Battery Management

Browse by Tags

Battery Management

Welcome to the Battery Management Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "New Post".

Tags
You have subscribed to this tag. To view or manage your tag subscriptions, click here.   Close
You have unsubscribed from this tag. To view or manage your tag subscriptions, click here.   Close
You are currently viewing:
bq27500
Related Posts

  • 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: 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 connections with TPS65950 charger module

    Ming Yu
    Gandhar, 1. bq27500 is using the temperature for accurate gauging. If accuracy is not required then 10k resistor connect to TS is ok. 2. Normally we are not recommend to share the thermistor as it may need more components. Can second thermistor be used? You can contact me or David Maxwell...
    on Apr 21, 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: 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

  • Wiki Page: BQ27500 programming problems

    Michael Day
    Q: BQ27500 programming problems by 1438059 Hi, I have built a battery testing board based on the circuit on page 34 of BQ27500 data sheet. But I got the follow data: Input voltage: = [0.17,1.45,2.55,2.89,2.90,3.3,3.97,4.15,5.41] voltage; Data got by voltage() command: = [03 05;10 100;14 203;...
    on Jul 12, 2010

  • Wiki Page: BQ27500 max pack capacity

    Darwin Fernandez
    Q: BQ27500 max pack capacity by 313454 Hello, I'm using the BQ evaluation software to configure the BQ27500 system-side impedance track fuel gauge. In my application the capacity of the battery pack is 49000mAh (7 x 7000mAh packs in parallel) but when i put this value on the "design capacity"...
    on Jul 12, 2010

  • Wiki Page: BQ27500 Calibration without EVSW

    Darwin Fernandez
    Q: BQ27500 Calibration without EVSW by 1487378 Hi, I'm working on a product containing a BQ27500 battery monitor. In production I intend to update the firmware and download a DFI file. I've seen it recommended in SLUA449C to average calibration values over 20 or 30 boards and generate...
    on Jul 12, 2010

  • Wiki Page: BQ27500 : is this the right device for my system?

    Darwin Fernandez
    Q: BQ27500 : is this the right device for my system? by 1487378 Hi, I'd like some help to decide if the BQ27500 is the right fuel gauge for my system. Actually, I've already chosen it for some prototypes, so perhaps it's more a question of wether I can rely on the built in gauge algorithm...
    on Jul 12, 2010

  • Wiki Page: Sample C code available for single-cell fuel gauges and battery authentication ICs

    Antonio Fadhel
    Sample C code available for single-cell fuel gauges and battery authentication ICs by 317599 We have a new app note online (SLVA413) which has sample C code for the MSP430 platform that you can use to talk to many of our single-cell fuel gauges as well as our battery authentication ICs. It includes...
    on Jul 12, 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: 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: 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: 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: 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
12

All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms of Use of this site. TI, its suppliers and providers of content reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

TI Worldwide | Contact Us | my.TI Login | Site Map | Corporate Citizenship | mobile m.ti.com (Mobile Version)

TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs and
embedded processors, along with software, tools and the industry’s largest sales/support staff.

© Copyright 1995-2013 Texas Instruments Incorporated. All rights reserved.
Trademarks | Privacy Policy | Terms of Use