OT2D flag when TS2 is not being used
Gentlemen;I am in the process of manufacturing a new battery pack using the bq20z655-R1 chip. I am currently having a problem with the discharge FET not turning on because of an OT2D flag in the...
View ArticleBQ27742-G1
I have a battery that uses the BQ27742-G1 to report the SOC and temperature of the battery. I removed the battery and connected a power supply set to 3.6V in stead. I measured the output voltage and I...
View ArticleBQ27742 SOC instantly changes from 100% to 0% during charge at termination...
(Please visit the site to view this file)Here is the problem:BQ27742 SOC instantly changes from 100% to 0% during charge at termination conditions.I have attached a of the charge cycle, and the...
View ArticleBQ 78350 Battery Voltage different than Output Voltage
I have loaded the default program on to my system that has the latest version of the BQ78350 software but I still get like a 5-6 volt drop on the output. I am using just the basic 3 cell config and yet...
View Article.srec file for the BQ78350 Bq studio
I can not locate any files for the software could some please send me the file for a 7 cells configuration or point me in the direction to download this please, Also is there a way to reset the BQ...
View ArticleQuestion on EV2300 and BQ34Z100EVM
I was planning on using theBZ23Z100-G1 to monitor some NiMH calls. The data sheet says that it will support this, but when I go to the EVM page, it states:"The circuit module includes one bq34z100...
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Trouble connecting to the bq78350 bqStudio through EV2300
Hi.I use BQ76920EVM, EV2300 and bqStudio.According to the document passed "SLVU924S" paragraph "2.2.1 AFE Quick Start"Paragraph "2.2.2 Gauge Quick Start" problems began.In step 15 did not happen...
View ArticleBQ 78350 connected to BQ76930 Voltage Output Pack+/- is Different from Batt+/-
Please if anyone can give me some advice on how to fix my voltage output issue as I am having trouble. Here is what I am using in summary EV2300BQ78350 (latest Firmware) with BQ76930 AFE cell map reads...
View ArticleBQ27421-G1x questions
Hi,Could you help me to clarify two BQ27421-G1x question?(1.) How could I send the IT_enable command when I doing the Qmax learning??- below information from "Low-Power, Long Runtime Battery Fuel...
View ArticleBQ27441-G1 battery removed with BIN pin pulled down
Hello,I would like to know the impact of leaving the BIN pin pulled down to ground when the battery is removed.Is this critical for the fuel gauge internal state machine (or circuits) or is this...
View ArticleBQ40Z50-R1 protection delay
Currently, we are conducting a test of Overcurrent in Discharge Protection.For the setting of -18A-1s, FET was turned off in 2s after passing a -19A of discharge current.So I made changes to the delay...
View ArticleBQ80XRW - Can somebody provide help information.
I am currently working on writing a LABVIEW VI for BQ28X610 and communicating it thru I2C using the BQ80xRW ActiveX. Can somebody provide link or information where can i download the help information...
View ArticleBQ20Z655-R1 REG25 Failure
Hello all,We have a 3S2P Li-ion battery pack designed around the BQ20Z655-R1 reference design. 3 out of 10 prototype packs have failed, and all in the same way. After being fully exercised (comm...
View ArticleFailed to program BQ34Z100G1
Hi all,I am using bqStudio to program my bq34z100g1. However, after I clicked Program, it ran several seconds and turned to Registers page. After that, I can't connect to the IC anymore. Programming...
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bq40z50-r1 Q: how to fix FCC during discharge
Hi all!Pack Li-ion (3S), CF=0This discharge cycle (blue - voltage pack , light blue - FCC, yellow - Remaining CC, magenta - current)How to disable recalculation FCC during discharge?
View ArticleBq34z100-g1 question regarding scaling factor and design energy field
Greetings,16s2p lithium. 57.6V 5.6AhI am setting up a BQ34Z100-G1 with a battery pack. I have determined that I need a scale factor of 2 for the battery voltage parameter, and set the scaled bit and...
View Articlebq78350 / LEDs do not lighting by /DISP pin's low timing.
Hi experts,Please let me know about bq78350.Our customer adopted the bq78350 to new design.They found a mysterious phenomenon on test circuit board.When they push again the /DISP switch and LEDs are...
View ArticleBQ34Z100-G1 Determine ChemID match for large lead acid battery pack.
I have managed to calibrate and program using the BQ34Z100EVM and EV2300 the device. I have accurate currents that are scaled by 20, and voltages are accurate. It took me some time to get the IT to...
View Articlebq-27520 EVM 2300 Sleep Flag Always high
Hi,While performing a learning cycle(which failed) and re-running it, I see that the system has gone to sleep and I am unable to bring it out of sleep. I2C communication is still OK. I see correct...
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bq40z50-R1 : SMBus 0x44 ManufacturerBlockAccess() lost Ack clock.
HiI want to make the C# software to perform the calibration.But I have issue SMBus ManufacturerBlockAccess().(The communication we are using MPSSE mode of FT232H of FTDI chip.)FT232H the in connection...
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