No temperature dependent thresholds for "CUV Threshold" and "FD/TDA Set Volt...
I don't know how it is on other TI fuel gauge ICs but it is a pitty that on bq20z45/bq20z65 it is not possible to set temperature dependent thresholds for "CUV Threshold" and "FD/TDA Set Volt...
View ArticleBQ78PL116 OBSOLETE
e2e,We have a customer that was planning to use part number bq78PL116 on a new design. They need the active cell balancing feature. Unfortunately, number bq78PL116 is not recommended for new...
View ArticleBqstudio problem export .gg.csv file
Hi,I'm working on the BQ40Z50, I can not export the file with the extension *.gg.csv instead of that I have *.gg When I import i can select only the *.gg.csv file but i can not select the *.gg file.Do...
View ArticleBQ27200; corrupted registers during assembly?
Hello,A customer of ours just received their first production run with the BQ27200 devices being pre-programmed and then assembled. Some have issues with bad register values. It appears, at the...
View ArticleProblem in configuring BQ34Z100EVM for multi-cell use.
I am trying to connect a bq34z100 EVM with a EVM 2300 in Multi-cell mode with 4 cells. On connection to the PC and the bq evaluation software, the software does not display the complete value of the...
View ArticleCell Chemistry Not listed in selection table
I'm currently using a bq20z65R1. I'm having difficulty getting Qmax to update. I suspect that its because the chemistry for the cells i'm using (Ultrafire 1200mA 18350) isn't listed and the default...
View ArticleHow long does initialization take for bq27421?
When inserting a new battery (connecting to the gas gauge), how long does the bq27421 take to complete initialization after configuration, soft reset and exiting CONFIG UPDATE mode? I want to read the...
View Articlebq40z60 SMBus GND reference
Is the SMBus ground reference the PGND or VSS of the device? Since the external interface is referenced to the pack-, I assume that it is the PGND. If it is VSS, can you verify that we never expect...
View Articlebq274xx Design Capacity and Energy Configuration Values
I am using the bq27421 gauge with a 1000mAh (typ.) battery. The 1000mAh is the capacity from 4.2V down to 3.0V. My application requires a minimum battery input voltage of 3.5V, so I will be...
View Articlemultiple bq77pl900's
Hello, I am wondering if ithere is a problem with connecting the outputs of multiple BQ77PL900 circuits?Example: Take the BQ77PL900 evm-001 evaluation module. would it be possible to attach 2 modules...
View Articlebq34z110 power disconnected during impedance track process
Hi TI,My bq34z110 accidentally disconnected during the impedance track process,i put the power back on and it looked like it just continued.I just want to know if this means that that the whole process...
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some questions about Bq34z110
hello everyone ，When I use STM32F103 chip communicate with Bq34z110 chip through i2c , it comes a strange phenomenon: I get different datas from address 0x00 and 0x01 , and these data is changeing...
View Articlebq34z950 bq Evaluation Software
I am using the bq34z950 in a new design and need a copy of the bq Eval software specific for the part. I saw in a previous post that it needed to be requested. Can you send an email to me at:...
View ArticleBqTester Source code request
Dear TI,Please provide a copy of the source code for bqTester.exe.Thanks
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difference between BQ20Z655 VS bq20z655-R1
Hi all,I just know that BQ20Z655 is not recommended for new designs but it's replaced by BQ20Z655-R1 but is not pin-for-pin equivalent and may not be parametrically equivalent. and whene I check the...
View ArticleTrying to verify if the Impedance track algorithm on bq27421
I am trying to verify if the Impedance track algorithm runs on our system. Currently, I am facing issues as the Gas Gauge is not detecting the discharge or Full charge conditions. I believe these are...
View Articlebq274xx SOC1 Threshold Settings
I am developing with the bq27421 gas gauge and using the SOC1 set threshold to assert the GPOUT pin and generate an interrupt on my host microcontroller. My questions are about the valid values for...
View ArticleBQ40Z50 qmax passed value is negative and soc stays at 100%
Hi, I have connected BQ40Z50EVM and BQ24735EVM. I can see charging and discharging cycles happening but SoC stays at 100% irrespective of charging/discharging state. Also I see Time to full and...
View ArticleHow to programm the chemistry infos in bq27530 chip
Hi,i evaluate right now the bq27530evm board and i was wondering how to write the chemistry information of my battery pack in the chip.With the bq27510 i'm was using bqeasy. Exist something similar for...
View ArticleBattery Fuel Gauge and Monitoring for pleasure boats (Primarily Lead Acid...
We are building wireless sensor network for pleasure boats. One of the sensor inputs will be to monitor one or several boat batteries. Boat batteries are primarily large lead acid batteries. We want...
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