................................................... 4

2 Top Assembly ............................................................................................................... 5

3 Top Layer .................................................................................................................... 5

4 Internal Layer 1.............................................................................................................. 5

5 Internal Layer 2.............................................................................................................. 6

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

7 Bottom Assembly ........................................................................................................... 6

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

9 bq3060 Circuit Module Connection to Cells and System Load/Charger ........................................... 10

10 SBS Data Screen.......................................................................................................... 11

11 Data Flash Screen, 1st Level Safety Class............................................................................ 12

12 Calibration Screen......................................................................................................... 14

Windows, Microsoft are trademarks of Microsoft Corporation.

SLUU342A–October 2009–Revised March 2012 bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery

Management Solution EVM

This datasheet has been downloaded fromhttp://www.digchip.com at this page

Features

www.ti.com

13 Pro (Advanced) Screen................................................................................................... 15

14 Connection Sequence .................................................................................................... 16

15 Fuel Gauging Command ................................................................................................. 16

List of Tables

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

2 Components and Flash-Memory Settings for Different Pre-charge Modes ......................................... 4

3 Bill of Materials.............................................................................................................. 7

4 Performance Specification Summary..................................................................................... 9

5 Circuit Module to EV2300 Connections ................................................................................ 10

1 Features

• Complete evaluation system for the bq3060 SBS 1.1-compliant advanced gas gauge and bq29412

independent overvoltage protection IC

• Populated circuit module for quick setup

• PC software and interface board for easy evaluation

• Software that allows data logging for system analysis

1.1 Kit Contents

• bq3060/bq29412 circuit module

• Set of support documentation

1.2 Ordering Information

Table 1. Ordering Information

EVM PART NUMBER CHEMISTRY CONFIGURATION CAPACITY

bq3060EVM-001 Li-ion 2, 3, or 4 cell Any

2 bq3060-Based Circuit Module

The bq3060/bq29412-based circuit module is a complete and compact example solution of a bq3060

circuit for battery management and protection of Li-ion or Li-polymer packs. The circuit module

incorporates a bq3060 battery monitor IC, bq29412 independent overvoltage protection IC, and all other

components necessary to accurately predict the capacity of 2-, 3-, or 4-series cells.

2.1 Circuit Module Connections

Contacts on the circuit module provide the following connections:

• Direct connection to the cells: 1N (BAT–), 1P, 2P, 3P, 4P (BAT+)

• To the serial communications port (SMBC, SMBD)

• The system load and charger connect across PACK+ and PACK–

• To the system-present pin (SYS PRES)

2bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery SLUU342A–October 2009–Revised March 2012

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bq3060 Circuit Module Schematic

2.2 Pin Descriptions

PIN NAME DESCRIPTION

1N –ve connection of first (bottom) cell

1P +ve connection of first (bottom) cell

2P +ve connection of second cell

3P +ve connection of third cell

4P +ve connection of fourth (top) cell

SMBC Serial communication port clock

SMBD Serial communication data port

SYS PRES System present pin (if low, system is present)

PACK– Pack negative terminal

VSS Pack negative terminal

PACK+ Pack positive terminal

3 bq3060 Circuit Module Schematic

This section contains information for modifying and choosing a pre-charge mode for bq3060/bq29412

implementation.

3.1 Schematic

The schematic follows the bill of materials in this user's guide. To target a low cost solution, the external

cell balance circuit is not part of the reference schematic in the datasheet. However, this circuit is included

in the EVM for customers who would like to evaluate external cell balancing feature of the device.

NOTE: The optional Zener diode (D4) and resistor (R32) on the SYS PRES pin, which are only

required if SYS PRES has a chance to short to PACK+, are not available on REV. A EVM.

3.2 Modifications for Choosing Particular Pre-charge Mode

The bq3060 provides a current-limited charging path typically used for low battery voltage or low

temperature charging. The external zero voltage or pre-charge (ZVCHG) FET connects to an external pre-

charge load resistor bypassing the CHGFET path, and can be controlled via the setting of the

DF.Configuration, ZVCHG1, 0.

SLUU342A–October 2009–Revised March 2012 bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery

Management Solution EVM

Circuit Module Physical Layouts and Bill of Materials

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Table 2. Components and Flash-Memory Settings for Different Pre-charge

Modes

MODE RESISTORS PRECHG FET ZVCHG1 ZVCHG0

1. ZVCHG FET R23 Q4 0 0

2. Not defined N/A N/A 0 1

3. Not defined N/A N/A 1 0

4. No action N/A N/A 1 1

For more details about pre-charge operation and mode choices, see the bq3060 data sheet (SLUS928).

3.3 Testing Fuse-Blowing Circuit

To prevent the loss of board functionality during the fuse-blowing test, the actual chemical fuse is not

provided in the circuit. FET Q3 drives TP5 low if a fuse-blow condition occurs (a pull-up at TP5 is

required); so, monitoring TP5 can be used to test this condition.

