BQ78350 Missing registers description
I can't find any reference to the usage of "FET Off Time" and "Delay" registers in "Ship" subclass although it looks related to the Shutdown Mode configuration (section 7.4)...Moreover, "Delay"...
View Articlebq769x0 Shutdown and Wake Up
Hello,What pins are active in the bq769x0 during shutdown? Are the CAPx pins low to their respective references? I assume REGOUT would be off.I'm going to use the bq76930, but I need a way to wake it...
View ArticleProgram DFI File into BQ27541 *not* using TI-Tools
Hello, I just want to write a small program to be used for production programming the golden DFI file, instead using TI- Tools for this Task because the Tools are useful for developers but probably not...
View ArticleGas Gauge solution for 10S5P battery pack
My question is about the solution to take in order to precisely track battery status of 10 Series and 5 Parallel battery pack.I am going to use the new TI solution BQ78350 + BQ76930 but my question is:...
View ArticleBQ78350 Calibration Issue
Hi Ti Forum,I am having an issue with calibration of bq78350 within bqstudio.I calibrated OK with simulated cell voltages with the resistor ladder. I have followed 6.4 of the Eval document and have now...
View Articlebq78350 - CEDV coefficients for room temp only
CEDV coefficients calculation needs data from discharge at low, room and high temperature.Our prototype is ready. We don't have access at a temperature chamber right now but still want to test the gas...
View Articlebq20Z65 cell UV shutdown
When our power switch is off (current essentially 0), when one of the cells drops below 3.5V for 10 seconds, the bq attempts to shutdown but immediately wakes again.We have a 20uF cap the output of the...
View ArticleBQ20Z45 CUV alarm not clearing
I have a 2-cell application. CUV Threshold is set for the default 2200mV. Cell 2 is at 3500mV. I reduce the voltage on cell 1 until it drops below 2200mV - CUV flag is set, TDA is set, discharge FET...
View Articlebq76pl536q1 reading error
i recently build a board w/ referencing to the EVM-3 schematic. basically let the Bq measures a series of 6 battery's voltage. however, the voltage reading from the Bq doesn't seems to match the...
View Articlebq27742-G1 - current sense filtering
Hello all,in the datasheet for the bq27742-G1, you are recommending a filtering network connecting to the current sense inputs for common mode rejection. However, for my current design, I can't allow...
View ArticleBQ27742 B.O.M New SMD Thermistor and Obsolete FET
While putting together B.O.M for single cell Lithium Ion battery pack I noticed one part from the BQ27742EVM B.O.M is being phased out. The UPA2375T1P-E1-A appears to have a LTS (Last Time Shipment)...
View Articlebq34z110 on lead acid 12V 40 ah what chemical ID
We are using the BQ34z110 on a lead acid 12V 40Ah battery (Shenzen Leoch Batteries LP12-40). Do you have a chemical ID available for this battery, or a simimlar battery ? (or are even lead acid...
View ArticleBQ34Z100 Chemical ID select
HelloPlease help me select chemical ID for bq34z100 for attached battery pack log (Li-Ion 4P). With best regardsViktor(Please visit the site to view this file)
View ArticleBQ30Z554 files
I am using the bq30z554-r1 gas guage. I was advised to reference the bq20z95 since the bq30 part does not have many documents or software on the product page. I installed the bqEasy software and can...
View ArticleBQ27421 hibernate problem
Hi,I am using BQ27421 to measure battery percentage (State of charge).When system goes to sleep mode , I am putting BQ27421 into hibernate mode, It's also going into hibernate mode.But When system...
View Articlebq76pl536
hi. i try to simulation a bms by tow bq76pl536 for monitor 12 cell in proteus. but, isnt any library and model for it. how i can simulate it
View Articlebq76PL536a Sleep mode exit
Having trouble with a string of bq76PL536a devices in which only the first device in the chain will exit sleep mode. Is there a trick to this? Are you allowed to use the Broadcast address to...
View Articlebq78350 Cell Balancing Test
I want to activate the balancing FETs using the ManufacturerAccess() Cell Balance Toggle command (0x1b) (bq78350 TRM Section 16.2.12).It requires ManufacturingStatus()[CBTEST] = 1.That bit can be read...
View ArticleBQ78350 and LCD control
Good Morning Ti Forum,Can you confirm that the blink and flash control for the LED display also works for LCD mode as well.I have successfully connected an LCD to the bq78350 and the bars increment and...
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[BQ34Z100] Heating problem
Part : BQ34Z100Schematic : Similar Figure 7 @ datasheetProblem : BQ34Z100 Self Heating & REG25(Regulator output) voltage = 3.3VItem Count : Total=16EA , Self Heating=6EA => 6/16=37%C1,...
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