Forum Post: RE: Maximum Battery Capacity Supported
The maximum capacity is actually a limitation of the device itself. Using batteries larger than the maximum capacity can result in issues with reported State of Charge in certain cases. There is a...
View ArticleForum Post: RE: BQ20z95 measures no current if bus lines low
Thank you very much Jason. I already thought that this could be the problem, but i thought that auto-calibration is only done when no current is flowing.There is no reason to pull the bus lines low but...
View ArticleForum Post: bq20z60 - StateOfHealth register vs. Sealed mode
Hi,we are using a battery pack which contains the bq20z60 as its fuel gauge. I am wanting to read the extended SBS command StateOfHealth register, but the device is in the sealed mode from the battery...
View ArticleForum Post: RE: bqEASY step 2B "maximum taper current"
BQ27541 documentation for firmware G1 had better explanation than V200 firmware documentation. I found the answer in slua656.pdf
View ArticleForum Post: RE: BQ24040 Vin=10...30V ?
Hi Ryan,To give you a better explanation about my noise issues, I'm not afraid of failing EMC tests, but to disturb the -150dBm sensitivity receiver stage of the radio next inch on the same PCB :)Under...
View ArticleForum Post: RE: Bq34z100EVM communication problems with EV2400
I have changed Q3 and now works super .Thanks for all your help.
View ArticleForum Post: RE: How to switch of PMID o/p when using battery?
Hello Lewis,Which BQ device are you using?
View ArticleForum Post: BQ24100 Charger questions
. I am looking at incorporating the bq24100 switchmode Li-Ion charger for the “base” charger to charge our new project’s removable battery. I have gone through the datasheet, calculated out all my...
View ArticleForum Post: RE: BQ2416x - USB Suspend
Hi Jeff: The way I understand it, contact detection (USB BC1.2 calls this Data Contact Detect) occurs before primary detection. Contact detection starts when Vbus (USB supply voltage) is detected. At...
View ArticleForum Post: RE: bq24650 / removing the D1
Hello Ryuji san,I am glad that you the reason for the temperature difference has been cleared up.Have you looked into ORing FET controllers such as the LM5050-1 or LM5050-2? It will allow the current...
View ArticleForum Post: RE: Bq34z100EVM Problem
Ryan,The FET is located in the REGIN power path and we used a 2N7002. You could use a similar FET that you may have available. It just forms a simple linear regulator.Tom
View ArticleForum Post: RE: BQ24278 and BQ24253 MAX input voltage
Dear Wang,The selection tool is the thing that confused me in the first place. I think they dont have all battery chargers listed on it, so the only 2 that it showed had the input voltage range to...
View ArticleForum Post: RE: IC with PowerPath and cell balancing for two LiPo in series...
[quote user="Jeff F"]Two bq24230 in series will not work reliably. I suggest moving to a 2-cell charger and adding a cell balancing IC.[/quote]Jeff,Thanks for the response.Would a combination of...
View ArticleForum Post: RE: bqTester for bq34z110
I added the bq34z110 to the initialization files. Please extract the attached files and place them into your bq Tester directory and see if that helps.
View ArticleForum Post: RE: BQ24031 - Relation with BAT voltage
Hello Hirotaka,When VBAT is below 3.0V the device will operate in precharge mode which is a constant current charging with a current that is below the designated fast charge current. This magnitude of...
View ArticleForum Post: RE: BQ27541-G1 Pack Configuration register differences in...
The Gauge Studio register is the correct one. I'm not sure where the one in the app note was pulled from.
View ArticleForum Post: RE: bq77908A: OCD/SCD fault recovery possible with partial load?
Looks like what we want to do will be problematic, if not practical at all. We'll carefully consider the options you mentioned and see what might work best for our application. Thank you for your time...
View ArticleForum Post: RE: bq34z110 update status
George, The change in DOD was only 73%. Please provide an email address and I will provide some parameter changes to help with the optimization cycle. Tom
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