BQ33100 can not program in address 0x41C5
Hi,I program BQ33100 by microcontroller. And reference to the Doc. I almost have done unless one byte.When I write data flash image to BQ33100 and revise the data in address 0X41C5(iROW = 14), the...
View ArticleCoulomb counter/ fuel gauge for lithium thionyl chloride cells
Can the BQ2052 evaluation module be used with lithium thionyl chloride cells? Does TI offer fuel gauge ICs or evaluation kits specifically for this chemistry?I cannot use the ADC to indicate to the...
View Articlehow to start with ev 2400 and bq40z60 evm using bqstudio v1.3.47
i am a student and beginner with battery management i have bq40z60 evm board from ti and ev2400 interface board . i installed bq studio v 1.3.47 on windows 10 pc and updated ev2400 firmware .now when i...
View ArticleBQ34Z100-G1 Step-by-Step Design
Hi,I have a question regarding section 9.2.2.1.4 of the BQ34Z100-G1 datasheet. I am using a 1 mohm current sense resistor in my design, should I enter the value "1" into both CC Gain and CC delta...
View ArticleRequest for BQ33100 EVM software source code
Hello TII need to implement a mass production software application that uses most of the BQ33100 EVM software features like programing the GG file, read SBS data and register/flag checking using...
View Articlebq27520EVM evaulation board drawing 1-2mA off battery. Unable to relax battery.
I am having the issue that the EVM I am using is drawing 1-2mA off the battery when connected.The only connections I can see which could be doing this are the BAT input pin of the bq27520.I am not...
View Articlebq27542-G1 - Hardware config of TS pin when external thermistor unused
Hello,If the external thermistor feature of bq27542-G1 is not being used (set to read from the internal temp sensor instead), how should the TS pin be treated?I've seen recommendations to pull TS to...
View Articlebq40z50-r1 with charger bq24725a
Hi,I would like to know if the bq40z50 gauge can communicate with the bq24725A charger without having a host connected on on the bus.The idea is to have a smart battery pack containing battery, gauge,...
View ArticleUSB to GPIO does not controls the BQ78PL116
Hi,My customer purchased the new "USB to GPIO" to control the BQ78PL116 by the BQWizard 3.But it does not controls the BQ78PL116.The BQ78PL116 can't be selected on IC selecting menu of GUI(BQWizard...
View Articleswitch on/off BQ76940 with BQ78350
hello everybody,i want to realize a bms with an bq76940 and bq78350 for a battery powered device. i also want to use an µC witch should be connected with the bq78350 via sm-bus to use some data from...
View Articlebq40z50-R1: bqStudio vs TRM Data Flash addresses
I found this issue when I was trying to verify that -R1 had fixed the Manufacture Date bug: e2e.ti.com/.../1465714The TRM for both the -R0 and -R1 list a Data Flash address of 0x4067 for the...
View ArticleEV2400 pullup manage for bq34z100
Hello, We developed a board with Bq34z100 we thought that the EV2400 used pull up for i2c but not our ev2400. When we saw shematics in the datasheet we understood that the pullup must be managed but...
View ArticleBQ40Z40 Zener between VCC and PCHG
HiWhat the voltage of build in Zenner in parallel with 8k resistor on Pre-Charge Drive circuit?Best regards
View ArticleBQ40Z60 - Reset FullChargeCapacity to DesignCapacity
There is a way to reset FullChargeCapacity value to Design Capacity value without discharge/charge cicle?thanks a lotPietro
View ArticleUnhappy with support from TI
I just want to take a moment to say how very unhappy my company has been with the level of support received from TI. We designed in the bq27530 / bq24160 gas gauge and charger combo into two different...
View ArticleCalibrating BQ78350 in bqStudio
Hello,I'm following the instructions in section 2.2.2 (Gauge Quick Start) of the bq769x0 EVM Quick Start Guide (SLVU925B). Everything was working fun up until Step 23, where I attempted to calibrate...
View Articlebq34z100G1 In field I2C firmware update and calibration without operating...
Dear Sir / Madam,We are using the bq34z100G1 gauge on our new UPS system which will enter production early this year.The main problem rises from the need to automatically field update (bq34z100) and...
View Articlebq40z50-R1 production
HiWe are starting the production of battery packs with the bq40z50-R1 chip and I have the following questions:- Is following slu743 is enough to program ALL the parameters, including the correct...
View ArticleBQ769x0 External Pull-down on CHG
Hello,I'm considering adding an external pull-down on the CHG output from the BQ76940 chip in order to provide a fast, strong turn-off on the charger FET. Will this damage the output from the BQ chip,...
View ArticleBQ34Z100-G1 Problems with communication and REG25 output
Hello, we are working on a new prototype and have had trouble communicating with the chip. We have tried a few different ones and have tried troubleshooting the design to find the problem. We are...
View Article