Monitoring single Lead Acid cell (using bq34z110)
Hi,We want to monitor single Pb-acid cells (2V) and zeroed in on the bq34z110 IC, but I see that it's starting voltage is mentioned as 4V! Is there no way to use it to monitor 2V cells?Regards,Anup
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PCB Design Verification required for Gas Gauge "BQ27541"
Hi,We are using BQ27541 gas gauge IC for our battery application. I have referred TI evaluation layout design for our new design which is shown below. So please check and verify the design and Let me...
View ArticleBQ3050 will not enable charge until SMBus activity
I have a BQ3050 implementation using four Li-Ion cells. I connect the battery pack to a charger and the BQ3050 will not turn on the charge FET. I found that if I connect the EV2300 pod to the pack for...
View Articlebq20z60 sleep and shutdown modes
Hi,I am programming a bq20z60 and after several tests I have seen that for some reason I cannot enter SLEEP and SHUTDOWN modes. I have tried to follow the SLUU386 reference manual but still is not...
View ArticleBQ34Z100 I2C communication error 772
When starting the program, i come in the DATA RAM page which seems to be work good.If i i press the refresh button, two off the flag blocks are colored . When i switch to DATA FLASH page i getting the...
View ArticleBQ27200 Driver Problem
Hi! i configured my Linux Kernel 2.6.36 with the driver for BQ27200. The version is 1.1.0.But when i running Linux, i have this bugs (see the attach file).I tested the IC without driver (i used a...
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BQ77910A leakage
Hi,Would like to understand the potential root cause for the voltage leakage.There is no known loading effect and there is no short found as well.On top of that, the cell balancing feature is also not...
View ArticleSDA on bq78PL116 held low by slave always.
Hello,I'm having an issue with interfacing to a bq78PL116. I have two identical battery packs. One works fine with the GPIO USB adapter from TI and the other not. The second pack use to work....voltage...
View Articlebq27421 Watchdog Reset
Hi,I am having an issue with the application example on page 11 in the bq27421-G1 Technical Reference (Literature Number: SLUUAC5). I am able to successfully update the design capacity bytes and I...
View Articlebq27541 - Lost communication while reading .DFI using bqEasy
The progress bar for the .DFI read was almost to finished when I got an error message about a path or file problem. It may have been because I was logged in as a User, not Administrator, and there was...
View ArticleBQ27510 EVSW
Hi everyone !I need information about BQ27510-G1. What reason for update evaluation Software Version? 0.9.71(release DATE2010.11.03) -> 0.9.92(release DATE: 2013.3.5) Please send me if you have any...
View Articlemultiple packs using BQ20z45
I working on a system that will have two battery packs. What's the recommended way to communicate to each on the same SMBus since this device has no input pin to adjust the device address?
View ArticleSetting gas gauge fault flags for bq20z90
I am trying to use the SMBus data from the bq20z90 as a diagnostic tool to allow my battery charger to diagnose various faults in the battery. To validate the charger firmware, I need to be able to...
View ArticleChemistry Selection
The Mathcad file in sluc138 is not compatible with the newer version of Mathcad from PTC because TI have locked & hidden areas in the sheet.I'm not quite sure why TI want to hide part of the...
View ArticleDefault .senc file for bq20z655-R1
Greetings, I am trying to create a golden pack image for a bq20z655-R1. The application note SLUA379E (Data Flash Programming and Calibrating the bq20zxx Family of Gas Gauges) describes a procedure...
View ArticleBQ20Z95 cell balancing performance
I am evaluating the BQ20Z95 for a 3 Li Ion battery pack.How can I evaluate the cell balancing performance? That is how can I quantitatively test that the cell balancing is working properly?Thanks.
View ArticleFuel Tank BoosterPack not working
Hi, I was wondering if anyone had an experience with BOOSXL-BATTPACK.I've got one to test it, but couldn't make it to work.I left the battery to be charge and it never indicates the end of charge....
View ArticleBQ20z65-R1 Data Flash Write Problem
HI,I am trying to write to the data flash on a new battery design using the BQ20z65-R1 v1.05, but the aval software does not seem to be able to update the data flash. When I write to any of the...
View ArticleBQ76925 over and under voltage threshold
Hello Team,Im working with a customer called Vecture and i'm trying to figure what is the over voltage and under voltage threshold on BQ76925. i went through the datasheet and it doesnt appear to be...
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Can i power 3 x 356A like this ?
I would like to use standalone voltage regulator such as LM5008 to power 3 x 356A for up to 18 cells lifePo4 battery, with mcu and some other communication module, beeper, it is likely consume 30mA.i...
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