Bq34z100-g
HiWe having a lot of questions about how to config aBq34z100-GWe have 2 battery pack in serie 90ah-12Volt (90.000mAmpsHour) and want to measure a load from 0 till 100Amps Rsens=1mohmHow do we sett...
View ArticleHaving trouble resetting/clearing a DFF (DataFlash Fault) permanent failure...
Hello all... I am dealing with a situation where I have a received some DFF failures. The document I have states that these faults can be cleared by sending the 0x2673 and 0x1712 ManufacturingAccess...
View ArticleDifferences between the BQ40z50 and BQ40z60 devices.
My customer has asked about the differences between the 40z50 and 40z60 devices. They were looking at the 40z50 first., but noticed that the 40z60 was released. I sent them the comparison from the web,...
View Articlebq40z60evm schematic
Hi,I am currently looking at the user guide named SLUUB71–November 2014, depending battery management (the file is attached)The circuit diagram in figure 17 respectively the bill of materials in table...
View ArticleBQ40Z50 wake up CHG only on communication pull up
Dear all,I encountered a phenomena were I cycle a battery pack with BQ40Z50 circuit.after a few cycles the pack will not accept charge after discharge step ends (after 30min rest).battery is in CUV...
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bq40z60 charging stops/current decreases
Hi,I am using the "bq40z60evm-578" board for charging four Li-Ion (3,7V/2600mAh) batteries (4s). I'm using bqstudio with the default settings except for the cell count and the capacitiy values. For...
View Articlebq76920
Hello,We need a OV and UV battery pack and each cell monitoring for 5 phosphate cells 3a each. bq76920 seems to fit this design.Please advice if we can use the scheme exactly as noted in the ic data...
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How to read or write data to BQ33100 through the SMBus
I use the STM32F103 to communicate with BQ33100 through the SMBus.And the STM32F103 print the data received from the BQ33100 to PC through the USART.Now,I have some questions below:1. I want to read...
View ArticleI can't locate a default .senc file for my bq34z950
I am following the steps to create my golden pack but I can't locate the default .senc file.Is this an out-dated method?For what it's worth, there aren't ANY senc files on my computer. - David
View ArticleBQ3050 CEDV settings f or Panasonic NCR18650B
I have a 4s1p setup using Panasonic's 3400mAH NCR18650B. Has anyone used these before with a BQ3050 that can provide the CEDV coefficients?
View ArticleBQ34Z110EVM optimization cycle
Hello,I am attempting to use the BQ34Z110EVM with bqEVSW to do SOC measurement on a 12V PbA battery. I've used batt chem 0802 and I've run through the calibration procedure in the calibration window of...
View ArticleEV3200 software and BQ30Z55 firmware
We bought the EV2300 with the Order Number: 577766.We need software to install the EV2300 and the firmware to update the component BQ30Z554.ThanksI found a manual for the software, but not the software...
View ArticleBQ40Z50 Battery status returns unknown error
Hi, We are working with Ganesh Team for Software development and we have MSP430F5338 in our board to work with Battery Pack Gas Gauge BQ40Z50. I am observing different behavior/response for battery...
View ArticleBQ27410 gauge not initializing after cmomand insert battery?
I'm able to communicate using I2C to the BQ27410. I can execute the control subcommands, like reading fw_version, control status etc.I'm unable to read voltage or flags.I'm issuing a bat_insert command...
View ArticleFuel gauge - how to manage sudden heavy load ? is special battery monitoring...
hello all , we are using our custom board with DM385 which is battery powered. we are facing an critical issue on battery monitoring side . on ideal state our board was consuming 0.44...
View ArticlePower consumption of BQ27621
Hi TI, I have a question about the power consumption of BQ27621: We created a test PCB with this gauge, necessary capacitors and 10 kOhm pull down resistor at BIN, after that we connected VBAT and GND...
View ArticleQuestions on BQ27421
Hi,I'm currently using a BQ27421 gas gauge in an embedded systems and for some reason when power is applied to the system it takes approximately 60 seconds for the Gauge to detect that the battery is...
View ArticleBqstudio looses connection with GDK
I am using BQ27GDK000EVM with Bqstudio.Everything works fine for a while when I connect the usb.I am able to see the GDK enumerate on the dashboard and can talk to the on board Gas Gauge.However...
View ArticleBQ40Z60EVM with the BQ294700
Good day Colleagues,Could you tell me, why the BQ294700 also used with the BQ40Z60 on BQ40Z60EVM? Am I right, the BQ40Z60 can't see overvoltage of the each cell?Thank you, Mike
View ArticleBQ3050 Cell Balancing
I have a 4S1P pack with 3400mAh 18650 batteries. I am trying to test the cell balancing feature. I noticed that most of the reference designs have a 100 Ohm resistor into the Vx pins of the BQ3050....
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