bq27621-G1 datasheet package size
I checked bq27621-G1 package size in the datasheet and found different values in page 3 and page 18. DIM MIN TYP MAXP3 D 1550...
View ArticleBQ34Z100 SoH calculation
I'm looking to a solution to determine the State of Healt of Acid-Lead batteries (the State of Charge is not that important).I understood the BQ34Z100 can provide some indication on this.How is (in...
View ArticleSwitch bq27541 from HDQ to I2C
Is it possible to switch back to I2C from HDQ mode by reprogramming the bq27541?
View ArticleSwitch bq27541 to HDQ Command
Does anyone know what the I2C command is to set the bq27541 to HDQ mode using the bq80xRW activeX control? It is not practical to use the EV software in production and there is no mention of what the...
View ArticleDFI format
Hi,Is the format of the DFI considered propriety? The reason i want to know is for planning for the implementation of fuel gauge programming by our own firmware. in this case, it would be ideal if we...
View ArticleBQ34Z100 AGND & GND
Hello,I had firstly posted my query in the wrong forum and the rep there did assist but he suggests i still consult this forum....
View Articlebq20z40 v1.04 software
Hi. I'm trying to repair battery for hp MU06 with bq20z40. This bq20z40 is v1.04, but on Your site i found that bq20z40 has NRND status and most fresh bqeasy software is for bq20z40-R1 v1.05. When I...
View ArticleBQ27520 firmware recover
In our device we are using the BQ27520 fuel gauge. When I've tried to update it with bq27520G4_3_29 firmware in GaugeStudio I got firmware update error and now the fuel gauge looks absolutely dead....
View Articlebq76920: Gerber files for EVM available?
Hello,We're laying out a board for the bq76920 and would like to use the EVM layout as a starting point and guide. Are the Gerber files for the EVM available? Or even high resolution PDF files of each...
View Articlebq34z100 ACK too late in I2C
Hello All,I use a bq34z100 in I2C, host is a MCU from ST./ In the bq's datasheet, http://www.ti.com/lit/ds/symlink/bq34z100.pdfI can read on page 7 : t(RSPS) max = 950µs but in real life, I measured...
View Articlebq76920 driving paralleled FETs?
Hello,We have a high-current application for the bq76920 that would require six paralleled CHG FETs and six paralleled DSG FETs. We realize that the turn-on and turn-off times will be extended by doing...
View ArticleAuto Cycle
Hi there!Is there a document describing the autocycle feature somewhere? Drawing threads from a number of documents, it appears that to do a learning cycle, I need to;1) Run through the calibration...
View Articlebq20z95 libraries and firmware implementation
Hello everybody,I need to use bq20z95 output data on a custom made software. More in details, I own a microcontroller which could be connected to the gauge by the SMBus port. Where could I learn how...
View ArticleSearch for battery management
Hello,I am looking for a gauge system for Li-Po battery (6S).I have current pic to 100Ah <30 seconds and an average load of 40Ah. I saw the component bq34z100 but I think it does not comply with the...
View ArticleDischarge Completion and Charge Completion ON in same time
Hi,Chip(BQ78PL116)I received the batteries after sales service, the flag of DC and DC flag is set to 1.This occurs because the standby power consumption of the product is below the Transition to Idle...
View ArticleBQ27421 hibernate problem
Hi,I am using BQ27421 to measure battery percentage (State of charge).When system goes to sleep mode , I am putting BQ27421 into hibernate mode, It's also going into hibernate mode.But When system...
View Articlebq34z110 power on reset
Hello,I understand the RAM values are lost when the power is cycled (i.e. battery disconnected) but what does this mean in reality?What effect would there be on the reporting when the battery was...
View ArticleDifference in single cell gas gauges
Hello There,Does anyone know the difference between bq 26200 and bq26201?And the difference between bq 26500 and bq26501 ?Not much difference when reading datasheets...Thanks.MI
View ArticleConfiguring flash constants
Hello,When idscussing the topic of configuring flash constants using bqEVSW, several TI documents (including Data Flash Programming and Calibrating the bq20zxx Family of Gas Guages - SLUA379E, Aug...
View Articlebq76920: Configuration for additional VCx input protection?
Hello,For our prototype boards using the bq76920 we would like to add additional protection beyond the RC filter. The operating environment is automotive with a huge variety of EFT/surge voltages and...
View Article