Gauge Development Kit discharge error
Hi all,To test usage of the bq27621, we bought the BQ27621EVM-G1 board and the BQ27GDK000EVM eval kit. I can open bqStudio and read the registers from the bq27621, but I am unable to discharge using...
View ArticleBQ33100 typical application
Hallo, I plan to use BQ33100 as power management IC. So is there any typical application of BQ33100? I'm designing some really tiny devices for industry automation, so the space and size matter a lot....
View ArticleBQ78350 never recovers from ASCD fault
Hi,A problem that was discovered about 4 months ago doesn't seem to have been resolved with the BQ78350 R1 firmware..The BQ76940 detects a short circuit which the BQ78350 reads through the I2C bus, but...
View ArticleBq34z110evm installation usb-i2c converter please be sure to use the ev2300?
Bq34z110evm installation usb-i2c converter please be sure to use the ev2300?But if you use a commercial product?Want to check before you buy.
View ArticleBQ27742-G1 being used with LI Ion Polymer battery please help.
Hi All,Hope somebody can help with this. We had a PCB developed that is using a BQ27742-G1 (partnered with BQ24170rgyt) and the battery is a 3.7V 5000mAh 105080. We are trying to initialise this for...
View ArticleIssues on updaing gauging parameter of bq2621
Hi~ this is Morgan Park from one of your Korea Disty.I got an issue on Updating the Gauge Configuration Parameters.One of our customer tried to change configuration but it's pending now.We found...
View ArticleIssue on updating gauging parameter w/ bq27621
Hi~ this is Morgan Park from one of your Korea Disty.I got an issue on Updating the Gauge Configuration Parameters.One of our customer tried to change configuration but it's pending now.We found...
View ArticleQuestion about gauging parameter updating of bq27621
Hi. This is Morgan Park from one of your Korea Disty.I got an issue on Updating the Gauge Configuration Parameters.One of our customer tried to change configuration but it's pending now.We found...
View Articlebq34z100evm Change chemistry + cells without ev2300 or bqstudio
Hello,i bought a "bq34z100EVM Wide Range Impedance Track Enabled Battery Fuel Gauge" without the ev2300 or ev2400i have a Tica C board (EK-TM4C1294XL) and want to read out the actual battery state...
View ArticleBQ40Z50 - Setting the Design Voltage and Design Capacity for LiPo battery
I am trying to configure a bq40z50 for first-time use and am slowly making my way through both the reference manual and application notes trying to slowly configure the chip correctly.I want to use the...
View ArticleBQ34Z100-G1: No I2C comms in bqStudio on new prototype
Hi, I have my first prototype of a product using the BQ34Z100-G1 and I am unable to get bqStudio to detect the device or manually send/receive commands from the device. The BQ does appear be operating...
View ArticleBQ78350 TCSETVCT
In the BMB BQ78350 I want the TCA flag (in BatteryStatus) to stop reacting to a valid charge termination, so that FC flag is the only one indication of a valid charge. In the register SOC Flag Config I...
View ArticleBQ27532: I2C communication problem with bq24250
Hi All,Urgent help need. Both lines (BSDA and BSCL) connecting to charger stuck low. Reading charger status always return ERROR.What should I do with BQ27532 to get access to bq24250 registers.Kind...
View Articlebq34z100-G1 PbA ChemID selection problem
Hi,I'm now trying for quite some time to prepare a golden image for that gauge but with no luck.We are using a Sonnenschein A512 3.5Ah PbA battery. When I started to use the gauge there was no...
View ArticleBQ78350+BQ76940+MCU programming
Hello everybody,I plan to design a pcb with BMS and some other functions. I want to combine the BQ78350, the BQ76940 and an MCU (Atmel ATmega with Two Wire Interface) on this board for that task. The...
View Articlebq40z50 - Battery Replacement
I have an experimental setup with which we are testing the bq40z50 for use in our product. Our system uses the PRES pin to wake the chip up and determine if a system is present, be that the charging...
View ArticleBQ78350+BQ76940+MCU programming
Hello everybody, I plan to design a pcb with BMS and some other functions. I want to combine the BQ78350, the BQ76940 and an MCU (Atmel ATmega with Two Wire Interface) on this board for that task. The...
View Articlebq27421 wrong state of charge value after hibernate
Hi,I am using the bq27421 on my custom board. It is connected to a 150 mA/H Lithium-ion battery. I only configure the bq27421 design capacity and termination voltage parameters. I am experiencing the...
View ArticleBQ78350+BQ76940+MCU programming
Hello everybody, I plan to design a pcb with BMS and some other functions. I want to combine the BQ78350, the BQ76940 and an MCU (Atmel ATmega with Two Wire Interface) on this board for that task. The...
View ArticleBQ40Z50 incorrect Cell Voltages
Hi,i am using the BQ40Z50 with BQStudio for a BMS. First i update Firmware on Bq40Z50-R1 and do voltage calibration.The Problem is that the gauge shows me different cell voltages than the...
View Article