BQ27542 Flashing Golden Image, Capacity Misreporting
I generated a golden image a few weeks ago which we have been using for a few units. Lately we've been noticing misreporting of battery capacity. I did a little reading and my mistake may have been not...
View ArticleBQ28Z610 - Writing to Flash
Hi TI Community,I have BQ28Z610EVM eval board. I would like to change default parameters saved in flash memory. For example CellOverVolt_StdTemp (0x46BA) or DesignCapacity_mAh (0x462A). I'm using...
View ArticleBQ27621 / BQ27421 certified battery list
Hi, folksDo you have certifed battery list?We are seeking battery which is well available on market. And also 18650 type would be very welcome.
View ArticleBQ40Z60 - CHGC problem - measured current more than requested
Hello,I've made my own BQ40Z60 board, which is the same as BQ40Z60 excepted the following change :- traditional fuse (no external burning)- no 2nd degree protection (BQ294700)- I want to charge at 1A...
View Articlebq34z100-g1 SOC dropped from 85% to 0% during high discharge
I have a log file from a battery pack with currents drawn as high as 100 Amps. During these high discharges the pack voltage drops by 3 to 7 volts. The gauge seems to be able to keep up for some time...
View Articlebq34z100 without microcontroler: is it possible? What features will be...
Dear all,Since my last post has not been answered, I will try to create a new one with less information.I would like to know, because it is not very clear in the datasheet, if the bq34z100 can operate...
View ArticlePicking a fuel gauge adivce
Hello all,I am building my own set of bluetooth headphones, and I am a little overwhelmed on what fuel gauge would be best for my application. Could someone offer some advice on what could be my best...
View Articlebq34z100-g1 in prodution
We are trying to determine the configuration and calibration process for some new devices we are designing with the bq34z100-g1.We have already read the process to obtain the golden file. Now, we would...
View ArticleBQ27542G1 (Fuel Gauge) - Decoding Tite to Empty (TTE) data
I am using the BQ27542G1 gauging a battery. I’m interested in knowing Time To Empty(TTE) from the fuel gauge. Hence as per the BQ27542G1 fuel gauge data sheet, I sent a command 0x16 to the fuel gauge...
View Articlebq27520G4 EVM socket
Hi,Is there a bq27520G4 EVM become with a socket so I can replace the bq27520G4 easily when I developing the bq27520G4 programming?If no, can you produce me the part number of suggested socket for the...
View ArticleBQ40Z60 reverse polarity protection and AC input overvoltage protection
Hello all,I have a BQ40Z60 EVM and the schematic seems to have reverse polarity protection (implemented with Q4 and Q6) for the AC charger input voltage. I would like to add AC charger overvoltage...
View Articlecan we write golden pack .DFI into battery packs with bq20z65-r1 using bqEasy?
I'm turning around the tools and documents and I cannot find how to write the golden pack .DFI using bq20z65-r1.The bqTester is not compatible with this IC.Can I simply load the file using the data...
View ArticleHow to use EV2400 to help configure the BQ34z100?
We are using the TI BQ34Z100 fuel gauge for our Li-Ion battery and an early shipment of them came configured for the HDQ protocol. Unfortunately our device software is configured only for I2C so it was...
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bqStudio unseal cmd for bq78350
Hi Tom:I am using the bqStudio to test bq78350. I changed the security key in Advanced Comm SMB, as:Write Block 44. word 0* 35 00 23 01 67 45 FF FF FF FFI assumption is my unseal key should be...
View Articlebq34z110 equivalent replacement?
Hi Tom (Cosby),I just noticed today that the bq34z110 is not recommended for new designs. This is very unfortunate since this seems to be a somewhat unique device. I need a battery gas gauge that can...
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Reading from bq20z80 and writing to it
Hi,I'm a beginner to this chip or business and I need to read and write to some register to be specific. I like to see how I can toggle [NR] bit to 0 or 1?The subclass ID for this is 64, subclass name...
View ArticleBQ27500 Data Flash reading
Hi,We flashed dfi file to data flash of BQ27510-G3 chip.We need to read this dfi file from the data flash of BQ27510-G3 chip.Is this possible?From the some of the ti post,we understood that data flash...
View ArticleDFI file read
Hi,We need to add a logic to read dfi file from data flash of BQ2750-G3 chip.For this we need to put the chip ROM mode and exit from ROM mode.Is this make any problem for the chip or device especially...
View ArticleAbout bq40z60..
Dear Sir ,What is difference between learning cycle and optimization cycle in bq40z60??Regards,Sachin
View ArticleMaturity of BQ34z100-G1 product question.
I'm putting together some presentation material in support of using the BQ34Z100-G1 part.Can you tell me approximately when the product was introduced and/or when it became available for full...
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