Problem with BQ3060, ESD?
Hello everyone.Yesterday I let battery(57,4Ah Li-ion with bq3060 integrated in batterypack) to discharge to lowest voltage it can. Today I wanted to see the accurate voltage with EV2300, but got and...
View ArticleData Flash Failure on BQ20Z45
We observed already on two of our BQ20Z45 equipped batteries a Data Flash Failure (DFF). Unfortunately, this happend in the field after the batteries were already working properly. So the batteries...
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30Z55 feedback PEC wrong
the MCU send any command to 30Z55,the feedback date are correct but the PEC value always wrong .like the picture shows :if you have any suggestion or know the root problem please let me know .here is...
View ArticleBQ2014 DONE Pin Specification
Dear, Sir.My custoimer already started system mass-production applying BQ2014. They are facing several % system field failure which is related to the device. DONE pin is pull-down to Vss by 220kOHM...
View Articlebq34z100-g1 big drop of remaining capacity
Dear all,I use several bq34z100-g1 chips now and I find one of them acting abnormally. When discharging, the remaining capacity keeps dropping. However, the remaining capacity stop dropping as it...
View ArticleAvailability of older versions of bqEVSW for EV2300?
I have a product containing a b27500-v130 and was able to carry out development work on it using bqEVSW v0.9.59. A more recent version of bqEVSW that I have tried ( 0.9.90 ) prevents me from performing...
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Battery Management Studio version 1.3.45 errro in Chemistry tab
good day everyone, I'm new to this software Battery Management Studio version 1.3.45. I have my EV2300, EVM (PWR111 rev. B) and Boston Power Swing 5300 battery. I start install and load bqstudio...
View ArticleGauging Parameter Calculator / NumCellSeries setting
Hi,Please let me ask about NumCellSeries setting at GPC. I know that you have following three tool.Chemical ID Selection ToolGPC Golden GG Maker ToolGolden GG Maker and Resistance Temperature...
View Articlebq20z45/65 coulomb counter offset calibration
Hi,I am looking for some clarification on if/when these devices may perform re-calibrations of offset during normal operation.Also, do these devices perform offset calibration on entry into...
View ArticleBQ76930EVM design files
Hello Ti,Some time ago I was able to download the full design files of the BQ76930EVM, I believe we have lost the files in a clean system reinstall, we have purchased this EVM, but now it seems the...
View ArticleBQ76PL536A
Hi Folks,We're using the above part number (BQ76PL536A) for battery monitoring purpose. What we've observed is even after pushing the part to sleep mode the batteries are getting drained and later...
View ArticleExternal balancing BQ40Z60
Hello,I looking for information about external cell balancing in BQ40z60. I have 2S3P application and I want to set 50mA balancing current with external mosfets. But it is quite unclear for me how to...
View ArticleBq76940 extra balancing in Idle Mode
Hello community,is there any possibility to balance my batterypack (with bq76940 and bq78350) after finishing the charging proceedure?I use a LiFePo4 Pack and balancing is just really happening at the...
View ArticleBQ27541-G1 Programming
I am working on a design containing a BQ27541-G1 Fuel Gauge. (I realize that this part is not recommended for new designs, but the customer chose this part because of a companion product with the same...
View ArticleCannot UNSEAL bq27532
Good day.I have sealed my fuel gauge and cannot unseal it back.I use Unseal Key 0 and Unseal Key 1, but in vain.Is there any way to unseal it?Is there any way to rest all of device to the default state...
View ArticleBQ-27441 : Updating Design capacity using I2C programming doesn't change it
Dear Forum, I am using a BQ27441 G1B, fuel gauge on the EVM. I also have a EV2400 interface adapter, but for our purposes we need to operate the board programmatically. So I have connected it to a...
View Articlebq40z60 not responding (no ack) to EV2300/bqStudio SMB commands on custom PCB
Hello, people smarter than I!My bq40z60 is now soldered to a custom PCB. I have followed the Setup Guide in the EVM datasheet (sluub71) and tried everything I could in bqStudio to get it working. My...
View ArticleBQ27425 I2C to Universal USB adapter
Hi,Can Anyone help us for connection details (Pin details) from EVM of BQ27425 I2C to Universal USB adapter? We have 4 Wires coming out of EVM and USB adapter has 10Pin FRC. We followed user guide to...
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the feedback PEC value from 30Z55 are not correct
the MCU send any command to 30Z55,the feedback date are correct but the PEC value always wrong .like the picture shows :if you have any suggestion or know the root problem please let me know .here is...
View ArticleBQ34Z110 I2C - How to write with read-only command.
Hi. Bq34z110 I2C- How to write with read-only command????I would like to know how to write in read-only command(=PackConfiguration).※ PackConfiguration(): 0x3a, 0x3bThis Read-Word function allows the...
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