BQ3060 failure and procedure to wake it up
Hello all.I have 2 questions/problems:1. My BQ3060 software hung( can't connect to it with EV2300 but REG27 has 2.7V so it is alive). I decided to reset it with connecting Vss and REG27 for a second,...
View Articlebq80xRW OpenDevice in C#
Hi All,I'm hoping this is going to be a no-brainer, but what I am trying to do is write an application in C# (MSVC 2010) using the bq80xRW OCX control that will control 4 EV2300s from a single...
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【GUI Protection setting Problem】BQ 78350
I want to set COV threshold at 4.25V and delay 4s.But It didn't work.I did try two version 1E9B_1_03-bq78350_R1.bqz & 3644.1E9B_1_03-bq78350_R1.bqz . I want yo control COV delay time of threshold...
View ArticleBQ34Z100-G1 Update Status during optimisation cycle NiMH
(Please visit the site to view this file)Hi,I'm trying to perform an optimisation cycle with a battery pack NiMH. All the flags seems to change correctly but the update status remains at 4, the Max...
View Articlebq27500 Learning cycle failure - Qmax instability
I am using the HPA291 dev. board to characterise a battery system composed of a bq27500-v130 and a paralleled pair of LiPo cells (each 1400mAh nominal capacity). The problem is that at the end of the...
View Articlebq34z100 Qmax learning
Hello,i have problems to calibrate the Qmax of the battery.I use the bq34z100 with bqStudio 1.3.45 and the Charger is a bq24170.The Battery properties are:7Cells parallel Panasonic NCR18650B.Capacity:...
View ArticleHigh Capacity Battery Fuel Gauge
HelloI am using BQ34Z100-G1 to monitor the state of charge of a truck battery. The battery is 225Ah with max current of 1200A, although in practice it does not go beyond 300A. It is a 12-cell lead acid...
View ArticleBQ34Z100G1 NiMH Data Memory Setup Delta V Clarification
We have built a NiMH battery charging circuit using a BQ34Z100G1 gas gauge which is monitored by a blue tooth control IC with I2C communications. The blue tooth controls charging and discharging based...
View Articlebq33100 EVM capacitance and esr calculation
Hello,I work with the bq33100 EVM. I connected 5 caps (everyone with 25F, 42mOhm,2.7V) to the board. The value of capacitance I expected was 5F, but the measurement from the board is 52F when I...
View ArticleBQ78350 SMBus sink current maximum
Hi everybody,what is the maximum sink current for the open drain smbus (SMBD and SMBC) pins on the BQ78350? I cant find these values in the datasheet and I need this for calculating the right...
View ArticleBQ34Z950 DFI Programming
I am in the process of writing firmware for the MCU on my circuit board that will write the DFI file to the BQ chip and then perform calibration. I found the document (SLUA-379E) on doing this for the...
View ArticleBQ40Z50-R1 / difference from BQ40Z50
Hi all.Please tell me the difference between BQ40Z50-R1 and BQ40Z50.If you have good document, pleae give me.Best Regards,Sho Ogane
View ArticleLearning cycle for Bq40z60
Hi Tom ,Good day...I am try to use bq40z60 in our battery pack, I had purchase BQ40Z60EVM and EV2300.I had made set up as per user guide SLUUB71. for 3S1P battery pack with Samsung SDI lithium ion cell...
View ArticleBQ27532 configuration by host
I'm looking for the fastest way to implement BQ27532 in my system (standalone, not communicating with charger). Since there's so much scattered and likely outdated information available for this family...
View ArticleBQ3060 seal command
What is the purpose of seal command, besides blocking access to extended commands and data flash?Is there any ill effect if left unsealed for production?If sealed, is there a way to turn off FETs?
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【BQ78350】 trigger OCD & OCC at the same time
I have a situation that the motor would let my BMS trigger OCD & OCC at the same time.After OCD(Overcurrent Discharge) triggered, OCC(Charge Over Charge) triggered.And I couldn't recover Charge...
View ArticleBQ27210 SOC Problem.
Hi,Am using BQ27210 battery sensor with DTP 602525 Li-Polymer cell (340mah) for battery charge measurement. Am trying to get battery charge percentage from RSOC register but it is giving abnormal...
View Articlesenc and dffs File For BQ27531 with Battery NCR18650B
Hi team,would you please help to provide the senc and dffs file for bq27531 with below battery Chem ID 2017, as we can't find bq27531 in bqstudio and also can't find this function in bqEVSW.BQ27531...
View ArticleBQ34z100 LEDs going down but not up
Hi AllI'v been hammering at the bq34z100q1 for a week or so.My setup.I2C comms with 5 LEDs. 3 cell series ( Li-Ion pack 5200mAh at 11.1Volt)I can communicate with the bq34z100g1 via EV2300 on my custom...
View ArticlePacket checksum mismatch
HiI have found the chemical file for my battery pack using bq34z100.When I try to "update chemistry from database" using ev2300 using I2CI get an error "packet checksum mismatch". Why?Kind regardsBen
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