Texas Instruments BQ27620 Скачать руководство пользователя страница 10

Operation

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The bq27620 EVSW provides a logging function which logs the values that were last scanned by EVSW.
To enable this function, select the Start Logging button; this causes the Keep Scanning button to be
selected. When logging is stopped, the Keep Scanning button is still selected and has to be manually
unchecked.

The logging intervals are specified under the | Options | menu with the maximum value of 65,535 ms. The
Log interval cannot be smaller than the scan interval because this results in the same value being logged
at least twice.

Figure 7. DataRAM Screen

This screen (

Figure 2

shows the RAM data set. Additional Flag and Status data can be viewed at the

bottom of the DataRAM screen.

Dragging the splitter bar (line that separates the Flags/Status data from Data Ram register values)
changes the height of the Flags/Status Data display. Selecting | View |, then | Auto Arrange | returns the
splitter bar to its original location.

8.2

Setting Programmable bq27620 Options

The bq27620 data flash comes configured per the default settings detailed in the bq27620 data sheet.
Ensure that the settings are correctly changed to match the pack and application for the bq27620 solution
being evaluated.

IMPORTANT: The correct setting of these options is essential to get the best performance. The settings
can be configured using the Data Flash screen (

Figure 8

).

10

bq27620 EVM: Single-Cell Impedance Track Technology

SLUU655

October 2011

Submit Documentation Feedback

Copyright

©

2011, Texas Instruments Incorporated

Содержание BQ27620

Страница 1: ...tures 2 1 1 Kit Contents 2 1 2 Ordering Information 2 2 bq27620 Based Circuit Module 3 2 1 Circuit Module Connections 3 2 2 Pin Description 3 3 bq27620 Circuit Module Schematic 3 3 1 Schematic 3 4 Cir...

Страница 2: ...sonal computer PC software and interface board for easy evaluation Software that allows data logging for system analysis Ability to upgrade to the latest firmware version by flash reprogramming 1 1 Ki...

Страница 3: ...CK Pack positive terminal PACK Pack negative terminal SDA I2C communication data line SCL I2C communication clock line VSS Signal return for communication line shared with charger and ground CHG LOAD...

Страница 4: ...terial www ti com Figure 1 bq27620EVM Layout Silk Screen Figure 2 bq27620EVM Layout Top Assembly 4 bq27620 EVM Single Cell Impedance Track Technology SLUU655 October 2011 Submit Documentation Feedback...

Страница 5: ...d Bill of Material Figure 3 bq27620EVM Layout Top Layer Figure 4 bq27620EVM Layout Bottom Layer 5 SLUU655 October 2011 bq27620 EVM Single Cell Impedance Track Technology Submit Documentation Feedback...

Страница 6: ...le 0 400 x 0 500 22 05 3041 Molex 2 J4 J9 PEC36SAAN Header Male 3 pin 100mil spacing 0 100 inch x 3 PEC36SAAN Sullins 1 R1 1 8M Resistor Chip 1 16 W 5 402 Std Std 2 R11 R12 10k Resistor Chip 1 16 W 5...

Страница 7: ...ysical Layout and Bill of Material 4 3 Schematic Figure 5 bq27620EVM Schematic 7 SLUU655 October 2011 bq27620 EVM Single Cell Impedance Track Technology Submit Documentation Feedback Copyright 2011 Te...

Страница 8: ...ts contents into a temporary directory 3 Open the software file that was downloaded from the TI Web site 4 Follow the instructions on screen until completing the software installation 5 Before startin...

Страница 9: ...tion details the operation of the bq27620 EVSW software 8 1 Starting the Program Run bq27620 EVSW from the Start Programs Texas Instruments bq Evaluation Software menu sequence The DataRAM screen Figu...

Страница 10: ...be viewed at the bottom of the DataRAM screen Dragging the splitter bar line that separates the Flags Status data from Data Ram register values changes the height of the Flags Status Data display Sel...

Страница 11: ...and written to the bq27620 using the Write All button The module calibration data is also held in the bq27620 data flash The bq27620 allows for an automatic data flash export function similar to the D...

Страница 12: ...asured values for the types selected 3 Press the button to calibrate 9 2 Voltage Calibration 1 Measure the voltage across Pack and Pack 2 Type the voltage value in mV into Enter Actual Voltage 3 Press...

Страница 13: ...y of any of the following TI documents call the Texas Instruments Literature Response Center at 800 477 8924 or the Product Information Center PIC at 972 644 5580 When ordering identify this document...

Страница 14: ...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 engi...

Страница 15: ...or use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have...

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