Part Number:BQ40Z50-R1
Support Path: /Tools & software/Help find tools and software/Development tools/Other IDEs & Tool Chains/
Dear ladies and gentlemen,
could you please provide me a link to a download page for the latest SDK for the BQ40Z50-R1 Gas Gauge?
We need to create customized procution software using the SDK.
Thanks a lot in advance,
M.
Part Number:BQ40Z50-R1
Hi,
I'm using BQ40z50-R1 with EV2400.
The EVM is connected with Bqstudio when I pressed 'wake' bottom on the EVM.
bottom-left corner say 'no acknowledge form device', but still can read register.
Unconnected after few seconds ( approximately 5s) , unless press 'wake' bottom again.
Please anyone point me in the right direction. Thanks you .
Part Number:BQ28Z610
Hi Team,
I am Using Bq28z610 for single cell gauging, I configured the following setting
1) Selected proper Chem id.
2)Ensure DA configuration to 0x00
3)Fet options to 0x20
4) Updated design capacity and other parameters, even though gauge is always reporting 100% soc.
. As per my understanding, SOC should vary on charging and discharging but it always remains fixed on 100%.
Part Number:BQ28Z610
Hi,
I am using a multimeter to measure the current flowing through the load, but reading from Bq studio is not same as reading from the multimeter. Multimeter reading is 600 mAmp but Bq studio is reading 2 Amp. Is it possible? what could be the issue ?
Part Number:BQ78350-R1
Hi Team,
I have question about TI monitor and gauge for extand battery life cycle. (such normal 18650 cycle from 500 extand to 750 - 1000)
Do you have document can provide to me? as I know optimise DOD can improve battery life cycle, right?
Part Number:BQ2085-V1P3
To whom it may concern,
I received this error for two of my csv files...
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However, this error does not make any sense as my csv files have at least 350 individual discharge points. Can someone please provide the specific meaning of that error and how it can be corrected?
Sincerely,
Johnathan Celso
Applications Engineer
Ultralife Corporation
Part Number:BQ20Z80A-V110
Problem
The company I work for named Southwest Electronics in Houston, TX purchased an Aardvark I2C/SPI Host Adapter (PN TP240141). I have been tasked with interfacing between the Aardvark I2C adapter and the Texas Instruments BS-compliant gas gauge IC, bq20z80A-V110. Although I have been able to communicate with the chip with no problems up to this juncture, I have come up to a barrier in working with the Extended SBS Commands. I am using LabVIEW drivers from Total Phase and developing my own code based on those drivers. In the technical reference manual provided by TI for bq20z80A (Document no. SLUU288), I am utilizing the SBS Commands found in Appendices A through C in order to read and write to the IC. I began with the Manufacturer Access section in Appendix A and was able to read from those register addresses with not much difficulty.
However, as I am now into Appendix B, I am having difficulty with using the Extended SBS Commands.
Current Status
Here are screenshots with a general description of my code and what I have been able to accomplish so far in regards to establishing a handshake with the bq20z80A-V110.
To illustrate my current dilemma, the only commands I am not having an issue in using is the Extended SBS Commands that are available whether or not the chip is sealed and full access disabled. All I have to do is write to the Manufacturer Access, send the high byte and the low byte to the IC, then read from the Manufacturer Access register. The issue is that I can’t access any of the Extended SBS commands that aren’t available when the IC is sealed and full access is disabled, EVEN THOUGH I have unsealed the chip and enabled full access.
The following figure is the list of all the Extended SBS Commands that I have been able to use, which are available whether or not the IC is sealed or unsealed.
Figure 1 – Extended SBS Commands that I can use since they are available
I was able to use the TI software package, bq Gas Gauge Evaluation Software, to verify the status of the IC, see the following screenshot:
Figure 2 – Screenshot of SBS Status of bq20z80-V110
As visible in the preceding figure, the FAS and SS flags under the Operation Status are green signifying that the IC is unsealed and in full access mode.
In my LabVIEW code, I checked to see if I was getting comparable data by writing a VI where I wrote to the manufacturer access register. The three registers I wanted to check were the following, based off the information previously acquired from the TI software:
Operation Status – 8045 hex value
Charging Status – 0200 hex value
FET Control – 0006 hex value
First, here is my Labview code and data acquired from writing and reading from the bq20z80 chip. I wrote to the Manufacturer Access address with a subsequent high byte and low byte for Operation Status. As you can see, the return value in the LabVIEW program is the same as the one acquired through the TI evaluation software, see Figure 3.
Figure 3 – Operation Status Value derived through LabVIEW code
Second, I checked the Charging Status as another test case to verify that LabVIEW code was correct, see Figure 4.
Figure 4 – Charging Status value derived from LabVIEW Code
Once again, the value was the same as that which was acquired by the TI evaluation software.
