charger connection
Hello,It is given in the technical document of bq77910A about charger connection, that whenever thhe charger attached to the system , I t is needed to aatach a resistor to CHGCTL pin to make the IC...
View Articleunable to complete learning cycle bq34z100 with primary battery
I have repeated this 5 times with same result, I hook up at CR123A battery to eval board. Before each trial I issue control 0041 and reload golden .gg file. I downloaded a golden .senc file but don't...
View ArticleBQ27510 - not entering ROM mode
Hello,I am using BQ27510, and at the moment I am having trouble getting it to enter ROM mode.I wrote to address 0x55: 0x00, 0x00, 0xF0. The command data is sent out successfully (it does not...
View ArticleBQ27410 flash memory checksum
Hello,I'm trying to read/update BQ27410 flash memory data. My code follows all PDFs found on the TI site, however, I cannot get correct checksum value.Here's an example:I write the following registers:...
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bq34z100 single cell inaccurate cell voltage reading
With the load that draws current bigger than 200mA out of a single cell LI-ION battery, the bq34z100 output inaccurate reading.With the load that is drawing about 600mA out of the battery:...
View ArticleBqEASY help with bq3060 BMS IC
hellowe are using the BMS IC bq3060 with the battery pack LiFePo4 6.4V ,9.6Ah. we have got this pack from third party vendor.after receiving this we have done deep discharge upto the cutoff voltage 5V....
View Articlebattery does not charge to full
when i perfom a full reset on bq208xx and bq20zxx batteries,the battery does not charge to full either using the laptop or an external poer sipply.what should i do?agail what is the effect of 100%max...
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How can change update status bit of bq34z100?
hi. I saw how to do pack gauging about bq34z100 at this forums.http://e2e.ti.com/support/power_management/battery_management/f/180/t/253751.aspx (last text)However, update status was not change to...
View ArticleBQ2040 or BQ34Z100/110 - application with 20-cell NiMH battery
I am working on a new design that requires monitoring of a 20-cell (~29V max) NiMH battery. We need to charge it, monitor the "fuel level" during discharge and trigger a recharge when it is low. We...
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 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...
View Articlehelp in bq20z95 shutdown mode
hi,can any one tell me how much time we need to connect the supply (ranging from 6V to 16.8V) PACK- and PACK+ terminal in order to make wakeup the EVM.we are using bq20z95 EVM. it is helpful for us if...
View ArticleNEED HELP IN bq20Z95 Connection to the load/charger
hiwe have got the bq20z95 EVM from Ti, we are using two series configuration. e have connected the battery succesfully to EVM. any one please help me to connect the load or charger to the...
View Articlebq20z45-R1 AFE_P bit is set by ESD test
My customer is doing ESD test.Then they observed that AFE_P bit in PFStatus register is set.Have you ever observed this phenomenon?And What is the cause that AFE_P bit is set?This phenomenon is avoided...
View Articlebq77908A bq77910 high current cell balancing
IN both bq77908A bq77910 datasheets, cell balancing section, it states to contact TI for the example.High-Current (Approximately 100-mA to 150-mA) Balancing Using External Power FETsIn this example,...
View ArticleBQ78412 questions
Hello,I had a couple questions regarding the bq78412 IC for SLA battery monitoring. First, If I have two 12V SLA batteries connected in series should I put a bq78412 chip for each one or can I just use...
View Articlebq77908 Connection Problem with USB-to-GPIO Adapter
Hi guys,I have some trouble connecting the bq77908 with the USB-to-GPIO Adapter to my computer (Firmware on Adapter: V2.0.19). Everytime I try to get a connection with the Evaluation or Programming...
View ArticleBQ28400 Evaluation Board construction
Hi,I am planning to build the BQ28400 diagram myself. It will be operating with 2-series Li ion cells and a microcontroller. The microcontroller will send the data to a PC wireless. Can the fuse in the...
View Articlehi please help for ev2300
HelloI am a new memberI've ev2300 instrumentI want to know how it is used in the programming the chip of the laptop batteryIs there any explanation that shows how to connect it to the laptop...
View ArticlePack shelf life issue - help in reducing quiescent current: BQ20Z65
We have had problems with 3S1P packs being depleted during shelf life storage due to the quiescent current of this part. Measurements show about 60uA quiescent current, which creates a less than 6mo...
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