bq40z50 - how to start
Hi,we will use the bq40z50 for an 2-Cell Li-Ion battery pack in an microcontroller driven device.I've read the thread "Introduction to Multi-Cell Gas Gauges" on top of this forum and some other...
View ArticleI don't create a file *.aux
I have to create a file *.aux, but when I try to create it, there are 69 defects of calculation of impedance. I have a bq78pl116 with 12S1P of LG18650MG1.(Please visit the site to view this file)
View ArticleBQ27410 writing to Design Capacity register
Hello,I am trying to modify the Design Capacity register over using the I2C pro screen with the EVM software. For some reason this does not work. Any ideas?Thanks,David
View ArticleGolden file and calibration
Hi All,Does calibration need to be repeated every time a new golden file (DFI) is written to a pack, or will it remain calibrated?Thank you,Jeremy.
View Articlebq40z50 high current application
I'm attempting to use a bq40z50 in a high current application (2-3C discharge). I did the IT calibration as described, with a C/5 discharge, and the gauge seems to be tracking capacity well at low...
View ArticleA problem with BQ studio 1.3.24 Build 2
Hello, After a Java update (JRE version 8u25), the BQ studio stopped working. Below is the log file:File created Sun Oct 26 12:47:42 2014Function Open Container at time Sun Oct 26 12:47:42 2014 String:...
View ArticleThe over charging current protection for bq77910A
Hi Sir,We would like to use the bq77910A for ebike battery pack application (24V/36V) and we checked it spec there was not a over charging current protection in it. Can you suggest us how to add the...
View ArticleBQ27741-G1 and BQ27742-G1 Differences
A "Compare products" web page for the BQ27741-G1 and BQ27742-G1 shows that the only difference between the two are the Min Capacity (500 mAh and 200 mAh respectively) and the Integrated Protector for...
View ArticleBQ34Z110 X10 scaling parameter (bit 7 of the Pack Configuration Register)...
Question 1) I am confused by the description given on page 21 of the BQ34Z110 data sheet (Dec 2012) regarding the X10 MODE.X10 MODEThe bq34z110 supports high current and high capacity batteries above...
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how can I read data from bq34z100 I2C_write,I2C_read ?
HiQuestion:Average currentvalue ofBQ34z100fromI2C - 1 bytedatareadsIteupnidaverywell.CURRENT: 0x0018 ->olryeogotoreadthe current valueReturns the instantaneous current measured by the...
View ArticleReadSMBusWord what is it doing
Hello, I am using the F28069 to try to communicate with the BQ3060. In all the documentation I see code referencing ReadSMBusWord(). I am unable to find what the I2C receive should look like. Does...
View ArticleQMAX Disqaulification Voltage for ChemID 400
I am using the Bq20z6x gauge. I am attaching aged cells to a new board. The learning cycle seems to go ok - I get 06 in Update Status. I am having difiiculty getting Update Status to go to 0E which...
View Articlebq34z100 I2C
Hi,I am looking to use the bq34z100 in order to monitor the SOC off a 6s LiPo pack. I don't plan to use an EVM because of packaging and weight issues as the entire setup needs to be on board a UAV. I...
View Articlebq27541-V200 enters Hibernate Mode in HDQ mode... Wakeup possible?
I have a number of battery packs which uses bq27541-V200 as the fuel gauge. The battery pack is sealed and have three terminal bat+, bat- and HDQ. Unfortunately, the manufacturer of the battery pack...
View Articlewrong soc in bq27410-g1
I'm using bq27410-g1 in a handheld device using single cell LiPo battery. The bq27410-g1 has been configured and calibrated using a EV2400 and bqEVSW v0.9.75. I use internal temperature sensor and...
View ArticleQuestions about the BQ2084-V143
Hi I have the BQ2084-V143 on the BQ2084EVM-001 board. I have some questions about the Data Flash section of the BQ2084-V143. I have downloaded the software for the bq2084 version 2.1.0. Why is it that...
View ArticleUnable to enable IT on the BQ34Z100
Dear all,I'm trying to run the optimization cycle with the BQ34Z100 and the BQ Evaluation Software.Under I2C PRO, i put I2C Command = 00 and Data Block = 0021 and i press the Write Button. As described...
View Articlebq27621-G1 problems with embedded battery
Hi,I have a single-cell LiIon (900mAh) battery application, where the battery is embedded (always connected) in the system. I am trying to start gas gauging using bq27621-G1, I am using the TI...
View Articlebq 27742 and mamagement studio software
Hello,I am having some difficulty with the new battery management studio interface and the evaluation board for the bq27742. I have created a flash file for a customer pack, but it has been a week...
View ArticleHow to eliminate DEVICE_XREADY bit
Hello.We are developing a new Project with the BQ76940 IC and sometimes, when the current flows and we are measuring CC current, the BQ76940 stops the FETs and give the DEVICE_XREADY fault...
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