4 Circuit Module Physical Layouts and Bill of Materials

This section contains the board layout, bill of materials, and assembly drawings for the bq3060/bq29412

circuit module.

NOTE: The optional zener diode (D4) and resistor (R32) on the SYS PRES pin, which are only

required if SYS PRES has a chance to short to PACK+, are not available on REV. A EVM.

4.1 Board Layout

This section shows the dimensions, PCB layers (Figure 1 through Figure 7), and assembly drawing for the

bq3060 module.

Figure 1. bq3060EVM-001 Layout (Silk Screen)

4bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery SLUU342A–October 2009–Revised March 2012

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Circuit Module Physical Layouts and Bill of Materials

Figure 2. Top Assembly

Figure 3. Top Layer

Figure 4. Internal Layer 1

SLUU342A–October 2009–Revised March 2012 bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery

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Circuit Module Physical Layouts and Bill of Materials

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Figure 5. Internal Layer 2

Figure 6. Bottom Layer

Figure 7. Bottom Assembly

4.2 Bill of Materials and Schematic

6bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery SLUU342A–October 2009–Revised March 2012

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Circuit Module Physical Layouts and Bill of Materials

Table 3. Bill of Materials

RefDes Value Description Size Part Number MFR

C1–C8, C10, 0.1μF Capacitor, Ceramic, 0.1μF, 50 V, X7R, 20% 0603 STD Any

C12–16, C18,

C19, C23, C24

C11, C17, C20 1.0μF Capacitor, Ceramic, 1.0 μF, 25 V, X7R, 20% 0805 STD Any

C21, C22 100pF Capacitor, Ceramic, 100pF, 50 V, X7R, 10% 0603 STD Any

C9 0.22μF Capacitor, Ceramic, 0.22μF, 25 V, X7R, 20% 0603 STD Any

D1–D3 MBRX02560 Diode, Schottky, 250mA, 60V SOD-323 MBRX02560 Micro

Commercial

D4 MM3Z5V6C Diode, Zener, 5.6V, 200mw SOD323 MM3Z5V6C Fairchild

J1 22-05-3041 Header, Friction Lock Assy., 4-pin right angle 0.400 × 0.500 22-05-3041 Molex

Q1, Q2 Si1023X MOSFET, P-ch, –20V, –350mA, 1.2ΩSC-89 Si1023x Vishay

Q3 NDS351AN MOSFET, N-ch, 30-V, 1.4A, 0.16-ΩSOT23 NDS351AN Fairchild

Q4, Q5, Q6 Si4435DY MOSFET, P-ch, 30-V, 8.0-A, 20-mΩSO8 Si4435DY Siliconix

R1–R9, R30 1K Resistor, Chip, 1kΩ, 1/16-W, 5% 0603 Std Std

R10–R13 100 Resistor, Chip, 100 Ω, 1/4-W, 5% 1206 CRCW1206100RJNEA Vishay

R14 .010 75ppm Resistor, Chip, 0.010 Ω, 1-W, 1% 2512 WSL-2512-010 1% R86 Vishay

R15, R16, R29, 100 Resistor, Chip, 100 Ω, 1/16-W, 5% 0603 Std Std

R31, R32

R17, R19 220K Resistor, Chip, 220 kΩ, 1/16-W, 5% 0603 Std Std

R18 1M Resistor, Chip, 1MΩ, 1/16-W, 5% 0603 Std Std

R20, R25 3M Resistor, Chip, 3 MΩ, 1/16-W, 5% 0603 Std Std

R21, R22, R24 5.1K Resistor, Chip, 5.1kΩ, 1/16-W, 5% 0603 Std Std

R23 301 Resistor, Chip, 301-Ω, 1-W, 10% 2512 CRCW2512301RFKEG Vishay

R27, R28 200 Resistor, Chip, 200-Ω, 1/16-W, 5% 0603 Std Std

RT1, RT2 10K Thermistor, 10 kΩ0.095 × 0.150 BN35-3H103FB-50 Mitsubishi

or 103AT-2 Material or

Semitec

TB1 ED1514 Terminal Block, 2-pin, 6-A, 3,5 mm 0.27 × 0.25 ED555/2DS OST

TB2, TB4, TB5 ED1515 Terminal Block, 3-pin, 6-A, 3,5 mm 0.41 × 0.25 ED555/3DS OST

TP1, TP2, Test Point, White, Thru Hole Color Keyed 0.100 × 0.100 inch 5002 Keystone

TP5–TP7, TP9

U1 BQ29412DCT IC, Voltage Protection for 2, 3, 4 Cell Lion, SSOP-08 BQ29412DCT TI

