BQ27200 EEPROM needed or not
Hi all,it is a topic that was discussed here before but not cristal clear and it is pretty crucial for design.We plan to go into mass production with this chip and our designed PCB containing it.we...
View Articlebq34z100 TS pin pull-down
What is the pull-down resistor value on the TS pin inside the bq34z100? I want to calculate what volatge appears at TS and what current flows through the external thermistor (e.g. Semitec 103AT)? Is...
View Articlebq77910A polling question
We have prototyped and are considering a stacked 77910A solution to provide protection for a 16s design. The 16s battery pack in the end application can also be in parallel with other 16s battery...
View ArticlePerform Open Circuit Voltage Reading -- bq20z65
Hello!In the documentation, it says that in order to update QMAX and reduce the max error, we need to perform two open circuit voltage readings. There is no documentation on how this should be...
View Articlebq77908a min voltage on EEPROM pin
I didnt find in then spec the min voltage for programming the EEPROM. I saw in the application diagram that they are expecting 14V and the pin max is 15, but what's the min voltage for writing EEPROM?
View ArticleBQ3060 Design Voltage cannot be set lower than 7000mV?
I am trying to use a BQ3060 to monitor a 2s LiFePO4 pack. The BQ3060 seems to work well, except I cannot set the design voltage to 6.6V to reflect the voltage of my pack. Is there anything that can...
View Articlebq20z90 4s2p to 4s3p Reconfiguration Assistance
Greetings,We have a customer who has a working implementation of a 4s2p w/ no LEDs using bq20z90, and is looking to create a new design with a 4s3p w/ 4 LED indicators. The hardware side of the problem...
View Articlebq30z50 / bq30z55 and Evaluation Software
Hi.Where can I download the bq30z50-R1/bq30z55-R1 Gas Gauge Evaluation Software ?
View ArticleBQ27425 Files and clarification
Hello:I've been searching the forums for more information on our particular situation. Essentially, we want to be able to upgrade the BQ27425G1 chips we have to BQ27425G2 versions. For this we need a...
View ArticleHow to exit ROM mode on BQ20x655-R1
What is the proper way to exit ROM mode on this device?I can enter ROM mode. (enter 0x0F00 as a 2 word command on the SBS page)I can then download the .senc file. (Flash Memory-> Read to File)After...
View Articlebq26200
Dear siri am working on Bq2019 and want to replace it with the BQ-26200 can you tell how to calculate the value of Rom and Ram file?RegardsTanvi Verma
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Not getting correct values in battery capacity fields
Using a primary 9.6V battery, I believe i have set all necessary values, and calibrated, how can it see 100% SOC and it only thinks I have 1maH of capacity when i connect the battery? I load the...
View Articleneed help in usage of bq3060 with BqEASY
Hello,We are using LiFePo4(6.6V,9.6Ah) battery pack in 2s3p configuration with BMS IC (bq3060) inside it purchased from a vendor. we need to check the battery performance with BqEASY,we have done...
View ArticleWriting DFI File at production.
Hi, I have a bq27510 EVM and an MSP430 microcontroller connected via I2C. I have succesfully communicated to the gauge and have read values such as control status, flags, temperature, voltage, etc.On...
View Articleflashstream and dfi
Hello,Like others in this forum, i need help with programming our gas gauge (BQ27500-v130) for production. Could someone send me the latest version of flashstream and anycode (preferrably in C) and...
View Articlebq27510 data flash writing
Hi,I'm trying to configure the bq27510 Gas Gauge without using the user interface, since I don't expose the SDA/SCL pins.I've read the datasheet and various threads on this forum, but I still have...
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how can I read data from bq34z100 I2C_write,I2C_read ?
HiQuestion:Average currentvalue ofBQ34z100fromI2C - 1 bytedatareadsIteupnidaverywell.CURRENT: 0x0018 ->olryeogotoreadthe current valueReturns the instantaneous current measured by the...
View ArticleVEN duty cycle on bq34z100
I want to know what the duty cycle is for teh VEN pin on the bq34z100. I'm using the VEN pin to gate the BAT signal. This is a multi cell application and I am using a voltage divider. I want to know...
View Articleneed help reset command bq34z100
I wanted to start over, i see the status listed as 06 (under data flash - gas guaging tab), using eval board, so I went to the control field under the data ram tab, entered 0041, hit return, but the...
View ArticleBQ27X00-TESTER programming issue
Hello, I have connected the BQ27X00-TESTER to my current product that has a BQ27200 device populated. Between the tester and my product, I've wired...* PROG to our PGM (pin 10) of BQ27200* BAT-...
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