bq40z50 Device Number, Version and Build Number
Assuming Device Type (0x0001 command) and Device Number (contained in result of 0x0002 command) are the same, there is a discrepancy in the results of these two commands with respect to byte order:...
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Problem calibrating pack voltage for BQ40z60
I measured the VSYS voltage with respect to PGND for the pack voltage but when I press calibrateI get the following error:
View Articlebq40z50 No communication with bqStudio after firmware update
HelloI have some issues with the firmware update of an bq40z50. I did the learning cycle and export the Srec-file in order to update another 40 samples.I select the Srec-file (which is located on a...
View ArticleBQ40Z50RSMT production testing.
What Hardware and software is required to test the BQ40Z50RSMT using your SLUA734A Application Report dated March 15, 2015?
View ArticleBQ40Z60 EVM default charging voltages
In the EVM default configuration I noticed that the Standard Temp Charging Voltages are set to 4200mV and the Recommended Temp Voltages are 4100mV. Is this normal for LiIon charging voltage to have...
View ArticleDedicated battery monitor board
Hi.I am recently just a student in Electronic field. I have experience in PCB design with Diptrace software. This is my first time doing battery management. I intend to design a PCB board with 5 bar...
View ArticleSmbus (0x3c) command to bq20z45 reading 0V from battery cell no.4 even though...
HiI have a bq20z45 batterry chip hooked up to four cell batteries each at little over 3 V. Correct voltage is read across smbus for the first three cells with command (0x3f, 0x3e, 0x3d) but the fourth...
View Articlebq20z75 SMBus delay of 8 mS after coming out of sleep mode?
When coming out of sleep mode we query a dozen parameters via the SMBus within the first 100 milli seconds.Usually they proceed without any clock stretching with a 60 uS delay between each...
View ArticleBQ78350 Charging Capabilities?
After skimming through the datasheet for the BQ78350 fuel gauge it mentions that it supports battery charging. I am trying to figure out if I need to add an addition IC like the BQ2461x series in order...
View ArticleBQ40Z60 Charging Capabilities?
The BQ40Z60 is listed under Gas Gauges but it also seems like it doesn't need an external charger IC based on the datasheet. Even so, I can't really find much on the current capabilities of the BQ40Z60...
View ArticleHow to update battery chemistry in bqstudio
In the bqstudio software, a method to update the battery chemistry is described. How do I get the zip file with the updated information.
View Articlebq40z60 - What is the proper way to terminate discharge.
I would like to terminate discharge at a cell voltage of 3000mV or pack voltage of 6000mV. FD and TD Flags get set at the correct levels but continues to discharge until I get safety status CUV of...
View ArticleBattery gas gauge - Disconnect battery but store SoC
Hi,I'm designing an application in which i need to gauge a HV battery for a light electric vehicle.My setup disconnects the battery once the equipment is powered off. I have standby power available to...
View ArticleBQ34Z651 - BQ Gas Gauge Evaluation Software files
I have a BQ34Z651 IC, and the Eval software is not connecting correctly. I keep getting a notice that the connected device does not match the selected on, or something along those lines. When I try and...
View ArticleHow to successfully apply the bq40z60 without the dc-dc part?
Hi All:My term recently needs to use the bq40z60 on a battery-pcb, but we have little experience in the DC-DC convertor so we want to remove this block. So I want to ask how could we successfuly lay...
View Articlebq27210 production tool?
Dear all,I'm using the BQ27210 , and also the NRND bq27200 (because of legacy production we cannot replace).I saw that there is "Test System for BQ27000 BQ27200 Based Circuit Boards"but there are no...
View ArticlebqStudio config for bq27530-G1
Dear Ti, Is possible to send me config file for bq27530-G1 to allow me use bqStudio with this gauge? Now I have to use bqeasy+gauge studio which is not very good workflow. If you can send me config...
View ArticleBQ40z60 EVM charging voltage feedback tolerance issues.
After trying to set the charging voltage for a 2S2P to 8400mV to within 100mV (50mV per cell) doesn't seem likely without some type of trimming. Adding up worst case using 1% resistors and the 2% VFB...
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Chemistry Selection using bqStudio failing
Hello,I'm a new user of the battery management studio software with a EV2300 and a bq34z1xxEVM.I am trying to configure it for a lead acid chemistry.I have two issues:1) When I boot the bqstudio...
View ArticleBq40z60 & EVM2300 System Load
In the document sluub71 page 4 it shows that there is a system load between VSYS and PGND. If we are testing the charger with the EVM2300 is it required to have a system drawing power as well? It...
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