bq40z50 Enabled Protections C data FLASH
For the Enabled Protections C data FLASH, the bq40z50 data sheet shows bits 5 and 3 as RSVD, while the Battery Management Studio software shows them as CTOS and PTOS.Which is correct, and if they are...
View Articlebq34z110 optimization update status to 6
Hello Tom,I ran through the optimization to step 9. The OCVTAKEN is set and VOK is clear, but the update status is still 5. Would you please let me know if there is any possible reasons. Can I restart...
View ArticleBQ2013H
dears,a customer is willing to use BQ2013H but neigher in datasheet nor in EVM pdf is explained how to set RB1, RB2, RS values...many thanks in advanceV.
View ArticleUsing bq2013H
hello everyone,I am using bd2013H for measuring my acid-lead battery. But I don't know how to get Voltage and remaining Capacity.and I don't understand the following problems:Do Nominal Available...
View ArticleUsing BQ34Z100 with 12 NiMH cells
Is it possible (or appropriate) to use the BQ34Z100 for 12 NiMH series cells. I have seen some statements that this part can be used for NiMH, but there is no mention of this battery type in the...
View ArticlebqEVSW 0.9.88 has no bqEASY button
I want to try the bq27541 with the new G1 version (V2.22 chem file)At the bqEVSW version 0.9.88 there is no bqEASY button on the left side.Can you check it and tell me the result?
View Articlebq77908A: OCD/SCD fault recovery possible with partial load?
Can the bq77908A recover from a OCD/SCD fault if the load has not been disconnected entirely but just dropped significantly in value?We have an application where we'd like to shut off the discharge...
View ArticleFuel gauge - Production programer
Dear Texas fuel gauge team,we have many problems with our own Production Programer.The Gauge Studio is a very nice Proagram. It should be an little stepfor you to make an automatic sequence for...
View ArticleMaximum Battery Capacity Supported
Hi,I have noticed that on TI selection table that every fuel gauge is specified maximum battery capacity supported. Example: bq27200 up to 6000mAh, bq27541-v200 up to 8000mAh, bq27541-G1 up to...
View ArticleBQ20z95 measures no current if bus lines low
Hey,i have got problems with the BQ20Z95 on our 3s3p battery pack. If i hold the SMBus lines low for 'bus low time' (5 seconds) while charging or discharging (current = 2A) the BQ20Z95 reports current...
View ArticleBQ27421YZFT-G1A - learning cycle steps
Hi,I am using Lipo battery in my product. Right now working on learning cycle of BQ27421 using gage studio V1.3. I referred "SIua597.pdf" but not able to get exact steps for learning cycle specially...
View Articlebq76PL536A Evaluation Module schematic and modifications to change EVM to 3 x...
The data sheet mentions full-size reference design schematics are available on request. Where are these located for the bqPL536A Evaluation Module?Secondly, how can the EVM be modified to configure it...
View Articlebq34z100 calibration issues
I am using the bq34z100 with a 12s LiFePO4 A123 pack. I have developed a golden gg file, which I flash and then follow the calibration steps below that I found in these forums:Send an IT Enable (21)...
View ArticleBQ34Z100 Writing a Golden ROM File
Hi All, I am currently trying to write a standalone program to automatically write a golden ROM file that I have created to a BQ34Z100 chip via I2C communications. The BQ device is on a custom board,...
View Articlebq27421- conditions for Qmax update?
I am cycling a Li-Poly cell with a bq27421 -G1A EVM, and am yet to see QMAX_Up or RES_UP flags set after several charge/discharge and relax cycles.Looking through user guide, I see:"After the initial...
View ArticleBQ34Z100 IT Cfg configuration
Hi Tom,After trying with the setting as suggested, we do not see SOC jumping but there is another problem occurs where both full charge capacity and remaining capacity will drop from 39600mAh to...
View ArticlebqTester for bq34z110
I'm trying to read ROM file from bq34z110 as described in SLUA665 "Going to Production With the bq34z1xx".Unfortunately the "bqTester ROM Imager" from slvc109.zip (bqTester 1.02) doesn't recognize...
View Articlebq2084 more than 15Ah
The specification said maximum capacity for the bq2084 ist 15000mAh.What will happen if i use cells more than 15Ah?GreetingsNorbert
View ArticleBq34z100EVM communication problems with EV2400
Hello,I recently bought bq34z100evm and ev2400 to measure battery capacity. I connected to my PC and instal bq Gas Gauge Evaluation Software 0.9.90. When I tried to write data to data flash connection...
View ArticleHow do I use HDQ to access data flash (E.G. Manufacturer Info A) on a BQ27541
I need to communicate with a pack that is using the BQ27541 fuel gauge, but only has the HDQ pin accessible. Specifically, I need to be able to read back the Manufacturer Info blocks, read PCHG, enable...
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