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bq27x10EVM Circuit Module Physical Layouts

Figure 5. bq27x10EVM Layer 2 Layout

SLUU259 – October 2006

bq27x10EVM Single-Cell Battery Fuel Gauge

7

Evaluation Module

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Содержание bq27x10EVM

Страница 1: ...e Setup 10 8 Operation 11 List of Figures 1 bq27x10EVM Schematic 4 2 bq27x10EVM Topside Assembly 5 3 bq27x10EVM Silkscreen 5 4 bq27x10EVM Layer 1 Layout 6 5 bq27x10EVM Layer 2 Layout 7 6 bq27x10EVM Layer 3 Layout 8 7 bq27x10EVM Layer 4 Layout 8 8 bq27x10EVM Circuit Module Connection to Cells and System Load Charger 10 9 Initial Register Screen 11 10 EEPROM Screen 12 11 Pro Screen 14 12 Calibration...

Страница 2: ...ogram the on chip configuration EEPROM and evaluate the functions of the bq27x10 under different charge and discharge conditions Complete evaluation system for the bq27x10 battery gas gauge Populated circuit module for quick setup PC software and interface board for easy evaluation Software allows EEPROM programming and data logging for system analysis 1 bq27x10EVM circuit module with sense resist...

Страница 3: ...the bq27x10 for the application by programming the EEPROM Contacts on the circuit module provide direct connection to the cell J1 1 J2 2 and the serial communications port J1 3 The system load and charger connect across J1 1 and J2 1 Table 2 Test Points TEST POINT SIGNAL NAME DESCRIPTION J1 1 PACK Cell positive pack positive J1 2 SCL Used only with bq27210 as the I2C Clock line J1 3 SDA HDQ Single...

Страница 4: ...Layouts bq27x10EVM Circuit Module Schematic Figure 1 bq27x10EVM Schematic Figure 2 through Figure 7 show the PCB layers and assembly drawing for the bq27x10EVM circuit module bq27x10EVM Single Cell Battery Fuel Gauge 4 SLUU259 October 2006 Evaluation Module Submit Documentation Feedback ...

Страница 5: ...10EVM Circuit Module Physical Layouts Figure 2 bq27x10EVM Topside Assembly Figure 3 bq27x10EVM Silkscreen SLUU259 October 2006 bq27x10EVM Single Cell Battery Fuel Gauge 5 Evaluation Module Submit Documentation Feedback ...

Страница 6: ...www ti com bq27x10EVM Circuit Module Physical Layouts Figure 4 bq27x10EVM Layer 1 Layout 6 bq27x10EVM Single Cell Battery Fuel Gauge SLUU259 October 2006 Evaluation Module Submit Documentation Feedback ...

Страница 7: ...www ti com bq27x10EVM Circuit Module Physical Layouts Figure 5 bq27x10EVM Layer 2 Layout SLUU259 October 2006 bq27x10EVM Single Cell Battery Fuel Gauge 7 Evaluation Module Submit Documentation Feedback ...

Страница 8: ... List of Materials Figure 6 bq27x10EVM Layer 3 Layout Figure 7 bq27x10EVM Layer 4 Layout Table 3 contains the list of materials required for the bq27x10EVM circuit module 8 bq27x10EVM Single Cell Battery Fuel Gauge SLUU259 October 2006 Evaluation Module Submit Documentation Feedback ...

Страница 9: ...00 Ω 1 16 W 5 402 Std Std R9 R10 R17 R18 0 2 Resistor chip 15 kΩ 1 16 W 5 603 Std Std R15 1 1 Resisitor chip 10kΩ 1 16 W 5 402 Std Std R8 1 1 Resistor chip 0 02 Ω 0 25 W 1 1206 Vishay WSL1206 U1 1 0 Single cell Li Ion Polymer gas gauge device QFN Texas bq27010DRK Instruments U1 0 1 Single cell Li Ion Polymer gas gauge device QFN Texas bq27210DRK Instruments J1 J3 2 2 Terminal blocks 3 position OST...

Страница 10: ...ree hardware components to the bq27x10EVM are The bq27x10EVM circuit module The PC interface board EV2300 The PC Figure 8 shows how to connect the bq27x10EVM circuit module to a Li ion cell and the system load charger Figure 8 bq27x10EVM Circuit Module Connection to Cells and System Load Charger The following steps configure the hardware for interface to the PC 1 Connect colored wires that are inc...

Страница 11: ...re when it is not in use to avoid contacts with other connections such as ground Run the program from the Start Programs Texas Instruments bq27X10 Battery Gas Gauge menu sequence The software defaults to the PC USB port for communication If the EV2300 is connected to USB port the program should load and display the initial data screen If it is the first time that the program is used then the user ...

Страница 12: ...reen This value is used by the PC program to convert the bq27x10 data set to engineering units A check mark in the display engineering units box displays the data set in engineering units No check mark displays the data set just as the bq27x10 calculates them i e in units of 3 57 µVh counts Each bq27x10 is programmed at the factory with default values in the EEPROM The values in EEPROM should be c...

Страница 13: ...elect the type of communication protocol HDQ or I2C or select the type of communication interface EV2300 or EV2200 With the bq27x10 several commands are performed by setting the appropriate bit in the MODE register and then writing 0xA9 or 0x56 into address 0x00 With the Commands menu of the EVSW the user may perform the commands automatically Among the selections are WRTNAC If a user wants to wri...

Страница 14: ...er Current includes all 8 bits of this register represented in hexadecimal numbers If either the DCFIX or TCFIX bits in the Pack Configuration EEPROM register are set then the DCOMP or TCOMPis illustrated as Customer ID accordingly For example if DCFIX bit is set then the DCOMP register is set as a customer ID and the default discharge rate compensation is used by the bq27x10 regardless of the con...

Страница 15: ...igure 12 Calibration Screen The bq27x10 registers can be logged by using the data log function To log the data and create a log file 1 Select the registers to log by clicking on the corresponding Log box in each row of data 2 Select File Start Data Log from the pulldown menu 3 Enter the name of the data log file in the Name Datalog File box 4 Click on the Open button 5 To stop the data logging sel...

Страница 16: ...03 11 3 33 10 PM 110 3603 1075 74 1033 34 12 3 33 20 PM 120 3754 1075 74 1033 34 13 3 33 30 PM 130 3762 1075 74 1033 34 14 3 33 40 PM 140 3765 1075 74 1033 34 15 3 33 50 PM 150 3767 1075 74 1033 34 16 3 34 00 PM 160 3622 1073 91 1032 73 17 3 34 10 PM 170 3609 1072 69 1032 73 18 3 34 20 PM 180 3598 1070 25 1032 73 19 3 34 30 PM 190 3593 1065 52 1032 73 20 3 34 40 PM 200 3695 1065 52 1032 73 21 3 34...

Страница 17: ...ABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES TI is currently dealing with various customers for products and therefore our arrangement with the user will not be 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 specifica...

Страница 18: ...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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