BQ34Z110EvM using external sense resistor
The datasheet for the BQ34Z110 seems to imply that one can adjust the CC Gain and CC Delta values in BqEVSW to match sense resistor values as low as 200 microOhms. The GUI delivers a message stating...
View Articlebq27742g1 Protector Status Register question
Are there any conditions where a bq27752g1 would shut off the charge or discharge FET due to overcurrent on charge or discharge but not have CHG_OFF/DSG_OFF and OCC/OCD set to a "1"?Thanks for your help.
View ArticleEV2400 SMBus Clock Speed
Can the SMBus clock speed be changed in the EV2400? I have a system that requires a slower clock speed. When testing it, the data will drop out at times when reading with an EV2400.I read that the...
View Articlebq20z95 EVSW code
1. Can you please provide the bq20z95 GAS GUAGE EVALUATION SOFTWARE CODE?2. I am trying to read the OPERATIONAL STATUS REGISTER under the extended SmBus commands but we are not successful. Please...
View ArticleHow to keep GaugeStudio and ES(bq Evaluation Software) both on at the same time?
Hi!I am a manufacturing engineer that is helping my employer shorten the times spent on programming bq27541. Currently we are using EV2400 to~ run GaugeStudio to program the bq27541 (close the...
View ArticleQuestion about EV2300 and EV2400 of bq27621EVM
Please let me know about two point below of EV2300 and EV2400.・Is EV2300/EV2400 needed to move bq27621EVM?If EV2300/EV2400 isn't used, bq27621EVM can move an easy monitor, is it right?・Customer using...
View ArticleBQ34Z110 - changing battery wires length
Hello.We are using BQ34Z110 for Lead-Acid 12 V 7.2 A*h battery gauging. Let's say our gauge was trained with battery connected by wires of 0.2 m length.Will Impedance Track algorithm work correctly if...
View ArticleHow to correctly send PFCLear to BQ34Z950
What is the correct method for sending the PFClear command to the BQ34Z950 via SMBus? I am using SMBLib 1.0.0 on MSP430 to communicate with the chip and need to issue the command after the battery pack...
View ArticleHow to calibration with BQ34Z110 for Vehicle battery?
Hi.I try to use BQ34Z110 in vehicle. I tested BQ34Z110 in vehicle without calibration. I can't get good result. I can see wrong Remain capacity and State of Charge value.I need to calibration BQ34Z110...
View ArticleBQ27742-G1 under voltage protection
Hello,We plan to use the BQ27742-G1 protector and fuel gauge. I have been reviewing the specification but there is something that puzzles me...Apparently, there are 2 levels of protection: hardware...
View Articlebq34z950 DQ Data Available
I'm using a bq34z950 in several of my products to help streamline design work. Some of my customer's products use the DQ, others use SMBus, making the z950 a perfect part. I just noticed in the data...
View ArticleBQ34Z100 I2C Multi byte write (incremental writes)
Hello, in the datasheet it says you can only write one byte at a time, if you attempt an incremental write all extra bytes will be be NACK.This doesn't seem to be the case.When I use the BQEV software...
View ArticleHow to check whether BQ34Z100EVM broken or not?
Hi,We intend to use the BQ34Z100 for our battery management system which we had been purchased a BQ34Z100EVM & EV2300. I did download Battery Management Studio software and EV2300 USB driver for...
View ArticleBQ34Z100-G setttings Chemistry id battery
hiI'm trying to configure a bq34z100-g.but I'm stuck on the chemistry ID of the battery,wich settings the best to use??we use the two series-ranked cpc 90-12.regards
View ArticleBQ40Z60EVM not charging when set up for 2S2P configuration.
I have the BQ40Z60EVM and used it to charge a 3S stack after changing Cell chemistry to match the batteries. Then I changed the jumper, DA CC1 and CC0 and connected up a 2S2P stack. I also changed...
View ArticleBQ34Z653 - What is "Res Relax Time"
One of the IT Gas Gauge settings for the BQ34Z653 is "Res Relax Time". What is this?Neither the datasheet nor the manual (sluu986) reference this parameter.Thanks
View Articlebq34z100evm and linux/ android
Hi,I am using a bq34z100evm an ev2300 and an android beagle bone black device.I connected our battery pack to the bqEVM +BAT and BAT- connector and tested the connectivity functionality directly with...
View Articlebq76940 Balance issues
hi,i am working on 940's internal balance works. but i am not sure if my workflow was wrong or not since i already damaged 2 x 940 these days, both of the damaged 940 were short-circuit on VC0 and...
View ArticleBQ40z60 program / wake-up custom board
Hi,I am currently facing the problem, that I can not wake up my custom BQ40z60 board.We designed a board to gauge 2 series cells. The layout is close to the evaluation board. But we did not add a...
View ArticleBQ34Z100-G1 to monitor a PbA Bank
Hi,I'm configuring a hybrid system that features a PbA battery bank that is primarily charged by photovoltaic panels, but is also designed to be charged up by a gas generator if the batteries get too...
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