Now, as the preceding two examples are available if the IC is sealed or unsealed, I decided to check an Extended SBS Command which isn’t available if the chip is sealed and has disabled the full access feature to see the result. Also, I used a command that has verifiable evidence through the TI evaluation software. The FET Control status word is 0006.
Figure 5 – FET Control Value through LabVIEW code
Hence, as you can see above, the FET Control register was not able to be read through my software. The software read from the same Manufacturer Address, but didn’t update the value with the FET Control status word. This is representative of the results of all the other Extended SBS Commands that were also checked through the above GUI which aren’t available when the chip is sealed with full access.
Conclusion
I would like to get some indication as to what write and read sequence I must utilize in order to use the following SBS commands in my LabVIEW software, :
AFEData (0x45)
FETControl(0x46)
StateOfHealth(0x4f)
UnSealKey(0x60)
FullAccessKey(0x61)
PFKey(0x62)
AuthenKey3(0x63)
AuthenKey2(0x64)
AuthenKey1(0x65)
AuthenKey0(0x66)
ManufacturerInfo(0x70)
SenseResistor(0x71)
Specifically, I want to be able to write the preceding commands in red and read the addresses since they are most important.
Part Number:BQ27510-G3
Assuming power is connected to the REGIN pin on BQ27510-G3, are there any cases where the internal +2.5V LDO turns off? Or does it always stay on? If possible, I would like to use this to power a small microcontroller that would handle I2C comms with the BQ27510-G3.
Regards,
Jason
Part Number:BQ40Z50-R1
I am using bq24650 charger along with bq40z50-R1 for charging and management of 3 series cell LiFePO4 pack. Towards the end of charging, one cell voltage shoots up due to imbalances in SOC and then triggers Cell Over voltage protection. All the balancing arrangements I have seen and tried, takes hours to balance the cells, whereas this overshoot happens in seconds or minutes. Is there any way to tackle this issue ?
Part Number:bq27421-G1
Hi Sir,
As the picture below, some errer happened while process cycle learning, could you please help on this? Thank you.
Part Number:BQ27GDK000EVM
Hi,
How to connect the EVM to the gauge via the ExtLoad+/Extload- GDK terminal?
I'd like to confirm that the connection should be made on the ExtLoad+/ExtLoad- terminal on the GDK and SYS/GND terminal on the EVM??? and NOT the Vbus/Gnd teerminal on the EVM?
Thanks
Part Number:BQ34110
Dear Sir,
We would like ti use BQ34110 for Battery Health Monitoring System project. we would like to measure individual lead acid battery voltage and temperature and battery bank current,voltage and temperature.
my query : can we able to measure individual battery temperature with only voltage input (without current ) or else we need to use external thermistor .
we have to use it for measuring battery temperature , then we cannot able to use thermistor AT103-2 . can we able to use RTD's , Thermocouples externally to measure individual battery temperature.
9
Secondly : the required currents to be measured are above 50 Amps upto 1200Amps . How to scale down the currents to be measured . because the limitation of bq34110 if upto 32A .it is mentioned in datasheet that beyond these range , we need to scale down.
kindly help us in this regards.
awaiting for your early and valuable response,
Regards,
vani.K,
Hyderabad,India
Part Number:BQ27441-G1
I am working on a battery-powered design using the MSP430FR5869 controller (FRAM is awesome!) along with the TPS65721 Battery Charger/Regulator. I would like to use the BQ27441-G1 as a fuel gauge, but am not sure if it will work with my battery.
I understand that there are two versions of the BQ27441-G1, for two common battery chemistries. The quick-start guide says, "The bq27441-G1A should be used if the cathode is a traditional LiCoO2 chemistry and/or the battery data sheet recommends a maximum charging voltage of 4.2 V. The bq27441- G1B should be selected if the cathode is a lithium-manganese type and/or the maximum recommended charging voltage is 4.3 V or 4.35 V. These two types of rechargeable lithium chemistries are the most popular in the industry and other types are not currently supported by the bq27441."
My battery's datasheet (attached) does not specify the chemistry, but lists the charge voltage as 4.2V. Does that mean its chemistry is compatible with the G1A?
Thank you,
Adam J.
(Please visit the site to view this file)
Part Number:BQ27520-G4
Hello,
I'm beginner for fuel guage, and willing to use TI's BQ27520-G4.
The issue is same as the title of this thread, and below is my questions.
(the abnormal data is read before apply TI battery parameter, and also same phenomenon after apply TI battery parameter.)
Q1. when I read Control() Subcommands, FW_VERSION value is different from the BQ27520-G4 datasheet.
