Forum Post: RE: bq20Z45-R1 DSC Fet Drive Problems
Mark,The DSG FET charge pump is powered by the PACK pin. The PACK pin should pull down when a load is applied and introduce enough Vgs across the FET to start the charge pump and turn the FET...
View ArticleForum Post: The difference of BQ27510-G2 and BQ27510-G3
Hi Guys, I would like to know what is the difference between BQ27510-G2 and BQ27510-G3?Can anyone please help to advise.Regard'sJason.
View ArticleForum Post: RE: bq34z110EVM Design Steps procedure. Optimization Cycle problem.
Hi,Looks like there is a problem still.The "update status" didn't change to 06, as it should have.Tried to to the same procedure with a new bq34z110EVM board.Followed the procedures as described....
View ArticleForum Post: RE: WriteSMBUSbytearray() function not working on BQ20z65-R1 for...
FInd attached some additional files in VB that might be helpful.(Please visit the site to view this file) thanksOnyx
View ArticleForum Post: RE: Failing to write block data to NVM on BQ27425
Steve,This problem has been seen in the past. Here is what you should try:The bq27425 requires you to be in Config Update Mode in order to update dataflash parameters. Make sure the CFGUPMODE is set in...
View ArticleForum Post: RE: BQ77908EVM Schematic
Rustin,It looks like the schematic is in the User's Guide (attached).
View ArticleForum Post: RE: FC bit clears during 2 hr Charge Relaxation phase
You can try to charge to a fuller state by continuing to charge until taper current reaches a lower level.What is the capacity of your battery? 20mA taper current is pretty small unless your battery...
View ArticleForum Post: RE: BQ29330 measuring individual series cell voltages
Hi Onyx,Thanks for your answer. I am not using any of your gas guages, but hook up the Cell+ and Cell- pin directly to a MPS430, ADC. I then want to use that value to calculate the Cell voltage. My...
View ArticleForum Post: BQ24086 / Immunity Testing
Hi,Our customer is performing immunity testing for their pre-production board which is mounted bq24086. They performed +6kV as immunity testing and then the charging was stopped at fifth time of...
View ArticleForum Post: RE: BQ24091 CHG- pin is not going high
I think we have found the problem and it is somewhat related to your comment on pull-ups. We are using a microprocessor that allows you to pull-up a port (8 pins). What I didn't realize is that when...
View ArticleForum Post: RE: BQ76PL536 EVM : false measurement result
Hi Raphael,We test every EVM before it leaves TI. How do you connect power supplies or cells to PL536 EVM?You can find the guide line from the user's guide.Check that and let me know. thanks
View ArticleForum Post: RE: BQ76PL536A: change address to BQ
I just want to make sure I understand you correctly.You have 2 PL536s on one board. Does it have own uC? If that's the case then you can have 3rd IC to address 01.I need to see your block diagram...
View ArticleForum Post: RE: BQ34Z100 chem ID
David, We can characterize your cell and create a ChemID. I will contact you off-line to provide information on submitting the cells.RegardsTom
View ArticleForum Post: RE: bq24160 Charge Termination Anomaly
Others have solved this problem by either:1. using a gas gauge to control termination and disabling termination on the charger or2. setting the NOBATOP bit to 1 and disabling reverse boost protection...
View ArticleForum Post: RE: "Non-host control" SMBus Charger System (w/ bq20z65-R1)
Hi John,Setting the [Bcast] bit in operation cfg B register in the data flash enables broadcast. The bq20z65 uses slave address 0x16 on SMB for communication.Refer to section 2.5.1, 2.11.2 , 2.11.3...
View ArticleForum Post: RE: EVM BQ25504 with solar panel
Is the bq25504 switching? Is there a square wave at the LBST pin? What is the BAT_OV setting? With that much current going in, you should have more than 1mA coming out. Is anything else connected...
View ArticleForum Post: RE: What resistor values I need to select for using solar cell...
Try the attached spreadsheet.
View ArticleForum Post: RE: Regarding bq24075 Li-ion charger with System Load
The TPS61032 does not auto turn off when the voltage at LBI drops below 500mV. Also, if the TPS61032 EN pin is low, LBI/LBO function is disabled.
View ArticleForum Post: RE: Problem! BQ34Z100 "Passed Charge" is resetting itself every...
Ilja,It is not uncommon to see SOC jumps during the learning cycle. We have also found that having FConvEn set to 1 can seem to make it worse. You can try setting this bit to 0 in the Operation...
View ArticleForum Post: RE: bq32z110EVM PACK-, BAT- and system Ground connections
Isak, Option 3 is the normal implementation. You are correct that the sense resistor will introduce an offset in the I2C waveforms, bit it should not be enough to cause a communications error.RegardsTom
View Article
