BQ34z100 and the JEITA Standards
Hello,I've been searching for the JEITA standards for my battery (so that I can load them into the bq34100z), but I can't seem to find them. I have an A123 Systems ALM12V7 which consists of two,...
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BQ27410 Data Error
Hi,I'm testing bq27410-G1 on my board.I'm monitoring gauging data using bq Evaluation Software.Bq27410 is connected with fully charged battery. (max voltage is 4.2V)Design capacity is 280mAh but I set...
View Articlebq27425-G2A / Can't enter sleep mode
Hi everyone,Our customer evaluating bq27425-G2A by using EVM. At first they performed learning cycle by setting FC Set% = -1, after that they set FC Set% = 100 and performed charging and discharging....
View ArticleHow to modify the value in the registers in the BQ34Z100
(1)I'm using I2C to communicate with the BQ34Z100,but When I try to modify the value in the registers ? such as "DesignCapacity" …… (2)how to modify the value in the Data Flash,for example, the "Design...
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Unseal Bq20z95
Hello,I currently work with the softwares BqMtester and the circuit Bq20z95When calibrating the BqMtester has sealed the circuit.Now what is normal, I can not read data from flash memory: I would...
View ArticleBQ3060 firmware
Hi All,Can someone tell me if there is a newer firmware version than 0.14 for the BQ3060?ThanksAnthony
View ArticleIs there an updated version of GaugeStudio for public download (newer than...
Hi,I was watching the demo video on the bq27421-G1 page, and in that video, the GaugeStudio software had a bunch more features on it. Features like "Parameter Q/A" and other tabs on the ribbon don't...
View ArticleBQ34Z110PWR Battery Conditioning & Calibration
I’m trying to train the BQ34Z110 on our 12V SLA battery; our capacity is over 25Ahr, and I can only source 1A or so from our board, so the cycles take a while. I believe the crux of our issue is that...
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PFIN fault in bq20z75
Hi,I have encountered PFIN fault after I failed to program the .dfi file before i prepared to perform learn cycle for Panasonic battery pack. I had sent SMBus Command: 00, Word 1: 2673, Word 2: 1712 to...
View ArticleGeneral BQ27425 I2C question
Hello,I have a basic question about the BQ27425: what sort of interface are we talking about, in terms of how can we send to and receive from the device?http://www.ti.com/product/bq27425-g1If it means...
View ArticleThe SOC is always 0
I'm using I2C to communicate with the BQ34Z100，I have 2 questions:(1)how to modify the Chem_ID，what‘s the register which is used to store the value?(2)the SOC is always 0,I want to kown what's factors...
View ArticleBq77910A stacking with bq34z100 for fuel gauging
Hi,I have worked on bq77910A upto 10 cells. Now I have to work on a battery System 48V/100A battery pack. Kindly provide a design which having two bq77910A stackable & bq34z100 for fuel...
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Question about REGIN and REG25 of BQ27410
Dear TIer,I have one question about BQ27410.One of my customer is using BQ27410 as below. She is not using the integrated LDO, and using external LDO for power supply to BQ27410. Both REGIN and REG25...
View ArticleWriting problem of BQ27410.
Hi.I have a question about writing data flash.I wrote .gg file I made to bq27410 using bqEVSW GUI on failure board.Writing was successful except for twofactors.Only two factors (CC delata and CC...
View ArticleTwo Li-ion Cells Primary Protection IC
Dear SirI am working on project in which I require a protection circuit for my 2s battery and for that I require a Small Size circuit .I am interested in UCC-3911 but its under voltage is very low...
View ArticleCan I set above 32Ahr in Qmax cell 0 with BQ34Z100EVM?
hello. I am evaluating BQ34Z100EVM board with Li-ion 29.4V49400mAh.I saw text in manual thatSupports Battery Capacities Above 65 Ahr.But, I can't set value abvoe 32Ah in full charge capacity.How to...
View ArticleBQ29200 - Cell Balancing Circuit
Hi,I am planning to use BQ29200 mainly as a cell balancing chip for a BMS of 2-series Li cells. I am using another IC (Maxim's DS2777) as the battery monitor, gas gauge and protection. Will there be...
View ArticleBQ34Z100 Manufacturer Date format
hi,Im using BQ2060A fuel guage in my battery. its manufacturer date format is (year – 1980) × 512 + month × 32 + dayas per datasheet. Currently i thought of using BQ34Z100 in which the manufacturer...
View ArticleBQ34Z100 SoC dropping to zero below 15C
I have a a BQ34Z100 connected to a single cell LiFePO 26650 using chem type 420. If the ambient temperature drops below approximately 15C the SoC drops to zero. Once the temperature returns above 20C...
View Articlebq34z100 senc file download
I have been playing around with the PWR111 (bq34z100) gas gauge demo board and I believe I have gotten the internal cycle counters out of sync. Where can I download a default senc file to put the chip...
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