Forum Post: RE: Bq20z65 Activation issue
My last experiment was to take the chip from the EVM module which works fine, and solder it on the prototype.I still have the same problem, so I suppose that something in the electronic diagram is...
View ArticleForum Post: RE: BQ34z100 SoC is decreasing to 94% in a week
Hi Tom,You still haven't answered to my previous post!Two weeks more past since my previous measurement when the battery SoC dropped till 95%. Now the battery SoC is 94% and voltage is 13340 mV, and I...
View ArticleForum Post: RE: BQ24257 doesn't charge with max. current (2A)
Thanks Miguel, this already solved my problem.
View ArticleForum Post: RE: Charging LiPo batteries in parallel
Here is a post where this question was addressed recently.http://e2e.ti.com/support/power_management/battery_management/f/180/p/306675/1067750.aspx#1067750
View ArticleForum Post: Ferrites use for filtering cause error
I am using the BQ24104 to charge a 3.1Ah cell. The charger current is set at 870mA with a taper to 200mA. When charging in C/C mode, we have noticed a problem with RF emissions, so we placed two small...
View ArticleForum Post: RE: Contents of ROM and DFI files
David,The .dfi and .rom files are encrypted, so you will not be able to read them. They contain the full data flash memory, where the gg file just contains the user changeable parameters. You do load...
View ArticleForum Post: RE: Is bq3055 suitable for LiFEPO4 battery chemistry?
The technical reference manual of the device will be a good start. You can download it from the product folder of the device on ti.com. Also you can reference app notes for our other gauges such as the...
View ArticleForum Post: RE: Calibrate battery with BQ34Z100PW
Roel,It looks like you can just use the Design Energy Scale and you will not need to use the X10 mode as long as the Design Energy is the only parameter that is too large. You can set the Design Energy...
View ArticleForum Post: RE: How do you communicate with multiple batteries that are wired...
Ephraim,You will need to isolate the communications interfaces. Some designers have used optical isolator devices, but I do not have any specific devices to recommend.RegardsTom
View ArticleForum Post: RE: BQ34z100 SoC is decreasing to 94% in a week
Ilja,That is normal. The device will wait for 48 hours before running OCV measurements when using LiFePO4 cells. After that time, it will measure the voltage, compare it to the OCV table in the device...
View ArticleForum Post: RE: BQ34z110 optimization cycle
You do not have to use constant current, but do not let the discharge rate drop below C/8.
View ArticleForum Post: Monitoring single Lead Acid cell (using bq34z110)
Hi,We want to monitor single Pb-acid cells (2V) and zeroed in on the bq34z110 IC, but I see that it's starting voltage is mentioned as 4V! Is there no way to use it to monitor 2V cells?Regards,Anup
View ArticleForum Post: RE: bq24600 noise throughout system
I have hacked the board around all day today: changed the ground plane, solid, star, mixture of the two. Nothing makes very much difference. The circuit does work but the noise results in too much...
View ArticleForum Post: RE: Bq20z65 Activation issue
Ok I will do shortly.By the way, I read on other post some advice about unused pins, like FUSE and /PFIN.In my design, they are just not connected.(Please visit the site to view this file)In this other...
View ArticleForum Post: QB24133 Fig 18 Batetry Detection Flow Chart
Hi Charles, fellow forum friendsGood day.I would like to get some feedback on the Fig 18 Battery Detection Flow chart on the data sheet of BQ24133 on behalf of my customer.My customer has done a setup...
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Forum Post: PCB Design Verification required for Gas Gauge "BQ27541"
Hi,We are using BQ27541 gas gauge IC for our battery application. I have referred TI evaluation layout design for our new design which is shown below. So please check and verify the design and Let me...
View ArticleForum Post: RE: Is bq3055 suitable for LiFEPO4 battery chemistry?
Hi Onyx,I have had a look at "Battery Power Management for Portable Devices" by your TI colleagues Yevgen Barsukov and Jinrong Qian. In chapter 4 it states:"LiFePO4, have an almost completely flat...
View ArticleForum Post: RE: Calibrate battery with BQ34Z100PW
I use the constant current mode.So load = 0 and Select = 1.
View ArticleForum Post: Help with BQ2461xEVM
Hello,I have 2S3P Li-Ion battery pack with 3 pin connector (+, - and 10k NTC) to serve as backup power supply in device. I want to use BQ24617 for charging that battery with 12V adapter. In BQ24617...
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