bq27510 Can unseal and seal but not get into full access mode
I have a bq27510 I may have accidently change the full access key on. I can go between sealed and unsealed mode with bqeasy but I can no longer go from unsealed to full access mode. I have read that...
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EV2300 Firmware Update
I have an EV2300 kit (HPA002) and this Version is 3.1c. How to update the firmware to 3.1m?I use this kit for bq2084(SMbus) and work fine. Now I want to use this kit to program bq2022a(HDQ), but it...
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bq20z95 FETs
Hello,The charge FET on my bq20z95 appears to be open, preventing me from charging my pack. I'm not sure how to recover from this state, is there a command for clearing PF flags, such as the...
View Articleprimary multi cell batteries LiMnO2 fuel gauge
I like to use 4 primary cell batteries in serie, typ LiMnO2, and measure the fuel gauge. The design capacity of one cell is 12 Ah. Operating temperature is -40°…70 °C. Can you recommend a TI part?
View Article20z65 LED states
Good afternoon,I am using a 20z65 EVM to evaluate a prototype design. The flash is configured for 5 LEDs. Instead of having the LED indications be 0, 20, 40, 60 and 80% RSOC, I would like to...
View ArticleMeasuring Current between two 12V 250Ah batteries with bq34z110
Hi,I need to measure currents between two 12V lead-acid batteries (250Ah each) and need to monitor SOC and SOH of both batteries.Is this possible with two bq34z110's?|GND|---------|(-) BATTERY1...
View ArticleDesign Capacity is also used by the gauge in RemainingCapacity( ),...
In the document "SLUA656–December 2012", Configuring the bq2754x-G1 Data Flashpage 7Design Capacity stores the typical capacity, in mAh, of the cell being used in the system. DesignCapacity calculates...
View ArticleQuestion about a calibration bq20z90 (and other)
Dear TI specialists, please tell me in which the document can be found the describtion of additional commands and registers that are used to calibrate the voltage, current and other parameters? I have...
View Articleflashstream.exe tool
Hi,I am writing an application to update firmware on an in-system bq27500 gas gauge and urgently need the flashStream.exe tool to create bqfs file from the senc file that I already have (downloaded...
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Howto send I²C COmmand using the Evaluation Software BQ34z110
I want to send an I²C Command to the BQ34z110 with the Evaluation Software (connected with the EV2300). The Communication to the Evaluation Board ist stable and ok.While running an optimization cycle...
View ArticleCALL FOR FEEDBACK: How do you select Power Management?
There are many ways to select power management integrated circuits, we would love to hear your feedback and experiences along these lines for preferred ways to search for power products.Search by...
View ArticleBQ2084-V143 Thermal fuse ???
Hi, I currently design a 4 cells battery changer + manager (protection and gas gauge)In the datasheet of the component (http://www.ti.com/lit/ds/symlink/bq2084-v143.pdf) there is a schematic (p63)...
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Unseal Bq20z95
Hello,I currently work with the softwares BqMtester and the circuit Bq20z95When calibrating the BqMtester has sealed the circuit.Now what is normal, I can not read data from flash memory: I would...
View Articlechem file in the bqwizard
I want the AME11865 (2000mAh) to update in the bq78pl116. In the chemistry selection table, the AME11865 is the 0206 chemical ID but in the bq wizard, the AME11865 is not include. Can I the 0206.chem...
View ArticleBQ34z110 optimization cycle Step 5 VOK always set
Hi,after discharging a 24V 7Ah batterysystem at 700mA till the voltage reaches about 20V (Step 4/5) i relaxed the Batteries (0mA, Voltage increases up to 21V) and the CCA flag was set for a short time....
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BQ33100 4 cell questions
Hello,We are working on a supercap backup circuit that uses the TI BQ33100. While the EVM shows examples for a 5 cell setup, we have a 4 cell setup, and have a few questions that we can't answer...
View Articlebq40z50: Minimum practical sense resistor value?
Can the bq40z50 be used with a sense resistor value lower than 1 milliohm? We have an application that has a steady 5A-30A current draw with pulses, from 300mS-1500mS long, of 80A-150A occurring...
View Articlebq40z50: Accurate SOC even with short high-amperage discharge current pulses?
We have an A123 M1 cell application that has a steady 5A-30A current draw with pulses, from 300mS-1500mS long, of 80A-150A occurring occasionally. The bq40z50 looks like a great choice for the gas...
View ArticleBQ24193 battery charger driver for imx6solo (freescale), with board file...
Hi,I am using bq24193 battery charger with imx6solo processor. The driver i am using for bq24193 is bq24190 code.Here i need a driver initialization script in board file.Can any one provide me...
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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...
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