CPCKN pulldown design
Hi guys,in bq77908a's datasheet its written down that there are recommended application circuits for the CPCKN pulldown (page 7), when series FETs are used.Can you please send them to me or give me a...
View ArticleBad HF Dynamic Impedance values leading to cell balancing problems and DEAD PACK
Hi,Recently I came across an issue regarding bad HF dynamic impedance values after a certain stage of production.The bq78PL116 is powered for a short period of time on a PCA where measurements are done...
View ArticleBQ34Z100 & Primary Li-ion Batteries
Can the BQ34Z100 be used with 8S2P primary, non-rechargeable, Li-ion AA batteries (12 V @ 6 A) ?Will the Impedance Track S/W work with Primary batteries ?
View Articlebq34z100
hello, I use the IC bq34z100 to detect the capacity of 1S LiFePO4 , and the circuit I referenced the datasheetFigure7. 1-Cell Li-Ion and 5-LED Display , I am not sure the circuit will...
View ArticleAdvanced BQMtester HPA495 TIbqMultiStationNB2.18Setup.exe with BQ20z65R1 v1.05
Dear all,we use the BQ20z65R1 v1.05. We want to use the advanced BQMtester HPA495 Softwareversion TIbqMultiStationNB2.18Setup.exe, to flash and calibrate the BQ. The problem is, that we don’t have the...
View ArticleThe difference of BQ27510-G2 and BQ27510-G3
Hi Guys, I would like to know what is the difference between BQ27510-G2 and BQ27510-G3?Can anyone please help to advise.Regard'sJason.
View Articlebq24105 CE pin
hi, I use bq24105 to charge 1s lifepo4 , the pin of CE was connected to ground , and it worked normally .Now, I want to stop the charging ,so I connect the CE pin to the Vcc(high...
View ArticleBQ77910A Continuously current drain issue (balancing)
Dear all,I´m running the BQ77910AEVM together with a Li-Ion battery pack which consists of 10 cells connected in series. I got one big issue: When I´m charging or discharging the pack a continuously...
View ArticleValidation of Software
My company produces medical devices and are required by the FDA to validate our software. One of our products uses a battery that is evaluated and calibrated by the bq2060AEVM-001 and bq2060AEVM-002...
View Article. bq34z110
Are there any differences between the . bq34z110 and . bq34z100? The electrical specs look identical.
View Articlebq27410-G1 gas gauging device
I would need support on the bq27410-G1 gas gauging device. I need to know if for this particular device the selecting of the right cell-chemistry is possible (over EV2400 and the bqEASY)? The customer...
View Articlebq20z90 OCD thresholds
I am looking for some assistance with the overcurrent thresholds on the bq20z90-v150. I am using the bq20z90-v150 and bq29330 in a 3s3p configuration. I have the OC (1st tier) Dsg set at 3.0A and OC...
View ArticleBQ34z110 Design Capacity and Energy scaling Factor
Hi All Please can someone help me understand the Design Capacity and Energy scaling factors. I have a battery pack that consists of 4 12V batteries in series thus 48V nominal and 86Ah capacity, Charged...
View ArticleX10 mode in bq34z110
I am trying to change the mode to X10. After changing the mode to X10 using Bq evaluation software. I canot see any change on the Data RAM parameters.1. How to configure the X10 mode correctly?2. Does...
View Articleusing I2C with bq27520EVM
Hi,I have a bq27520EVM (HPA568 Rev. A). I am trying to use I2C communication between the Evaluation board and Arduino Uno where Arduino is the master and bq27520EVM is the slave. I have set-up the...
View ArticleReading the cell impedance growth-rate ratio counter
Hi Im using the bq78pl114 battery management and Im having problems with IGRR. Can anybody please tell if there is way to read the value in the cell impedance growth-rate ratio counter.ThanksStephen
View ArticleVoltage cell calibration after FW update BQ78PL114S12
Hello,We have problem by updating FW of BQ78PL114S12 to 5000 with APIWe have seen that after update the calibration of some cells is not correct.What is correct sequence to update FW with API.Shoud be...
View ArticleBQ20z95 replace with BQ20z65
Hello,I am using BQ20z95 in a large scale and at this point it is not possible for me to go to another Circuit.So i need a favor from you.I need a Crystal Segment Display in Place of LED Display i...
View ArticleHigh Voltage Gas Gauges?
Hello,We are aiming to implement a gas gauging system for a 96V (nominal) multicell Li-ion pack. I see the bq34z100 is the closest to meeting this requirement but cannot accept over 50V. Would it be...
View ArticleConfigure VTI problem with advanced bqmtester on a 3 cell board
I am working with an HPA495 Advanced bqmtester. For the most part it is all working. But I have a problem when trying to calibrate the VTI. It may simply be how I wired it up. > > My board is a...
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