Configuration BQ27510 without EVSW
I want to modify 5 values. Charging Voltage, These are Taper Current, Initial Standby Current, initial Max load Current and Design Capacity.I didn't make I2C via connecting with EV2300?. So I should...
View ArticleBA34z110 - will it be helpfull in detecting single cell fuel guage ?
Hello Team, I am beginner at Hardware level, i found in datasheet that between pin SRP & SRN(9 & 10) there is sense resistor of about 5 to 20 mohm. but if i am using only single cell rather...
View Articlebq34z110 led modes
From Bq34z110 datasheet:The LED/Comm Configuration register Bits 0, 1, 2 are a code for one of five modes. 0 = No LED, 1 = Single LED, 2 = Four LEDs, 3 = External LEDswith I2C comm, 4 = External LEDs...
View ArticleBQ34Z100 Single Cell gauge not detecting
Good Day,We recently bought the BQ34Z100EVM (Evaluation Module) and the EV2300. Our application involves gauging a 4x Series (4S) LiFePO4 battery pack. Our first test was on a single cell LiFePO4 and...
View ArticleBQ20Z75 calibration
We are using BQ20Z75 in one of our smart batteries. According to our current battery packer information, they are performing 1 charge and discharge cycle to calibrate the fuel gauge IC.We are planning...
View Articlebq20z75-v180 Smbus max pull-down current
I'm having noise issues talking to a smart battery pack that internally uses a Benchmark bq20Z75-v180. I've found that if I violate the Smart Battery v1.1 spec, which in turn, references the System...
View ArticleQuestion regarding to BQ34Z110EVM and EV2300 for the usage on electric vehicle
Hello,My team is currently doing a project on electric vehicle. All the connections for the AC motor and lead acid batteries are done. Now, the next steps is monitoring the SOC and SOH of the lead acid...
View ArticlebqTester for bq34z110
I'm trying to read ROM file from bq34z110 as described in SLUA665 "Going to Production With the bq34z1xx".Unfortunately the "bqTester ROM Imager" from slvc109.zip (bqTester 1.02) doesn't recognize...
View ArticleBQ34Z110 optimization at less than C/10
Hello,We have a large battery bank (110Ah 24V) which will see a typical load of 2.5A, max of 4A and our shunt is designed for 5A.To run an optimisation cycle, everything says we should use C/10 which...
View ArticleBQ783xx
Hello,In the BQ76920 datasheet a Companion Controller IC BQ783xx is mentioned.I cannot find this product family (BQ783xx) in the catalogue.Please provide a link to the aforementioned device.Thanks!
View ArticleState of charge determination without current measurement
Dear forum members,I would like to know if there is a TI part that can determine the state of charge of a battery based only on the battery voltage. The battery chemistry is LiFePO4, which makes this...
View ArticleFuel Gauge IC Max Design Capacity
Hello,The max design capacity in mAhr as listed for most of the TI fuel gauge IC's is much lower than specified in the datasheets. For example, in the parametric data listed for the bq20z90-v150, the...
View Articlepassword unseal method bq20857
Hi ,can u tell me how to unseal the password in bq 20857 .already i have the ev2300 device.i donot know how to read?
View ArticleBQ20Z65-R1 NRND
Hello,Why is the BQ20Z65-R1 not recommended for new designs? There does not appear to be a replacement part that also offers gas gauge cell balancing, rather than simple voltage-based cell balancing -...
View ArticleBQ34Z100 WinCE Driver
Hi,We are planning to use BQ34Z100 Fuel Gauge in our design. Is there a reference Windows CE 6.0/7.0 driver for this device?Regards,GSR
View Articlesoftware bug Bq27x10 Evaluation Software version 1.2.0 with BQ27010EVM...
After a lot works hours with the software Bq27x10 Evaluation software version 1.2.0 I have concluded that my problem was a bug in the software.I have used a Bq2710EVM evaluation module &...
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BQ29700 Wrongly Tripping
I have an application with a Li-Ion Poly battery soldered to my board. I put BQ29700 on my circuit board to provide protection against over current (act as a resettable fuse) and undervoltage damage...
View ArticleUse TI-27621-G1 gauge to update RAM parameter but get FAILURE and why?
When our device insert battery (4200mAh) for the system, I would like to update RAM parameterby changing default 2425mAh to 4200mAh to get correct charge info from gauge. but when I follow spec’s...
View ArticleChemistry selection tool problem
HelloI have some trouble finding out the chemid with the chemistry selection tool. When I do the calculation for the chemid MathCad just says that the bestchem variable is undefined as are maxerr and...
View ArticleBQ30Z55 enter TCA&TDA mode
our products enter TCA&TDA mode during test，please help comment what reason result in the case？By the way， how to recovery the case ？
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