BQ34z110 optimization cycle
Mr. Thomas,Please find the attached .senc file.(The file extension is changed to .jpeg, since .senc cant be uploaded, please change the extension, sorry for the trouble)I am trying to optimize BQ, for...
View ArticleCell balancing for bq20z65
Hello,I have a 7.4V 7800mAh 2S3P 18650 Li-Ion soft battery pack and I want to add BQ20z65 for capacity measurements. Battery pack only has BAT+, 10kNTC and BAT- connector so my question is can BQ20z65...
View ArticleBQ27520-Ｇ4 System-Side Impedance Track™ Fuel Gauge With Integrated LDO -...
Hello,Can anybody provide programing specification - specification how to store customer's data to memory? We need implement programming on our device programmers.Thank you in advance.Frantisek
View ArticleClik here to view.
Bq20z65 Activation issue
HiFor a new product I'm including the bq20z65R1 to manage 2s LiPo 5300mA batteries.I made a simplified design, which have been tested on the Eval bord without problem:(Please visit the site to view...
View ArticleCalibrate battery with BQ34Z100PW
Hi,I've a problem with the calibration of my battery with the BQ34Z100PW.My battery specs:26.4V12 Ah 316.8WhThe problem is my capacity in the data ram isn't the same as the design capacity I programmed...
View ArticleBQ27510-G3 battery chemistry question
HiCan someone please advise on the type of Li Ion battery chemistry required to use this charger.I have an 1800mAH single cell LiCoO2 battery which I would like to use with this device, but i'm unsure...
View Articlebq27541V200 Data Flash with EVSW
I am using the EVSW V.0.9.88 to program bq27541V200 parts. When I open the DATA FLASH tab and look at subclass CONFIGURATION subclass DATA I see the locations as I expect to see based upon the data...
View ArticleClik here to view.
bq27531 - High current peaks on MLC Charging
I'm designing the supply adapter for our bq27531/bq24192 circuit and I'm a bit puzzled by the high current peaks at the beginning of the MLC charge cycles.As recorded by GaugeStudio, the current is...
View Articlebq34z100 startup time
Hi,I am trying to communicate with a bq34z100 with a mikrocontroller via i2c.Everything is working ok so far, there is however one strange behaviour.After I activate the board (set power supply to on)...
View ArticleCapacity estimation BQ20z65-R1
The capacity estimation does not function correct when the ambient temperature changes, remaining capacity and fullcharge capacity are only updated if the start capacity-estimation-command (0x21) is...
View ArticlechemID does't change in data flash in bqEASY bq27510-G2
i'm using bqEASY with bq27510-G2. Here's the steps1) put device in rom mode with - i2c command: 00, Data block: 000f2) program new .senc file, software indicated download was success3) power cycled...
View ArticleBQ27510-G2 lost yIFRowData
I lost yIFRowData to due my program error.I can send the DFI file to device but the process stop at Figure 10 of sluas449e.pdf. Can I resolve this or must replace device with new one?Thanks
View ArticleBQ27530-G1 Unable to read 0x74 (CHRGSTAT) I2C
Hello,I am trying to read command 0x74 on the BQ27530-G1. I am getting a NACK return when I do this and a repeatable sequence of values that do not make sense.I am able to read addresses 0x75 and...
View ArticlebqSingleSite Source Code
Hi, Where can I download the source code for the bqSingleSite tester program? I know it's not usually available through normal channels. I know it's old and not supported, but it contains EV2300...
View ArticleProgramming the bq27510-G1
Hi-I'm attempting to program a bq27510-G1 chip with new data.I've created .bqfs and .dffs files with flashstream and am attempting to program the .dffs file into a device. All goes well through the...
View ArticleIs bq3055 suitable for LiFEPO4 battery chemistry?
Hi,Is bq3055 suitable for LiFePO4 battery chemistry?Is there a better solution from TI for managing LiFePO4 batteries?Cheers
View ArticleBQ77910A and 2-wire solution
Hi everybody,I'm working on a protection design for Li-ion Titanate cells using a BQ77910A. I have some difficulties to understand which design to use for the charger detection. I know the...
View ArticleCharging LiPo batteries in parallel
Can I design 4 cells LiPo battery with 2 pairs in series while each pair having 2 cells in parallel? If yes, how do I used gas gauge there. All the gas gauge ICs have schematics only with cell in series.
View ArticleBQ34z100 SoC is decreasing to 94% in a week
Hello,I have BQ34Z100 with high capacity 4-cell LiFePO4 battery. I came through the learning cycle and Update Status is reached 06. I am charging the battery with automatic charger till 14.6 volt and...
View ArticleHow do you communicate with multiple batteries that are wired in series over...
How do you communicate with multiple batteries that are wired in series? The problem is that each SMBus ground is at a different voltage, so they cannot be connected together unless the SMBus is...
View Article