BQ34z110 programming
Hi,I want to know if BQ34z110 can be programmed using some microcontroller I2C interface?
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Question Regarding Connecting bq27742-G1 Fuel Gauge to BQ24040DSQT Battery...
Hi,This is my first time using a single cell fuel gauge for my specific project and I'm planning to use the bq27742-G1 fuel gauge. However, I just want to clarify if the Rsense, as shown in the...
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bqEasy Automatic Chemistry Selection Fail
HiI ran the automatic chemistry selection tool in bqEasy and got this error at the end "Run-time error '9': Subscript out of range", when selecting "Match Best Chemistry".I didn't skip any step in the...
View Articlebq34z100 / encrypted software
Hi Team, I'd like to ask if bq34z100 includes encrypted software.I heard that the information is required if my customer exports the device. Best Regards,Yaita / Japan disty
View ArticleClearing PFIN flag
Hi, How do we clear the PFIN flag in bq20z90 used for a four cell gauging application? We're unable to reset the PFIN timeout to 0 sec as the PFIN flag is already set not allowing write operation in...
View Articlez75-v160
For the z75-v160, may I request verification of the Reserve Capacity units: Reserve Cap-mAh: signed integer, 2 bytes, value 0 - 9000, mAh Reserve Cap-mWh: signed integer, 2 bytes, value 0 -...
View Articlebq27441-g1
Hi, I am trying to implement the fuel gauging into our design, but I don't have much experience with fuel gauge chip. I have couple questions regarding BQ27441-G1. 1. From my understanding BQ27441-G1...
View ArticleDesigning a 4 Cell LiPo charging system with undervoltage protection using...
Recently Ive been given the task of sorting out LiPo Battery Charging for a project Im involved with. Id like some advice please.1: I can find charger ICs and Gas gauge ICs (which appear to perform...
View ArticleRegister Map for the BQ40Z50
Can someone please point me to the Register Map for the BQ40Z50. Ive looked in both the technical reference and the Data sheet, and neither (seem to) contain the full register map.
View ArticleBQ78350 charge disable register
Hi,We are trying to set up the protection on the BQ78350 to monitor/control battery charging.In the Technical Reference Manual SLUUAN7 Rev. A section 5.5, the conditions to disable charging are...
View ArticleBQ78350 discharge disable
Hi,We are currently trying to set up the protections on the BQ78350, and I would like to know what conditions trigger OperationStatus()[XDSG] = 1.So far, I have only found that UTD sets the bit, but it...
View ArticleBq34z110
my project is to design bms so for that I need to find soc accurately.so I have chosen bq34z110 as my cell chemistry is lead acid.my doubt is inorder to use this ic do we need EVM or can we use...
View Articlebq34z100 charge overflow
I'm using a bq34z100 in an application with this battery from...
View ArticleThe absolute-maximum-rating value of BQ20Z45
Dear, AllAbout the absolute-maximum-rating value of BQ20Z45-R1, the following is indicated to the datasheet. - Operating free-air temperature range -40℃ to 85℃ - Functional temperature -40℃ to 100℃...
View ArticleThe over charging current protection for bq77910A
Hi Sir,We would like to use the bq77910A for ebike battery pack application (24V/36V) and we checked it spec there was not a over charging current protection in it. Can you suggest us how to add the...
View ArticleBQ76PL536-Q1 Fluctuating Voltages
Hello Community,we have problems with strongly fluctuating Voltagemeasurements.For testing, we build the curcuit from the datasheetand, with 3 chained BQ76PL536-Q1 and SPI communication with the...
View Articlebq77PL900 or bq76930 separate charge/discharge paths?
Can either the bq77PL900 or bq76930 be used in a configuration that has separate discharge and charge paths?
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Using BQ27541EVM with Battery Management Studio
I am setting up a test setup for single cell Li-ion battery using BQ27GDK000EVM and BQ27541EVM so I can evaluate and automate test cycles. After launching Battery Management Studio (bqstudio) and...
View ArticleLost register in bq78350
I can't find the register "Min SAFE Activation Voltage" (end of section 4.3 in bq78350 TRM) in bqStudio nor can I find it in the Data Flash Summary Table (18.1).Does it really exist?Frederic
View ArticleNTC with bq27541
In the datasheet of bq27541,The thermistor circuit requires the use of an external 10-kΩ thermistor with negative temperature coefficient (NTC) thermistor with R25 = 10 kΩ ± 1% and B25/85 = 3435 kΩ ±...
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