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bq27500
Related Posts

  • Forum Post: Re: Golden Image Firmware (DFI) update on bq2750x

    Ming Yu
    Hi, I was talking about the DFI version. For example, if the DFI is generated using FW ver A. You CAN NOT load it into FW ver B. Once it is locked up, the only way is to remove the IC and replace it with a good one. Please refer to SLUA453 for details. Thanks Ming
    on Nov 12, 2009

  • Forum Post: Re: Battery status using bq27500, OEM

    dMax
    Howdy! I'm sorry this post got overlooked, but I'll try to answer now. First topic: Is the bq27500 gauge the right one for your application? Probably, but I'll throw out another option that might work depending on your system and its requirements. Another good choice is the bq27210 which...
    on Nov 24, 2009

  • Forum Post: BQ27500

    Steven Carter
    I have a BQ27500-V130 Fuel Gauge in my design. The BATT-LOW signal is connected to a MSP430 (GPI). This signal does not toggle when the battery capacity goes below the set threshold. I have set SOC1 Set Threshold to 200mAh. My battery is fully charged and the SOC1 remians low - as seen in the...
    on Mar 12, 2010

  • Forum Post: Re: BQ27500 Golden data loading

    Ming Yu
    James, if /BAT_GD is set to active low, it should go high for 2 second and goes low. How the BAT_GD is pulled high externally? Thanks Ming
    on Apr 21, 2010

  • Forum Post: Battery status using bq27500, OEM

    FordFairlane
    Hello I'm developing a system similar to a security alarm. It will usually be AC powered, but sometimes it will be battery powered. I have selected bq27500 for battery fuel gauging, but I don't know wether this is the best one or not, is it OK? I thought using bq27500 would be very easy...
    on Aug 24, 2009

  • Forum Post: Golden Image Firmware (DFI) update on bq2750x

    Dani5201
    Hi all, Please, can you help us with an issue related to upgrading the golden image firmware (DFI) of bq250x? The status is the following: 1) We have made successful calibration of the homebox PCB with our LiION battery. For this: * We have used the "bq Evaluation Software " ver.0...
    on Nov 3, 2009

  • Forum Post: Re: BQ27500 Questions

    Jim S51845
    Charles, Thanks for the reply. Questions 1. I understand your reply to this question. Consider this question closed. 2. I understand your reply to this question. Consider this question closed. 3. I understand your reply to this question; however I have a follow-up question and additional...
    on Jun 16, 2010

  • Forum Post: Re: BQ27500 Questions

    Jim S51845
    Charles Your reply explains what I have observed. If it is possible to repair the data flash image, that would be great! Attached is the golden data flash image. Thanks for your help! Jim
    on Jun 18, 2010

  • Forum Post: BQ27510 Production Code

    Nick Moore
    I have written the firmware to program the BQ27510 from the three page flow chart from Going to Production with the bq2750x. However, every time I read register 0x66 to see if the data=0x00 I get the data to equal 0x37. Does anyone have any idea why this might be happening? I'm thinking maybe...
    on Jun 22, 2010

  • Forum Post: Re: bqEASY Logging Error

    Emil Piper
    HI I have similar problem with bq27500 v130 I am continuous getting an error every time I try to finish the chemistry cycling. “Error Logging Data: Overflow” I am using the automated version described in slua544 Can any one help me with this error? Best...
    on Aug 5, 2010

  • Forum Post: Re: bqEASY Logging Error

    Emil Piper
    attacment
    on Aug 5, 2010

  • Forum Post: Standby current measurement by bq27500 v130.

    Emil Piper
    Hi When the system is in standby it draws only 0.5mAh from the battery. This current is to small for the bq27500 v130 to measure so it has to be calculated by the fuel gauge. This is not the case, when I use a configured .DFI file. Dos it help to finish the cycling and the golden...
    on Aug 5, 2010

  • Forum Post: Re: BQ27500 QEN and VOK never getting set

    avc-marc
    Below is a screenshot of the DataRAM menu. I'm not sure what else to supply that might elicit a response and a solution to this problem. The screenshot is taken imediately after hitting the reset button on the bqEASY wizard in step 5, and before I discharge. Perhaps someone can tell me if this...
    on Nov 10, 2010

