BQ34Z100-G1: Question on commercial cells support (chemistry)
Dear all, We are interesting in using the new TI chip BQ34Z100-G1 to estimate the SOC of LiFePO4 battery stacks. We have already checked that the chip supports the CALB CA60FI and Winston WB-LYP...
View ArticleReplaceable Battery Systems
Hi, I have a doubt about battery replacement and this values:- Max Res Factor- Min Res Factor- Max Res Scale- Min Res Scale- Max QMAX ChangeHow do I select these values for my system based on...
View ArticleBQ27530-G1 Golden Image File
Hello,how to generate the golden image file for the single impedance track BQ27530-G1?Thanks.
View ArticleBQ34z100 Remaining capacity fluctuation at low temperatures
I have been using the BQ34z100 over the past year with good success. During use it has seemed to always provide pretty accurate SOC numbers. Just recently it has gotten cold, -10 deg C, and several...
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bq40z50-R1: Manufacturer Access different value from Operation Status A (and...
I cannot figure out why the value in ManufacturerAccess() 0x0000 doesn't match the lowest 16 bits of OperationStatus?In bqStudio, ManufacturerAccess() 0x0000 = 0x8187, but Operation Status A = 0x0187...
View ArticleNeed .dffs for bq27531 file
Using bq27531-G1 with fw 1.02, and bqEVSW.1) Can I get a version of bqStudio that will recognize this device? So far I have had no success. 2) How do I generate bqfs, dffs files for this device?3)...
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bqStudio gauge bq34z100G1 failed to display exact percentage in battery...
Battery SpecificationPanasonic Lead-Acid Battery NP7-12 (12V 7Ah / 20HR) single cell pack configurationbattery to full 13.8Vbattery to empty based on our system 12VGood day guys, I start setting up EVM...
View ArticleFlash Update OK Cell Volt Problem
Hi, I have a problem with the value of Flash Update OK Cell Volt.Flash Update OK Cell Volt = 2800 mV × Number Of Series Cells × 5000/Voltage Dividerin my case I have the following values:*Number Of...
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Bq34z100 State of charge not working.
Hi,We have implemented the BQ34z100 and cannot get the state of charge working. We have tried to use the process documented here: h...
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Gas gauge IC pad radius
I am designing land pattern of bq40z50-r1. Attached is land pattern which datasheet mentions. I am using land pattern as shown in left side of PCB.While designing in ultiboard, it asks for pin radius,...
View ArticleBQ78350-R1 Calibration problems
I just updated our BMS design to use the new BQ78350-R1 and I am running into calibration problems that I had not experienced when using the previous version of the IC. I am calibrating using the...
View ArticleBQ 40Z50 manufacturer access code meaning
Dear sirs:I had a failure battery pack in hand, which is used IC BQ 40Z50, the manufacturer access code is 6B86. I checked the datasheet , but i can not find anything about this, could you help to...
View ArticleImpedance Track Algorithmn/Alternatives
Hi,We are currently trying to find a battery gauge for our Li-Ion application. The battery used is individually manufactured for our application.I read about TI's Impedance Track technology and...
View ArticleEV2400 and HDQ
We have a couple of products that use gas gauges with HDQ communication protocols. We are also in the process of updating computers. With the EV2300 not being officially supported for 64-bit machines,...
View ArticleBQ27421-G1AEVM vs BQ27421-G1BEVM Differences?
I see we have www.ti.com/tool/BQ27421EVM-G1A and www.ti.com/tool/BQ27421EVM-G1B , but I am not seeing what the difference is between the two. Please describe what I might be missing in determining...
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bq40z50-R1 OverCharge Flags
While charging I got an overcharge condition, with SafetyAlert()[OC] = 1, but SafetyStatus()[OC] = 0.Charge FET is disabled, so I assume that at some point SafetyStatus()[OC] was set. Right now there...
View Articlebq27542-G1 SE pin as interrupt
What are the required pack configuration register settings needed to get the SE pin to toggle from a HIGH to a LOW when the SOC1 flag changes state?I can manually toggle the pin through the bqStudio...
View ArticleBQ40z60 not balancing
Hi All,I'm trying to charge a 4 cell 1P 18650 batterypack with the BQ40z60EVM kit and BQStudio.The BQ40z60 does not seem to go into balancing mode. Bit 2 (CBR) and bit 0 (CB) in the balancing...
View ArticleBQ34z100-g1 alert signal not working after disconnecting and reconnecting...
Dear Sir / Madam, We are using the alert signal to turn off our load when the battery voltage drops below a set level.Only the BATLOW register is used to trigger the alert signal.Alert configuration...
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bqWizard : Error Parsing File
Hello,I have a problem with the View safety history command of the bqWizard 3.1.When I click to run this command, an error appear.I tried to reinstall bqWizard but the error is still here.I tried the...
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