bqStudio perspectives
1. Where are the bqStudio Perspectives saved? I'd like to delete the ones I no longer use.2. Is it possible to copy a Perspective from one PC to another? (Guess that depends on the 1st answer!)Thanks.tom
View ArticleHow do I access BQ2425x charger registers from BQ27532?
Folks,We have a system where we are connected to a BQ27532 via I2C to our ARM. I finally worked out how to read the BQ27532 registers over this I2C interface. We also have a BQ24250 connected to the...
View Articleb40Z50-R1 factory/default senc/srec
does someone have the factory default senc/srec for the 40z50R1? I have some test mules that I would like to start over from scratch on.Thanks!-Matt
View ArticleBQ30Z55 VS BQ40Z50
Hi Look like from TI website BQ40Z50 is the replacement chip of BQ30Z55. What are the different between these two chips?ThanksIan
View ArticleBQ34z100-G1 Cell charge voltage Tn-Tn+1 parameters description
Hi again!Is there a description of the "Cell Charge Voltage T1-T2,... T2-T3.., T3-T4" parameters? And likewise the Cell Charge Current T1-T2... parameters?I am not quite sure how to accurately...
View ArticleBQ2060a reference design or legacy design
Hi ,We are looking for an inexpensive reference design, or an existing design for a battery charger utilizing the BQ2060a to charge two 24v 8AH NIMH batteries from a 32v source, and also light up a LED...
View ArticleBQ78350-R1 Technical Reference Manual Sep 2015 does not match Battery...
Hello,I'm programming my BQ78350-R1 using battery management studio and have come across a discrepancy. In the Technical Reference Manual (page 16), the DA Configuration register is supposed to be:Bit...
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BQ40Z50-R1 for LiFePO4
Hi，Now， I use bq40z50-r1 for LifePO4.I can not turn on CHG&DSG FET.There are so many parameters and I don not know what the mather is.For LiFePO4, could you please give me a referent parameters or...
View ArticleGauging Parameter Calculator / config file
Hi everybody,Because your mail address 'gpc_support@list.ti.com' doesn't work, I try it this way. We are develobing a battery pack and I'm using BQ78350-R1 as gas gauging IC. For the online tool...
View ArticleTrying to find a second source for the chemical fuse
Hi,we are working on a battery pack design with a 2P2S solution and BQ40Z60.Following the reference design and also would like to use the chemical fuse SFH1412B.However since it´s a 2S pack I assume...
View ArticleBQ34Z110 Field Failures
We have just introduced our product into the field and we are now seeing the BQ34Z110 gas gauge fail on most of the units. The failure is that the REGIN goes short circuit to ground, REG25 goes short...
View ArticleAbout LOAD MODE
What is the criteria to choose between CONSTANT CURRENT or CONSTANT POWER, LOAD MODE = 0 or LOAD MODE = 1?Thanks.
View Articlebq40z50 firmware bug?
Run this sequence of commands in the Advanced Comm SMB on bqStudio:1. Write Block: 06 00 = 0x0006 ChemID read2. Read Block: 06 00 60 04 = 0x0460 = correct3. Write Block: 20 00...
View ArticleAccuracy of the bq27621 fuel gauge
The accuracy of the bq27621 fuel gauge is disappointing. In particular the state-of-charge (SOC) indication appears substantially too low when the battery is heavily loaded. This indication falls below...
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BQ40Z60 charging problem
Hi,We're trying to bring up a custom board based on the bq40z60 EVM design. We've gone through the configuration and calibration process, but charging won't start. The design uses a 3S configuration...
View ArticleGas gauge for lead acid battery bank of 107 cells
Hello,I\m trying to find a good solution for our Company. We have multiple battery systems around the country, batteries are almost always full and rarely discharged at all (except for discharge test...
View Articlebq27425 EVM error in neasured voltage and Avg current
Hello,I have a bq27425 EVM connected via I2C by a microcontroller. I don't use the interface EV2400 and the EVSW software. I made a driver to control the fuel gauge by which I can read/write RAM and...
View ArticleSMBus communication distance
I have a question regarding distance from the gas gauge IC to the SMBus communication receiver. Our customer is questioning whether the communications protocol is sufficiently robust to handle a...
View ArticleBQ27532 locking up
I have a customer with the following issue:Having trouble with the TI gas gauge BQ27532, sometimes it locks up and returns the value 0xFFFF at every I2C transaction. I can't seem to do a soft reset and...
View ArticleBQ40Z60 Vchg(on) and Vdsg(on) too low and won't wake from battery pack
Hello,Like others I've used the eval board as a guide in making a custom board. I'm using 3 LiPo batteries to make a 12v battery pack. I've got two problems common to all the boards I've tested that...
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