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4.3

bq20z65/bq29412 Circuit Module Performance Specification Summary

www.ti.com

Circuit Module Physical 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

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Содержание bq20z65EVM-001

Страница 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...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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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