BQ27530 InstantaneousCurrent() vs. AverageCurrent()
The TRM for the BQ27530 shows InstantaneousCurrent and AverageCurrent read values. However, both of them show an update rate of 1 second - is this correct?
View Articleli-ion battery parallel cell fuel gauge
Hi, I'm designing a Li-ion battery charger and its fuel gauge for robots in a company.The Li-ion battery consists of 4 of 2600mAh Li-ion battery cells. I mean 4 in parallel.I found a charger for it and...
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How to reset lifetime max temp after testing via SMB Bus on BQ20Z65R1
During product Manufacturing we will not have access to EVM software or PRO screen. We are creating a stand alone production test unit based on a hacked version of our battery charger since it...
View Articlefuel gauge for a single cell primary battery?
Hi,I'm completely new to battery management, so my question might be stupid, but I will still ask:Is there a integrated solution to monitor the single cell primary batteries?The selection guide here...
View ArticleEV2300 on 64bit Windows 7
I'm trying to install the driver on my computer and I get the following error: "Error E0000235 in UpdateDriverForPlugAndPlayDevices".I read the forums and there seem to be a lot of people with the same...
View ArticleWhich gas guage to choose
Dear forum members,I would like to know which fuel gauges are appropriate for a battery with 4 LiFePO4 cells in series with a capacity ranging from 60Ah to 200Ah. Low power consumption is very...
View Articlebq33100 EVM capacitance learning
Hi,I'm using the bq33100 EVM with two supercaps in series (2.5V;1F;500mOhm ESR; PowerStor). When I send the MAC command 0023 to initiate the capacitance and ESR learning I expect the resulting...
View ArticleSMBus single Cell Fuel Gauge?
Team-After reviewing the selection guide, it appears that we do not have an SMBus compatible fuel gauge for single-cell (1S1P) applications- please confirm this.The only device that will come up under...
View Articlebq78350 product
I don't found the bq78350_xxxx.srec firmware file for bq78350...please help me
View ArticleBQ27510-G3, Bad battery ID
Hi,Can BQ27510-G3 detect a bad battery in this use case?Single cell Li-Ion battery is operating as UPS, for backup power only.3.65V nom., 5300mAh nom capacity, 19.3 Wh nom. energy.The design’s new...
View Articlebq77910A vs bq77PL900 vs bq76930 - 10 cell LI ION cordless tool battery pack
For a 10 cell cordless power tool battery pack, which of these part numbers would be best? Or would there be another ideal component?The difference I see is that the bq76930 is only the analog front...
View ArticleCFET vs ALERT for BQ28Z560-R1
Dear Sir.What is the key difference between JFET and ALERT for BQ28Z560-R1?GPIO can be configured as a alert pin when the fault event occurred. Can I think CFET mode is H/W configuration and ALERT mode...
View ArticleBQ20Z65-R1 NRND
Hello,Why is the BQ20Z65-R1 not recommended for new designs? There does not appear to be a replacement part that also offers gas gauge cell balancing, rather than simple voltage-based cell balancing -...
View ArticleDataFlash Checksum
Hi,I have written an app to write a DFI file to my BQ20z65-R1 (or BQ20z95) which, as per SLUA355, does the following:Puts the device in ROM mode Erases a row (x11) Write a row (x10) <repeat on every...
View Articlebq769x0 Shutdown and Wake Up
Hello,What pins are active in the bq769x0 during shutdown? Are the CAPx pins low to their respective references? I assume REGOUT would be off.I'm going to use the bq76930, but I need a way to wake it...
View ArticleBQ27520 have some question of learning cycle
we use the BQ27520 Gas Gauge on my device . first we use the BQESW software and bqeasy option to setting all of battery data flash and parameter step by step. we have some question , and need to...
View ArticleNeed help generating a golden image with a BQ20z75
I'm currently in the process to make a golden image for one of our customer.The battery pack is build around 2 Panasonic NCR18650A in serial and a small board build around a BQ20Z75v-180.We use an...
View Articlebq27621-G1 - Accessing Extended Commands
Hello,As outlined in the Quick Start Guide it is recommended that a few parameters be configured to achieve accurate gauging of the target battery (Design Capacity, Design Energy, Terminate Voltage,...
View Articlebq34z110 Accesing data flash
Hello I am using an application with bq34z110 for monitoring 2 batteries. I use a standard microcontroller for communicating with bq through I2C interface. It is not clear for me how to use extended...
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