How to use the same gas gauge with different brand batteries?
Hi,We want to use the same gas gauge in our design,but the manufacture of the battery is different.Should we use different Chem ID？This is inconveniet in mass prodction.How to solve this problemfor...
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Please help. Some questions about Bq34z110 - I2C Write - 'Qmax Cell 0'
Hi,I use STM32F215XX chip communicate with Bq34z110 chip through i2c.I follow the step in page 28 of slusb55b.pdf'PackConfiguration' : 0961 -> 0960 is success!!It was succeeded thanks to you.And I...
View Articlebq27621-G1 I2C Process (write and read)
Hello guys,As I am almost ready to complete my project, the bq27621-G1 is the only part that I made to work roughly and now I want to fully understand how it works so I can utilize it.Starting I have...
View ArticleBQ40Z60 and bqStudio
I'm running bqStudio v1.3.45 and an EV2300 connected via SMbus to a custom PCB based on the bq40Z60 application circuit.1. When I first run bqStudio, it usually won't auto-detect. It provides a list...
View Articlebq30z55 and bq Evaluation Software
I'm running bq Evaluation Software v0.9.92 and an EV2300 connected via SMbus to a custom PCB based on the bq30z55(my device:550_0_36_3_0034) application circuit.1. When I first run bq Evaluation...
View ArticleBQ27530EVM Will not charge battery
Hello,I am trying to use the BQ27530EVM board and I cannot get it to charge my battery. I am using a 2500mAh Polymer Li-Lion battery pack (specifically Adafruit part #328) and changed the values in the...
View ArticleCan 2 BQ76940 stack together ?
Can i stack 2 x BQ76940 to support cells from 18 to 30, i like to use BQ76940 rather than BQ76PL455A because it lack of CC and mosfet control and also 20 cells is the project limit therefore i don't...
View ArticleInterfacing a bq40z50 tto a PC for battery pack development testing using...
I'm developing a battery application using a standard BQ monitoring/protection device and a separate BQ charger chip.I want to perform development testing of the charging and cell balancing circuits...
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Please help. Some questions about Bq34z110 - I2C Write - 'Qmax Cell 0' -...
Hi,I would like to 'Qmax Cell 0 : 4000 - > 10000'.I use STM32F215XX chip communicate with Bq34z110 chip through i2c.I follow, here is the step.ButI get different datas from 'STEP (A)' and ' STEP...
View ArticleFuel Gauge for LiFePO4
I am looking for a solution to measure SoC and voltage of a battery pack that is made of three in-series connected LiFePO4 cells. Charging functionality is not required. I expect to have over-current,...
View ArticleBQ2022A family code
Hi Sir,My customer would like to know the family code that we store in the BQ2022A, he need this information to make sure his read command is working.Could you kindly help to provide?This is DELL...
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 ArticleBQ27510 Learning Cycle Results
I recently tried to do a learning cycle on the BQ27510 lithium-ion fuel gauge using the BQ27510EVM, the GDK, and Battery Management Studio software. When it finished, I opened the Battery Management...
View Articlebattery SoC mesurment
I am designing an instrument powered by two series AA batteries. The batteries can be NiMH or NiCd or alkaline. I need to display remaining battery capacity on the device, so I was wondering what the...
View Articlebq40z50 pre-charge FET toggle
We are using FET toggle commands in a script to perform functional test on new boards that use bq40z50. The charge and discharge FET commands work fine, but the pre-charge toggle does not seem to...
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BQ40Z60, DSG won't turn on
Hi,I'm bringing up a custom PCB based on the bq40z60. It's essentially the EVM circuit but with the secondary protection IC and fuse removed. It's being used with a 3S LiPo battery and a ~16.7V "VAC"...
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LP2985-10 PSPICE model not compatible with TINA
Hello,I am trying to run stimulation using the LP2985-10 PSPICE model provided by T.I with T.I.'s TINA. I read that the PSPICE models are encoded and must be used with PSPICE but that T.I. can convert...
View ArticleBQ34z100-G1 Design Energy
Hi,I have a question regarding the design energy parameter for the battery gauge. Our design uses a 1S4P Li-ion battery. Each cell is 3.7V, 3Ah so the total design energy is = 3.7V * (3Ah*4) =...
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