BQ27510-G3 : can't access to Final Voltage and Final Volt Time
Hi,I follow bq27520-G4 reference manual because i can't found any reference manual for BQ27510-G3.In the bq27520-G4 reference manual, there is 2 registers (Final Voltage & Final Volt Time) in...
View Articlebq27530 invalid return values from registry
Dear Sir, We selected bq27530 as fuel gauge and charger manager with bq24163 in our new product. Now we are testing prototype and we have problems with bq27530. Documentation itself is very poor for...
View ArticleCharacterize battery for BQ34z110 and LEOCH LP12-18
Hello,I would like to send in a LEOCH LP12-18 battery to be Characterize for a project we are working on with the BQ34z110.What information on the process can you provide?Also I have seen from an...
View ArticlebqWizzard logging issue
Hi there.I am trying to log a battery but I have some issues with the temperature and I am not sure why?!I am reading the temperature well but when I am trying to do a log.csv file with logging utility...
View ArticleBQ3060 communication wakeup issue when in sleep and under CUV state
Any reason why the SMbus communication is not available when the BQ3060 detects the CUV (DFET is OFF) state, and it goes into sleep state (since the sleep bit is ON) and cannot wake up via SMBus...
View ArticleBQ20z65-r1 : assert on alert pin
Hello, I'm interested in testing the ALERT pin in bq20z65-R1 chip. How do I make it enabled ? If I try to down Overcurrent discharge thresholds (subclass 1 registers) so as my current actually...
View ArticleIssue with bq20z95 remaining capacity
I am using bq20z95 in my design. Recently, I have noticed that the "remaining capacity" drops from 7% to 0%. What can cause sudden change in capacity value?Please see log file attached.Thanks,- Vaibhav
View ArticleBQ27425-G1 - PCB Routing Question
Is there any documentation outlining how to "fanout" the BQ27425-G1?Looking at the evaluation module documentation it looks like they put a via right in the pad itself.Can anyone confirm this or point...
View ArticleTesting bq20z65 R1
Hi,I'm developing a test bench for PCBs using bq20z65 and I apply a constant voltage and a separate current for simulating a battery. I have a test to simulate overvoltage and undervoltage : I apply a...
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BQ34Z950 / BQ20Z95EVM
Hi,I am trying to evaluate the BQ34Z950. Using the BQ20Z95 EVM I have made the following changes to the boardTo bench test, acquire a bq20z65 or bq20z95 EVM and make the following modification:1)...
View ArticleMisinterpretation of SMB Commands size using SMBus Protocol
Hi.I would like to make a comment about SBS Commands table that appears in different documents, such as SLUU264A.In fact, from that table (SBS Supported Commands Using SMBus Protocol) it appears that...
View ArticleGas Gauging vs Cell Balancing
In passive cell balancing (aka bleeding), some charging current is dissipated inside the battery pack.Thus, balancing decreases the real pack SoC.However, the gas gauge, from a coulomb standpoint, is...
View ArticleBQ27501 - Battery Temperature Reading
(Please visit the site to view this file)Dear Sirs, I am able to read almost all the data from Fuel gauge BQ27501 through I2C . But only the battery temperature reading is not correct while dc source...
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Unseal Bq20z95
Hello,I currently work with the softwares BqMtester and the circuit Bq20z95When calibrating the BqMtester has sealed the circuit.Now what is normal, I can not read data from flash memory: I would...
View Articlebq27541 I2C communication problem
We are designing a stand-alone device that our customers can use to track the health of their batteries. We are trying to interface with a battery that uses a bq27541 as its fuel gauge. We have had...
View ArticleBQ27510 Reset CycleCount
Hello all,we are using the BQ27510 to monitor the accumulator state of an handheld device.Everything works well, but if the customer or the service replaces the built in accumulator, we would like to...
View ArticleDevice availability
Hi,We are (were) just about to start a new product design with the BQ20z65-R1 as it was listed as a newer replacement for the BQ20z95. However, both these parts are now flagged as NRND.I see that the...
View ArticleEv 2300 software.
Hy!I just bought an EV2300. I want to use it to reset chips from laptop batterys. Now , i do not have any software for this. I want to reset for example M37512 from a toshiba battery. Can you help me...
View ArticleAllinOne: Fuel Gauge, Charging and Protection
I am a beginner in regarding to Battery Power Management and I am a bit confused. I hope you can help me.I am interested in to control a 4S LiFePo4 battery pack, i.e. to monitor and charge the cells...
View ArticleBQ27510: Reading Operation Configuration Register
For some reason I can't get following simple implementation to work. // read BQ27510 Operation Configuration Register for (i = 0; i < BQ2710_DFFS_BLOCK_SIZE; i++) data[i] = 0x00;...
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