BQ20Z95 , short circuit issue
Hi Team,We are using the BQ20Z95 in our battery pack design as below; Battery Design Configuration : 4 Series Non Removable (NR=1) Sense Resistor =10 mOhm...
View Articlebq27500 Flash Parameters Conversion & Write
Hello,I have a few questions regarding the data flash parameter conversions in the bq27500. I have already run the bqEasy process and obtained the new, updated values from the entire process. Because...
View Articlebqeasy wizard
Hi there.I have been using the bqeasy wizard v0.9.86 for the bq20z95 and have found strange results for setting the CUV threshold. I am building a three cell pack with LiFePO4 cells and specify 2000mV...
View ArticleClik here to view.
GaugeStudio Software Missing Plugins
Hello,I'm trying to create a golden .dfi file for a bq27501. I have had simply too much trouble using the bqEasy tool and think it's time to move on to something that seems a little more promising. The...
View Articlebq34z110
I am attempting to use the bq34z110 for a Powersonic PS-12260 Sealed Lead Acid battery, AGM type. It is the 12v(6 cell) 26 Amp hour version. See attached file. This looks to be well within the specs...
View ArticleBQ20Z90 over current setting enquiry
Hi,I have a 4s2p battery pack and would like to set its OC Dsg at:OC Dsg - 40A (1st), 80A (2nd), 120A (3rd)OC Dsg Time - 100ms (1st), 10ms (2nd) , 100us (3rd)Is it possible to manipulate the sense...
View ArticleQuestion for BQ34z100
Hi TI teamI have some questions about BQ34z100I'm using HDQ mode for productionI finished making gg file. But, it doesn't show the right values without calibrating. Hence, I have to calibrate with I2C...
View ArticleBQ34Z100 ChemID and Design Energy Settings
Hello,I am configuring a bq34z100 to provide fuel gauging for a large Lithium pack made up of 7S16P Sanyo UR18650FM cells, the pack is nominally 25.9v, 40Ah, and 1078Wh (154Wh/series level). I am...
View ArticleClik here to view.
No communication with EVM Gas gauge could be established (bq34z100EVM and...
Hi.I have simply installed the bq34z100 evaluation SW ("bqEVSW") and the corresponding 32-bit driver for my windows 7 (and resterted my PC). Then I have connected my bq34z100 evaluation module...
View Articlebq34z100 State of Charge showing wrong
Hello,We are using Li ion 2 cell battery with max 8.4 V and 3400 mAh. In my application minimum battery voltage is 6 V.So the range is 6V-8.4V. How can I set the limit for minimum and maximum voltage...
View Articlebq20zXX dfi programming - data erase - BootROM mode
Hello, I noticed the following:In the VB6 sample code TI is suggesting to erase all data rows in pairs with the 0x11 command.I logged the actual I2C communication and found that TI EV2300 with bq...
View Articlebq34z110 Chemistry ID for G & Yu EB-100 Lead Acid battery.
We are planning to use the bq34z110 for G & Yu EB-100 Lead Acid battery.But there is no Chemistry ID for G & Yu EB-100 Lead Acid battery.We have read Application Report for Chemistry ID...
View ArticleGas gauge algorithm
Is there any document that present the algorithm of voltage based, coulomb counting?
View ArticleDual Battery Charger and Hotswapping
Hello.In our application we are using two dual cell lithium ion batteries (8.2V).We need to be able to charge each battery with a current of 4A.We need seamless switching between the two batteries....
View Articlebq27501 Measurement of Current Negative
Hello,I have recently gone through an entire bqEasy calibration process to produce a .dfi file that I am happy with as it works on a bq27501 EVM. I then used FlashStream.exe to create .bqfs and .dffs...
View ArticleThermistor shared between bq34z100 and bq77908A
On the bottom of page 28 in the datasheet of bq77908A there is a paragraph that to me seems to indicate that bq77908A can share its thermistor with another chip. Is this correct? In that case, does the...
View ArticleCreating a DFI from golden bq34z100
Good Morning to All!I am trying to create a DFI from a bq34z100 and not had much success. bqEVSW has no problems over the EV2300 I2C port. Going to Production With the bq34z1xx (SLUA665) says to use...
View ArticleClik here to view.
cannot change data flash on BQ20Z95 GUI
Dear all,sorry if this has been answered before, I can't seem to find the answer.I'm trying to change a dataflash parameter on a BQ20z95 board I once used for a different purpose.I verified that it is...
View Articlebq76920: Lowest practical sense resistor value?
Hello,We have an application for the bq76920 and bq76930. The discharge current level varies from about 5A - 35A (continuous) with pulses of up to 200A for one second and up to 400A for 20-40...
View ArticleProblems Configuring the BQ34Z110
Dear TII have some problems configuring the device,When I open the Evaluation software the Bq34 is found and the sofware opens up,in the left coner the sofware writes "Communication OK",However see...
View Article