Battery Low% in Bq3060
Hello,Please explain me what is the importance of Battery Low% in bq3060. Why DOD at EDV2 should be initialized to (1-Battery_low%)*16384.RegardsSantosh
View ArticleGauge Studio
Hi,the Gauge Studio is not communicating with my gauge.I use:EV2300-002When I connect the Interface without the gauge.The Gauge Studio read: EV2300a Version: 3.1r.If I connect the gauge over I2C then...
View ArticleBQ3055 data flash access
Hi, I am having trouble accessing the data flash. Datasheet says it can be accessed by writing the row offset to 'manufacture access' and reading the entire row of 32 bytes from 'manufacture input'....
View ArticleBQ3050 Behaviour&Settings
Hello,We are currently designing an electronic board with a 4S1P Li-Ion battery pack and use a BQ3050 battery gauge. After many tests, we have tuned the gauge parameters (according to the file...
View ArticleBQ34Z100 new chemical ID?
Dear Sirs!Currently I am working with the evaluation module BQ34Z100EVM and EV2300.IFR 32650, 12V, 20Ah, LiFePO4, 3-cell battery pack of OPTIMUM BATTERY CO., LTD manufacture is applied. The board is...
View ArticleGenerating and using .bqfs and .dffs files for BQ27410 fuel gauge
Hi,We have used BQ27410 fuel gauge in our design. We have generated .dfi image using BQEasy. Now we are trying to flash it to our chip using host processor. As i understand, for that I need to generate...
View Articlebq78PL114 and LiFePO4
We designed 2 years ago a LiFePO4 battery pack (10Ah/3.2V/12 cell). We did several third party tests (CE, FCC, UL, UN tests) on it and got the correct approvals.However, under some occasions we noticed...
View ArticleBQ20z75, CHG and PCHG FET are off
One of our products contains a 4-cell-in-serie battery pack including a BQ20z75 + TI suggested FET protection circuitry.The BQ20z75 is configured to make the pack acts as non-removable. The Design...
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How to turn off OVER LOAD function about bq29312a?
hi. I'm KIMI have a question about bq29312a.I 'm using bq2084+bq29312a chipset. But I don't want to use DISCHARGE OVER LOAD function of bq29312a. Is it possible to turn off with bq29312a?The below...
View ArticlebqEASY Impedance Track Algorithm
Hi,I have been trying to perform the Impedance Track learning cycles on my bq20z65EVM. I charged the pack to full and clicked automate steps 2-4 in bqEASY. While it is waiting to stabilize (2 hours)...
View ArticleVoltage calibration problems in bqEVSW using bq20z65EVM
Hi, I have the bq20z65EVM gas gauge that I am trying to set up with my cells. I am using the bqEVSW software to calibrate and the bqEASY to set all of the parameters. I am having a problem while trying...
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BQ20z45R1 - FET's are open permanently
Hi,I nedto run BQeasy on my BQ20z45R1 EVM to prepare the Golden file, but the FET's are still open when I need to charge the 2s pack. In fact the FET's have been open from the start.Am I doing...
View ArticleDual-Cell LiFePo4 Balancer
Hi there,i am into designing an balancer curcuit for a Dual-Cell LiFePo4 series string. Because of verly limited space and low energy budget design in addition to only 600 load zycles a standalone IC...
View Articlebq77910A- Current Measurement resistor
I Have been working on bq77910A for my applications. During setting of current thresholds I set the OC discharge current threshold at 200 but actually the hardware operates the fet at 100A. I used 5...
View ArticleBQ3055 Battery Management and Charging
HI,Is there any formula or tools available to design the battery management BQ3055?What type of fuse to be used as in the Implementation circuit the fuse is given like a three pin type?What is the part...
View Articlebq34z100 with chemistry ID 0162
Good day!In a new project using bq34z100. There are a few things that I wanted to clarify.1. I need a .senc file with the chemistry ID 0162. Where can I get it?2. File .senc write to the .gg file or...
View Articlebq27500 error 772 during calibration
For a new batch of boards I wish to re-calibrate the bq27500-v130 for a modified pcb layout around the sense resistor.Using the EV2300 and the bq evaluation software (version 0.9.90) I can load the...
View ArticleBQ34Z100 and CHEM ID
I could use some help with the bq34Z100 integration. I have an EV2300 EVM Interface board and a bq34z100EVM board. The battery I am using is 855085-2S 7.4V 4000mAh Lithium Polymer pack that was...
View ArticleBq3060 failing to Set charge termination
Hi,I'm seeing some of my packs not set the FC flag (and set current to zero) even though the charge termination condition is clearly being met (ie. current less than taper and terminal voltage within...
View ArticleBQ34Z110 Does not operate as expected. Cannot optimise the gas guage for a...
HiI am trying to get the BQ34Z110 optimised for a 12V 1.2Ah lead acid battery. I have followed the "Design Steps" instructions on the datasheet to the letter several times but I am still getting...
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