BQ76920EVM with the EV2300 Issues
Hello,We're having a great deal of trouble trying to program the BQ76920EVM with the EV2300. The trouble shooting I can find online recommends using the EV2400 for this EVM. Issues:— EV2300 doesn’t...
View Articlebq27542 communication failed , after changing form I2C to HDQ
change mode from i2c to HDQ on battery management studio in bq27542 EVM with EV2400.but after changing mode,comunication failed, no auto device detection,
View ArticleWriting data flash class 104 on BQ34Z100-G1
I can't change the content of the class 104 (calibration data) in data flash of BQ34Z100-G1.I can write to others classes in data flash. Write data, write checksum, read checksum and check if it is...
View ArticleDFI read
Hi,We need to read the dfi file from dataflash of BQ27510-G3 chip.Where we get the source code for this?Please help.Regards,Anoop
View ArticleDFI read
Hi,We need to read the dfi file from dataflash of BQ27510-G3 chip.Where we get the source code for this?Please help.Regards,Anoop
View ArticleBQ20Z45-R1 firmware referenced in TI Analog Applications Journal article...
Hi,I just read the TI AAJ article "Improved LiFePO4 cell balancing in battery-backup systems with an Impedance Track™ fuel gauge" (slyt528). The article was very interesting and is relevant to my 4S...
View Articlebq34z100-G1 Chemistry ID
We are evaluating the bq34z100-G1 Gas Gauge using the bq34z100EVM board and the Battery Management Studio. Our plan is to use this gauge to monitor a Lead-Acid Battery. The battery we are using is a...
View ArticleBQ27510-G3 Locking up during flash update
Hello,I am going to small scale production with BQ27510-G3. I have created a golden image using the Battery Management Studio in all three extensions (bqfs, dffs and srec).However, whenever I try...
View ArticleBQ4050 and BQ34Z100-G1: which one is the most suitable for my application?
Dear all,I come again here before starting my design. I already gave valuable answers to my questions and I would like to thank you again.So, I will start designing a module with a 1-cell Li-ion (maybe...
View ArticleBQ27532: cannot update flash memory and read Voltage and external Temperature
Good day.We have BQ27532 in our project. It works when using evaluation board (BQ27532EVM-656).But in real application, on the developed PCB we have got several problems:- cannot update flash memory;-...
View Article[bq78350] Minimizing Leakage Current When Protection FETs are Off
Refer to slua726a - Using bq78350. We are using Fig 10 to minimize the leakage current. When CHG/DSG pin is low to turn on the FET, host system cannot communicate with gauge. I am confused why there is...
View ArticleBQ3060 EVM cell balance
I am using the EVM for BQ3060, and the top cell balance mosfet is partly switched on all the time. The gate-source voltage is 1V, and it continues to draw just over 20mA at all times, charging,...
View ArticleProduction flow with bqMultistation tester - when IT must be enabled?
HelloI am trying to produce some batteries (BQ20Z95) using bqMTester software. Firstly I've prepared golden data flash image file, and now I am configuring and calibrating batteries by means of...
View ArticleBattery Management-Gas Gauge
We try to obtain a information from a Li-ion Battery PackLike Cycle been use, Capacity,current and Voltage. and able obtain back the information. from Computer or readerplease recommend which...
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BQ78350_R1 Issues
I am using the BQ76940 and BQ78350 on a custom PCB to measure the voltages of 15 series cells. I have successfully programmed the firmware to the fuel gauge, and when I read word '09', it results in...
View ArticleCommunicating to a bq2083
Hi,I'm attempting to communicate to a bq2083-V1P3 fuel gauge. I have installed bq2083-bq2085 EVSW Install v2p5 and am using a EV2300 on a Windows XP machine. The SCL/SDA lines on the battery are pulled...
View Articlebq20z75 Design Energy calculation
Hi,When calculating the Design Energy using the bq20z75, do you divide by 10?For example:Design Capacity X # of series cells X nominal cell voltage2800 X 4 X 3.7 = 41440......do you then divide by 10...
View ArticleInternal Balancing bq30z55
Hello,I like to know the level of the signal that drives the gates of internal MOSFETS in internal Call Balancing.I like to know the voltage peak, frequency of the burst signals, and the duty...
View ArticleBQ78350 and BQ76940 reading only 3 cell out of 14, when I set it to read 14...
I have a BMS setup using BQ76940 and BQ78350. When I star the system and programmed the default firmware it starts fine and shows voltage of 3 cell which is default setup. Once I set the AFE cell map...
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