BQ27742-G1: Battery Management Studio with bq27742-G1
Part Number:BQ27742-G1I'm looking into using the bq27742-G1 but when I tried to load up a project for it in battery studio 1.3.54 it tells me that "the detected device is not compatible with this...
View ArticleBQ27742-G1: use bfet from BQ25890H as sense for bq27742
Part Number:BQ27742-G1I'm using a BQ25890H as my charger and I wanted to add a bq27742 for adjustable over current protection and gas gauge support. Â Can I connect the srn/srp across the battery fet...
View ArticleBQ40Z50-R1: Can't enable cell balancing
Part Number:BQ40Z50-R1Hello, I am new to using the BQ40z50-R1 evaluation board and I wish to activate the cell balancing. I have been researching and reading the Technical Reference Manual and followed...
View ArticleBQ20Z95: Fast Charge current and first and second level safety current settings
Part Number:BQ20Z95In my system if the Fast Charge Current (C431 in the TRM) is set higher than the first (C221) or second level safety current (, the battery doesn't charge. A TCA (terminate charge...
View ArticleBQ20Z65-R1: PFSTATUS 4000:0000 on bq20z65-R1
Part Number:BQ20Z65-R1I have a battery that was returned from our customer for a failure analysis that was in a permanent fail state. The PF Status bytes were 4000 and 0000. The GUI for the evaluation...
View ArticleClik here to view.
BQ40Z50-R1: Unable to activate CHG or DSG FETs when I do not have a fuse
Part Number:BQ40Z50-R1Hi,I'm using the BQ40z50-R1 BMS chip for a project. I redesigned the chip application based on the EVM module. I made some changes mainly to save on component cost and space on a...
View ArticleBQ34Z100-G1: Selecting EV2200 for BQ34Z100EVM
Part Number:BQ34Z100-G1Hello Sir,Can we use EV2200 as PC interface board for BQ34z100EVM.Thanks,Girish
View ArticleBQ78350-R1: BQ78350-R1 Application Qusetion
Part Number:BQ78350-R1Hi Sir,Currently we design BBU system now, but have some question need you help.1. What are difference about Charge Suspend&Charge Inhibit&Charge Disable ?2. Current use 4...
View ArticleBQ34Z100-G1: BQ34Z100-G1 Voltage Calibration Problem
Part Number:BQ34Z100-G1Hi,I am using BQ34Z1xx EVM and connecting it to bq studio using EV2400 over I2C .Iam unable to calibrate voltage parameter. I am using ~ 37V Lead Acid pack (3 batteries in...
View ArticleBQ40z50 SREC Programming
Hi Justin,I also need to program SREC files using a custom tool we developed. What is the status of creating an app note on how to do this?I recently had an issue where a supplier used bq40z50 parts...
View ArticleBQ27421-G1: BQ27421-G1A: the remaining mAh of battery
Part Number:BQ27421-G1About the TI BQ27421-G1A gauge, could you tell us the register to read the remaining mAh of battery?For example:1) NominalAvailableCapacity() 0x08 and 0x09 (mAh)2)...
View ArticleBQ27421-G1: BQ27421-G1A: the remaining mAh of battery
Part Number:BQ27421-G1About the TI BQ27421-G1A gauge, could you tell us the register to read the remaining mAh of battery?For example:1) NominalAvailableCapacity() 0x08 and 0x09 (mAh)2)...
View ArticleBQ27421-G1: How to read OpConfig() with extended commands
Part Number:BQ27421-G1I am trying to read the Opconfig (and DesignCapacity()) using extended commands, like so://write extended command to chip controlSend( 0xaa (write chip address), 0x00 (control...
View ArticleBQ78350: strange behavior on connecting load to BQ76940EVM with 14S10P...
Part Number:BQ78350Hi,I am a beginner to BMS and currently working on BQ76940EVM with EV2400. Initially i got success in connecting 9S1P with EVM and connected load successfully. I monitored this setup...
View ArticleBQ40Z50-R1: choosing 2nd level protection thresholds
Part Number:BQ40Z50-R1We are working on a 2S1P battery pack with 2-nd level protection (BQ2947xx + SC Fuse). Can someone explain the procedure of choosing the right COV value for BQ40Z50-R1 and...
View ArticleCompiler/EV2300: Request about EV2300 and BQ34z100
Part Number:EV2300Tool/software: TI C/C++ CompilerHi,I need to communicate with a gaz gauge BQ34Z100 via an EV2300 device, i'm in Windows 7 64b laptop, so firstly i need to know which Driver i sould...
View ArticleClik here to view.
BQ78PL116: Problem with Gauging Parameter Calculator
Part Number:BQ78PL116Hi,we tried to check what chemistry ID will suite the best for our batteries, but we have issues with the Gauging Parameter Calculator. We got this respond message after uploading...
View ArticleBQ34Z100-G1: I cannot finish the calibration
Part Number:BQ34Z100-G1Dear all,I designed my PCB (portable device, 1 Li-Ion cell of 3.7V, 1100mAh) with the gas gauge BQ34Z100-G1. I followed the instructions from the document SLUA334b.pdf (with...
View ArticleBQ34Z100-G1: Fuel Gauge reports incorrect remaining capacity at -20C
Part Number:BQ34Z100-G1I am using a BQ34Z100-G1 Fuel Gauge with a Lithium-Ion battery pack with two series, and four parallel. The terminal voltage of the battery at full charge is 8.4VDC. My fuel...
View ArticleBQ34Z100-G1: BQ34Z100-G1 Seal to Unseal
Part Number:BQ34Z100-G1Hi,Can anyone list the commands to unseal bq34z100G1 (Address 0xAA ) using manual control panel on the bq studio. I tried to unseal the device using GUI buttons on bq studio...
View Article