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EVALUATION BOARD/KIT IMPORTANT NOTICE

Texas Instruments (TI) provides the enclosed product(s) under the following conditions:

This evaluation board/kit 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. Persons handling the product(s) must have

electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental
measures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit does
not fall within the scope of the European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling
(WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives.

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 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.

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. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge.

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.

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.

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 contact the TI application engineer or visit

www.ti.com/esh

.

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.

FCC Warning

This evaluation board/kit 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 rules, which are
designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments 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.

EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of 6 V to 25 V and the output voltage range of 0 V to 16.4 V.

Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions
concerning the input range, please contact a TI field representative prior to connecting the input power.

Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM.
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. The EVM is designed to operate

properly with certain components above 60

°

C as long as the input and output ranges are maintained. These components include but are

not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identified
using the EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation,
please be aware that these devices may be very warm to the touch.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Copyright © 2009, Texas Instruments Incorporated

Summary of Contents for bq20z65EVM-001

Page 1: ... functionality of the bq20z65 bq29412 solution under different charge and discharge conditions Contents 1 Features 2 2 bq20z65 Based Circuit Module 2 3 bq20z65 Circuit Module Schematic 3 4 Circuit Module Physical Layouts and Bill of Materials 3 5 EVM Hardware and Software Setup 8 6 Troubleshooting Unexpected Dialog Boxes 8 7 Hardware Connection 8 8 Operation 9 9 Calibration Screen 12 10 Pro Advanc...

Page 2: ...nt overvoltage protection IC and all other components necessary to accurately predict the capacity of 2 3 or 4 series cells 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 PIN NAME DESCRIPTION ...

Page 3: ...FET is set to ON state as default 3 Precharge FET mode Dedicates a precharge current path using an additional open drain OD pin drive FET PCHG FET to sustain the PACK voltage level To use a particular mode of charging with the EVM add or remove some elements shown in Table 2 and use the given settings of DF Configuration ZVCHG1 0 Table 2 Components and Flash Memory Settings for Different Precharge...

Page 4: ...PCB layers Figure 1 through Figure 5 and assembly drawing for the bq20z65 module Figure 1 bq20z65EVM 001 Layout Silk Screen Figure 2 Top Assembly Figure 3 Top Layer 4 bq20z65EVM 001 SBS 1 1 Impedance Track Technology SLUU353 June 2009 Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback ...

Page 5: ... 47µF 16 V X7R 20 0603 Any STD 3 C10 C14 C21 Capacitor Ceramic 1 0µF 25 V X7R 20 0805 Any STD 4 D1 D3 D11 Diode Switching 150 mA 75 V 350mW SOT23 Vishay Liteon BAS16 2 D4 D5 Diode Dual Zener 5 6V 300mW SOT23 Vishay AZ23C5V6 Telefunken 5 D6 D10 Diode LED Green Gullwing GW Type 20ma 7 5 0 120 0 087 Panasonic LN1361C mcd typ inches 1 J1 Header Friction Lock Ass y 4 pin Right Angle 0 400 0 500 Molex 2...

Page 6: ... 16 W 5 0603 Std Std 2 R25 R29 Resistor Chip 8 45kΩ 1 16 W 1 0603 Std Std 2 R26 R30 Resistor Chip 61 9kΩ 1 16 W 1 0603 Std Std 7 R6 R10 R31 Resistor Chip 1kΩ 1 16 W 5 0603 Std Std R35 2 RT1 RT2 Thermistor 10kΩ 0 095 0 150 Semitec NTC103AT 1 SW1 Switch Push button Momentary N O Low Profile 5 mm 5 mm Panasonic EVQPLCxxxx 2 TB1 TB4 Terminal Block 2 pin 6 A 3 5mm 0 27 0 25 OST ED1514 2 TB2 TB3 Termina...

Page 7: ...ical Layouts and Bill of Materials Figure 6 Schematic This section summarizes the performance specifications of the bq20z65 bq29412 circuit module SLUU353 June 2009 bq20z65EVM 001 SBS 1 1 Impedance Track Technology 7 Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback ...

Page 8: ...ardware has been found When asked Can Windows connect to Windows Update to search for software select No not this time and click on NEXT In the next dialog window it indicates This wizard helps you install software for TI USB Firmware Updater select Install the software automatically Recommended and click NEXT It is common for the next screen to be the Confirm File Replace screen Click No to conti...

Page 9: ...z65 Based Battery EV2300 SMBD SMBD SMBC SMBC VSS GND 2 Connect the PC USB cable to the EV2300 and the PC USB port The bq20z65EVM 001 is now set up for operation This section details the operation of the bq20z65 EVSW software Run bq Evaluation Software from the Start Programs Texas Instruments bq20z65 EVSW menu sequence The SBS Data screen Figure 8 appears Data begins to appear once the Refresh sin...

Page 10: ...is screen Figure 8 shows the SBS data set along with additional ManufacturersAccess command information such as individual cell measurements Additional Flag and Static data can be viewed by selecting the appropriate tab at the bottom of the SBS screen Data such as SBS ManufacturerName is static and does not change This data is viewed separately using the Static Data tab available at the bottom of ...

Page 11: ...d press Enter 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 option 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 config...

Page 12: ...FETs Calibration using the FETs is not recommended Measure the pack voltage from Batt to Batt total of cell voltages Measure the temperature of the pack These steps may not be required depending on the type of calibration being performed Perform the following steps 1 Select the types of calibration to be performed see Figure 10 2 Enter the measured values for the types selected except for CC Offse...

Page 13: ...ecimal and decimal as soon as values are typed into the boxes Invalid values may cause erroneous results When scaling converted hexadecimal values to a higher number of bytes follow these rules When unsigned is selected the left pad contains zeroes When signed is selected the left pad contains zeroes for a positive number or the left pad contains F for negative numbers SLUU353 June 2009 bq20z65EVM...

Page 14: ... Gas Gauge Enabled and Protection Enabled With Impedance Track data sheet SLUS757 2 bq20z90 V1 50 bq29330 bq20z95 Technical Reference manual SLUU264 3 bq20z70 and bq20z90 Application Book SLUA404 4 Quick Start Guide for bq20zxx Family Gas Gauge application report SLUA421 5 bqEasy User s Guide SLUU278 14 bq20z65EVM 001 SBS 1 1 Impedance Track Technology SLUU353 June 2009 Enabled Battery Management ...

Page 15: ...oduct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or visit www ti com esh 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 ...

Page 16: ...o change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you will fully indemn...

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