  • Forum Post: Re: BQ27500 QEN and VOK never getting set

    Ming Yu
    marc, sorry for the delay. You can leave TS floating. Ming
    on Nov 16, 2010

  • Forum Post: BQ27500 QEN and VOK never getting set

    avc-marc
    I have been trying for quite a while now to create a golden image. In each attempt, "Update Status" never gets updated, and the attempt fails. I have v1.20 chips but have reflashed the bq27500 to v1.30. I think the problem starts all the way at the beginning. From what I have read through...
    on Nov 5, 2010

  • Forum Post: BQ275xx and impedance

    Sebatien McKenzie-Faucher
    My design requires the battery to be located 6 inches away from the main board. The link between the battery and the main board, will be awg22 wires with 2 connectors. Therefore the impedance between the battery and the main board will probably vary depending on wires, contacts, etc. My questions...
    on Nov 5, 2010

  • Forum Post: Re: Chemistry Selection for an unknown Cell

    Kasthuri Rangan
    Thanks for ur valuable reply. I did as u said by having discharge current approximately C/10 (ie. 50 mA). But the above said Li-ion battery cuts off (RSOC becomes standstill) at 3V itself. So i cudnt do the relaxation of battery for 5 hours. Also in middle of the process how can i relax the battery...
    on Jan 11, 2011

  • Forum Post: Re: BQ27500 "chemistry select cycling"

    Simon Gustafsson
    Thanks Charles, I would be interrested in both the flashstream program, and the example code you mentioned for aardvark. My email adress is simon.gustafsson@tobii.com Now, I'm facing a new problem with BQeasy (BqEVSW revision 0.9.59): I'm about to generate the golden file for a bq27500...
    on Jan 13, 2011

  • Forum Post: bq27500, bqeasy maximum taper current of the charger?

    Simon Gustafsson
    Hi, Have a question about the dataflash values The constant Data Flash->Configuration->Charge Termination->Taper current seems to get the value from bqeasy in step 2B ("what is the maximum taper current of the charger possible considering charger tolerance?"). Reading slua432a...
    on Jan 20, 2011

  • Forum Post: Re: BQ27500-V130 is getting disabled

    Ignacio Michel
    Charles, Let me continue for Jay....... We program the BQ27500 device using the Evaluation Software, going into Data Flash, importing a .gg file, and then using Write_All / Preserve. We do not seal the chip. On the chips that do not work after programming, they read all batteries as being 100%...
    on May 5, 2011

  • Forum Post: Re: What are the differences between BQ27510-G2 and BQ27500-V130?

    Oscar Gomez Fuente
    This application note shows the differences slua461a.pdf (Please visit the site to view this file)
    on May 6, 2011

  • Forum Post: What are the differences between BQ27510-G2 and BQ27500-V130?

    Oscar Gomez Fuente
    I am reading the data sheets of BQ27510-G2 and BQ27500-V130 and the only two differences I can find are these: * The BQ27510-G2 has a LDO integrated, and BQ27500-V130 not. * The BQ27500-V130 has 96 Bytes of flash memory and BQ27510-G2 only 64 Bytes . Is that correct? Thank you very much.
    on May 6, 2011

  • Forum Post: Chemistry Selection for an unknown Cell

    Kasthuri Rangan
    Hi All, I am using bq27500/1 EVM (HPA291 REV B) and did Chemistry select cycling to find some suitable chemistry for Ultrafire 16340 880mAh 3.6V Li-ion battery. But i couldnt finish up the process since it stopped at RSOC=26%. Can anyone please help me to find the suitable chemistry of the battery...
    on Dec 31, 2010

  • Forum Post: Re: bq27541

    talent philippe
    HI, I need the tool to make the programmation file. I need to update a Bq27500 in a pocketPC runnning with WinCE. The host processor will program the gauge. Today, we are able to send a gg file to the gauge and we can manage to develop our own application to send a .bqfs file but I will wonder...
    on Jun 16, 2011

  • Forum Post: Questions regarding creating a "Golden File" for the BQ27500 fuel gauge:

    Ricky
    We have tried to create a golden file for the BQ27500 with the bqEASYtool, but we have encountered a problem:: Setting up the different parameters by the step-by-step method is easy, including changing the OP CONFIG from the default 817C to 817E. The Op CONFIG remains at 817E all through the learning...
    on Jun 7, 2011
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