2nd Protection, 4.45 v OVP

U2 BQ3060PW IC, SBS 1.1-Compliant gas gauge and protection TSSOP-24 BQ3060PW TI

-- PCB HPA328 Any

QTY Connector

2 J1 mate Connector, Female, 0.100-inch Centers Molex 22-01-3047

8 N/A Terminals, Crimp, Tin Molex 08-50-0114

N/A Wire, Insulated 24 AWG, Red, 18 Inches (±3 inches)(USB_5V) Alpha 1854-3

N/A Wire, Insulated 24 AWG, White, 18 Inches (±3 inches)(SCL) Alpha 1854-1

N/A Wire, Insulated 24 AWG, Black, 18 Inches (±3 inches)(GND) Alpha 1854-2

N/A Wire, Insulated 24 AWG, Brown, 18 Inches (±3 inches) (SDA) Alpha 1854-7

1 N/A Heatshrink 1" Any Any

Notes: 1. These assemblies are ESD sensitive, ESD precautions shall be observed.

2. These assemblies must be clean and free from flux and all contaminants. Use of no clean flux is not acceptable.

3. These assemblies must comply with workmanship standards IPC-A-610 Class 2.

4. Ref designators marked with an asterisk ('**') cannot be substituted. All other components can be substituted with equivalent MFR's

components.

5. Make one SMBus connector wire assembly for each assembly produced, from J1 mate, 4–24 AWG wires and Crimp terminals. Wire colors

for Pin numbers are listed below. The wire assembly shall have a J1 mate on each end.

Red - Pin # 4 (Signal USB_5V)

Brown - Pin # 3 (Signal SDA)

White - Pin # 2 (Signal SCL)

Black - Pin # 1 (GND)

6. The generic part number for Mitsubishi Material is BN35-3H103XX-XX for RT1 and RT2. If they are not available use 103AT-2

SLUU342A–October 2009–Revised March 2012 bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery

Management Solution EVM

Circuit Module Physical Layouts and Bill of Materials

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Figure 8. Schematic

8bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery SLUU342A–October 2009–Revised March 2012

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EVM Hardware and Software Setup

4.3 bq3060/bq29412 Circuit Module Performance Specification Summary

This section summarizes the performance specifications of the bq3060/bq29412 circuit module.

Table 4. Performance Specification Summary

Specification Minimum Typical Maximum Units

Input voltage Pack+ to Pack– 6 15 25 V

Charge and discharge current 0 2 7 A

5 EVM Hardware and Software Setup

This section describes how to install the bq3060EVM-001 PC software, and how to connect the different

components of the EVM.

5.1 System Requirements

The bq3060EVSW software requires Windows™ 2000 or Windows XP. Drivers for Windows 98SE are

provided, but Microsoft™ no longer supports Windows 98; and there may be issues in Windows 98 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 bq3060 tool folder on power.ti.com. Use the following steps to install

the bq3060EVSW software:

1. Save the archive to a temporary directory. Open the archive containing the installation package, and

copy its contents in a temporary directory. The executable filename can consist of several component

names and versions. Double-click on the executable filename, and follow the installer instructions to

complete the bq3060 EVM installation.

2. If the EV2300 was not previously installed, after bq3060 EVM installation, a TI USB DRIVER

INSTALLER pops up. Click "Yes" for the agreement message and follow its instructions.

3. Plug the EV2300 into a USB port.

6 Troubleshooting Unexpected Dialog Boxes

Ensure that the files were extracted from the zip file using the Preserve Folder names option.

Ensure that all the files were extracted from the zip file.

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 bq3060EVM-001 comprises three hardware components: the bq3060/bq29412 circuit module, the

EV2300 PC interface board, and the PC.

7.1 Connecting bq3060/bq29412 Circuit Module to Battery Pack

Figure 9 shows how to connect the bq3060/bq29412 circuit module to the cells and system load/charger.

The cells should be connected in the following order:

1. 4-Cell Pack: 1N (BAT–), 1P, 2P, 3P, and 4P (see Section 2.1 for definitions).

2. 3-Cell Pack: 1N (BAT–), 1P, 2P, and then connect 4P and 3P together.

3. 2-Cell Pack: 1N (BAT–), 1P, and then connect 4P, 3P, and 2P together

SLUU342A–October 2009–Revised March 2012 bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery

Management Solution EVM

Hardware Connection

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To start charge or discharge test, connect PRES pin to PACK- pin to set SYS PRES state. To test sleep

mode, disconnect the PRES pin.

Figure 9. bq3060 Circuit Module Connection to Cells and System Load/Charger

7.2 PC Interface Connection

The following steps configure the hardware for interface to the PC:

1. Connect the bq3060-based smart battery to the EV2300 using wire leads as shown in Table 5.

Table 5. Circuit Module to EV2300 Connections

bq3060-Based Battery EV2300

SMBD SMBD

SMBC SMBC

VSS GND

2. Connect the PC USB cable to the EV2300 and the PC USB port.

The bq3060EVM-001 is now set up for operation.

10 bq3060EVM-001 SBS 1.1 Compliant Advanced Gas Gauge Battery SLUU342A–October 2009–Revised March 2012

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