BQ40z60 ACP voltage drop and other questions
Hi all,I have three questions about BQ40z60:1. When I had DC charger connected but charging is not enable, the reading from ACP pin is correct (about 12.06 V). When charging is enable the voltage...
View Articlebq40z50 finish discharge
In which conditions bq40z50 stops the discharge of cells (stop the DSG FET) ?My setup is that TD and FD will set/reset only based on cell voltage , not on RSOC. I have let my battery ( 3 series cell)...
View ArticleHigh temperatura on charge in BQ40Z60 custom hardware
Hi!We've developped a custom board that uses BQ40Z60 for charging a four cell battery. The discharge is ok, but if I enable the charging, the temperature of BQ40Z60 suddenly rises and the chip goes in...
View ArticleBQ20Z60R1 NTC temperature coefficient meaning
Team,What does the "Ext temp coef 1..4" plus "min AD" plus "max temp" correspond to as found p 212/213 of sluu386? I guess 1 to 4 correspond to polynomial coef but how about "min AD" and "max temp"?Do...
View ArticleBQ78350-R1 with BQ76920 using more than one TEMP SENSOR [TI NE]
According to this E2E post:https://e2e.ti.com/support/power_management/battery_management/f/180/t/399600, only one EXT TEMP sensor can be used. However, the BQ78350 datasheet, section 9.3.7.3 states:...
View Articlebq34z100-G1: chemestry ID for Rechargeable Li-Ion battery SAFT MP 174565INT
Hello!Where can I get the information about the chemistry ID for Rechargeable Li-Ion battery SAFT MP 174565INT.Reference to this battery:...
View ArticleBQ78350-R1 Is there anyway to write a modified firmware?
Hi All,I want to make the LEDs generate specific visual patterns based on different button presses controlled by the GPIO A and B. I suspect that I cannot do this in firmware on the BQ78350-R1 and I...
View Articlewhich is the jumper configuration for bq27531g1-evm?
someone can help me?I want to know the correct position of each jumper for the bq27531g1.please I hope that someone can help me.Thanks
View Articlebq27532-G1 work as stand alone without together bq2425x
Hello,We are planing to use bq27532-G1 for battery fuel gauge monitoring without together bq2425x battery charger.We have select battery charger IC bq25895 in our application and We don't control...
View Articlebq27520-g4 linux driver for Android 2.3 or 4.0 Intel Cherry Trail platform
Hi,Could you share with me any driver ?ThanksStanley
View ArticleBQ34Z100 / state-of-charge varies without load
Dear BQ Experts,on behalf of my customer I'd appreciate if you could take a look on below:==============================================we are using a TI BQ34Z100 Fuel Gauge Sensor in our...
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Gas Gauging trouble in BQ28Z610
I have custom PCB with BQ28Z610 and single cell LiFePo4 battery. I use 0440 Chemistry ID. There are some questions:1) How should I connect VC1 and VC2 pins? Now it's short, but in EVM documentation it...
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bq76920 interface
Hi TI experts,We plan to develop a battery management system as below:Please refer below block diagram...In this case, we choose bq76920 fuel gauge because it can support from 3S to 5S cell and...
View Articlehow can I update a bq27531 with a .senc file?
I download the .senc file to upgrade the firmware for my bq27531-g1-evm, but i dont know how to use it.can you help m eplease?
View ArticleBQ34Z100 programming the internal memory in production
Hello, Does there exist internal memory programming specification? Our customer asked us to implement programming of BQ34Z100 in our programming tools, they need to program devices in production.Best...
View ArticleLG INR18650F1L Cell Chemistry
Is there a chemistry profile for the LG INR18650F1L cell?
View ArticleCEDV with Current Scaled
Hi:I am trying to get the CEDV information from TI, and 6 log files are uploaded. However, we need to scale the current by 10 (IPSCL0=1), so the real current is the shown current times 10. When I...
View ArticleBQ27500 DOD update
Hello I am a very few knowledge about gas gauge products, but please allow me such a basic question.My customer had designed their product 6 years ago ( medical product) using BQ27500, and now their...
View Articlebq2050h capacity dropping
I am working with a system that has a bq2050H designed into a lithium battery pack. The system charges the battery pack using a MAX1758 Li battery charger IC. For most users, the system runs from a DC...
View ArticleTo patch wrong layout for the sense resistor with BQ40Z60
If charging current is about 1.4 A, how can I increase the sense resistor between SRP and SRN to reduce sensitivity from layout in the measured current? 50 mOhm could be a right choice?
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