Bq27520-G4 datasheet FW_VERSION = 0X0329
Defective chip FW_VERSION = 0x324
---------- Control( ) Subcommands Register dump ------------
[0x00] = 0x6285 ;SUBCMD_CONTROL_STATUS
[0x01] = 0x0520 ;SUBCMD_DEVICE_TYPE
[0x02] = 0x0324 ;SUBCMD_FW_VERSION
[0x07] = 0x0002 ;SUBCMD_PREV_MACWRITE
[0x08] = 0x0dd0 ;SUBCMD_CHEM_ID
[0x0c] = 0x0000 ;SUBCMD_OCV_CMD
[0x0d] = 0x0000 ;SUBCMD_BAT_INSERT
[0x0e] = 0x0000 ;SUBCMD_BAT_REMOVE
[0x11] = 0x0000 ;SUBCMD_SET_HIBERNATE
[0x12] = 0x0000 ;SUBCMD_CLEAR_HIBERNATE
[0x13] = 0x0000 ;SUBCMD_SET_SNOOZE
[0x14] = 0x0000 ;SUBCMD_CLEAR_SNOOZE
[0x1f] = 0x0000 ;SUBCMD_DF_VERSION
[0x20] = 0x0000 ;SUBCMD_SEALED
[0x21] = 0x0000 ;SUBCMD_IT_ENABLE
[0x41] = 0x0000 ;SUBCMD_RESET
Q2. Should I flash whole gg_out file?
At first, I do flash on only the parameters which specified at Datasheet - Table 4. Key Data Flash Parameters for Configuration.
If there's any other essential parameter at development state, please let me know.
thanks,
TS
Part Number:bq34110
Is there anywhere documents or reference designs for combinations of charger ICs with gauge ICs from TI? I haven't found yet. I'm looking for an optimum solution together with bq34110 gauge in a battery backup solution (UPS) with very rare discharge but defined and guaranteed amount of charge in case of a power fault.
The bq34110 does already contain all the controll algorithms for optimum charge controll and the application notes prefer an "intelligent charger" to be combined with it. What TI charger IC would be the best choice for a single cell and up to 24 V input system?
Part Number: BQ40Z50-R1
Hello everyone, I am concerned with determining the temperature coefficients for the temperature sensor of the settings (RT1).
I could get the basic calculator from bq40z50family but I do not see how to determine the coef for resistance rt1 I chose to take the resistance of your evaluation board CRCW120610K0JNEA
Best regards Anthony
Part Number:BQ34Z100-G1
I am looking to program parts using BQ studio. I need a board that has a socket to hot swap the parts out but I did not see any on the TI website. Is there any programming solution I can use ?
Part Number:BQ28Z610
Hi Team,
It is written in the datasheet "It determines battery state-of-charge by analyzing individual cell voltages when a time exceeding 10 minutes has passed since the last charge or discharge activity of the battery". What does it mean? I am confused from this statement.
Part Number:BQ20Z80A-V110
To whom it may concern-
I am trying to use bqStudio I2C Master Control Panel to read and write parameters from the bq20z80A-V110. Specifically, I am trying to access the DataFlash space portion of the IC with the TI software. My goal is to gain access through the I2C Master Control Panel and then integrate the call structure into a Labview program I am developing with the Total Phase Aardvark I2c/SPI dongle.
In that vein, I haven't been able to find any literature on how to use the bqStudoio I2C Master Control Panel software with the bq20z80A-V110. The only document I was able to find was slua790, which is entitled "Using I2C Communications with the bq34110, bq35100 and bq34z100-G1 Series of GAs Gauges". In this document there is a brief overview of the I2C commands and specific examples of how to use the I2C Master Control Panel software with these integrated circuits. There is a lot of good information in the document.
I wanted to know if there was a way of running one of the examples in this document by replacing the bq34xxx and bq35xxx integrated circuts with the bq20z80A-V110. I am attaching the following picture that is a screenshot of the Data Flash Access example found in the slua790 document:
Specific to my chip bq20z80A-V110, I want to read the COV Threshold which is Subclass 0 and Offset 0 in the Data Flash space. I was able to check the value through the bq gas gauge software and it should be 4350 mV. The document where this information can be found is sluu288, which is entitled "bq20z80A-V110 +bq29312A Chipset Technical Reference Manual". I am attaching a cutout from the document detailing the SBS commands for the DataFlashClass and the DataFlashSubclasses I will have to use in order to replicate the example above for this IC.
So, any help you can give me in regards to taking the example from the source document for the bq34xxx IC and replacing it with the bq20z80A-V110 and accessing the Data Flash space by way of the I2C Master Control panel would be greatly appreciated.
If there are any further inquiries, please don't hesitate to ask me.
Thanks in advance
Part Number:BQ78350-R1
I'm using bq78350 along with bq76930 for Battery Management and Gas Guaging. Is there a way where the SOC LEDs can always be ON on pressing the DISPLAY Button ?