BQ27421-G1: Saving and restoring battery parameters to and from BQ27421.
Part Number:BQ27421-G1Hello - I have some questions regarding the operation of the BQ27421 and had trouble finding it in the documentation.QMAX_UP and RES_UP It is recommended that the Qmax and Ra...
View ArticleBQ27421-G1: BQ27421-G!A: the firmware version
Part Number:BQ27421-G1Our project used the TI BQ27421-G1A gauge.1) We found 2 firmware versions of the gauge ICs by reading Control() SubCommand -- FW_VERSION.1-1) The firmware version of the gauge ICs...
View ArticleBQ27421-G1: BQ27421-G1A: calibration for different firmware version
Part Number:BQ27421-G1We used the TI BQ27421-G1A gauge in our project.1) And we found 2 firmware versions of the gauge ICs by reading Control() SubCommand -- FW_VERSION.1-1) The firmware version of the...
View ArticleBQ27421-G1: BQ27421-G1A : the golden image for 2 firmware versions
Part Number:BQ27421-G1Our project used the TI BQ27421-G1A gauge.1) We found 2 firmware versions of the gauge ICs by reading Control() SubCommand -- FW_VERSION.1-1) The firmware version of the gauge ICs...
View ArticleBQ27426: bq27426 OTP
Part Number:BQ27426Hi Team,Please let me know if bq27426 is supporting OTP feature since we can create ot.fs file vis bqStudio. If yes, which pin I should apply 7.4v when using SmartFlash program.
View ArticleBQ27542-G1: What's the best suited Gauge - LiPol 4000mAh
Part Number:BQ27542-G1Hi,Right I've selected a charger: BQ24190Battery type: Lithium-polymer 4000mAh - single cell (3,7V nominal) - we plan Max Charge current: 3A max from Usb/plugThe design is...
View ArticleBQ76920: BQ76920 REGOUT current
Part Number:BQ76920If I use BQ76920 with its REGOUT powering a BQ78350-r1 and other circuitry, up to the REGOUT current limit of 20mA, is that factored into the state of charge? I would guess that...
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BQ27421-G1: Unexpected Full Charge Capacity Behaviour inBQ27421
Part Number:BQ27421-G1We are observing an issue where the Full Charge Capacity (FCC) value will change shortly after a cell has discharged to it's termination voltage.The following is a plot of several...
View ArticleBQ20Z60-R1: bq20z60-R1. Potentialy I2C problem
Part Number:BQ20Z60-R1Hi,I'm working on a product that used a battery which has the bq20Z60-R1 internally. I know that the bq20z60-R1 has to be used with an SMBus. In our product, we use it on a...
View ArticleBQ27510-G3: BQ27510 and EV2300 learning, I2C problems
Part Number:BQ27510-G3Hey everyone,I'm working on a project which utilizes the BQ27510 gas gauge to monitor the battery charge. I'm trying to do a learning cycle with my battery on a prototype board,...
View ArticleBQ27541: SCL stays low after few battery pack insertions
Part Number:BQ27541Hi Friends,We have encountered a situation where the SCL stays low on the battery pack side after few insertions into our tablet.We isolated the I2C lines on the tablet and the...
View ArticleBQ27531EVM: Difficulty achieving Learning Cycle with BQ27531EVM Demo Board
Part Number:BQ27531EVMHi, I've been trying to achieve successful learning cycle but I keep on getting bumps along the way.I'm using SLUA597 app note as reference.1. I never see the FC bit get set even...
View ArticleBQ27742-G1: want to modify Design Capacity into bq27742-g1
Part Number:BQ27742-G1I have some doubts in accessing data flash like, after the unsealing press of fuel gauge.There is requirement of any kind of bit setting like CFG_UPDATE in bq27441 ?. if yes then...
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BQ27426: Configuration
Part Number:BQ27426Hello,I've been reading the BQ27426 datasheet, Technical Reference (sluubb0), and the Quickstart Guide (sluuah7b), as well as some threads on this forum, but I still have some...
View ArticleBQ40Z60: Sizing the CHG/DSG FETs for Quadcopter Design
Part Number:BQ40Z60Hello,Project BackgroundI'm working on the power portion of a quadcopter design. Currently we are powering our electronic speed controllers (ESCs) using 4 cell LiPo battery packs...
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BQ27520-G4: bq27520-G4 / Srec file can be programmed with no thermistor...
Part Number:BQ27520-G4Hi,My customer plan to program srec file at their production line, but then apply VBAT but thermistor is not connected. Then can we program srec file correctly without thermistor...
View ArticleBQ34Z100EVM: How do I set the VOLTSEL bit in the Pack Configuration register...
Part Number:BQ34Z100EVMI am trying to configure my bq34z100evm to be able to take votages above 5 V. How do I set the VOLTSEL bit in the Pack Configuration register in bqStudio?
View ArticleBQ40Z50-R1: unable to wake chip or FET problem
Part Number:BQ40Z50-R1Hi, I'm using the BQ40Z50-R1 chip to simulate a battery and I am using the suggested reference design schematic provided. The issue I am seeing is when I apply voltage (16.8v) to...
View ArticleBQ20Z45: Flashing locked up BQ20Z45 with MSP430 Launchpad (msp430g2553)?
Part Number:BQ20Z45I have a laptop battery that is locked up after being stored without usage for too long. My laptop would not charge it, so I've disassembled it and charged individual cells to 3.7...
View ArticleBQ40Z60: BQ40Z60 alert pin function
Part Number:BQ40Z60Hi,I only see battery low trip function on alert pin.Can this alert pin indicate over temperature by using TS pin (thermistor)?If no, is there other way to implement over temperature...
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