bq40z50-r1. Some IC work well, but some doesn't
Hello!We have 10 bq40z50-R1. 3 of them work well. But the others doesn't: bqStudio can't read any register (we look at oscilloscope, there are address, ack, command code and... nothing back from the...
View ArticleUnseal bq20z95
Can someone please email me the default Unseal and Full-Access codes for the bq20z95?I'm with Quartet Technology, Inc. My e-mail is dcallahan@qtiusa.com.
View ArticleCalibration for bq30z554-r1
I am working on writing a program to calibrate by bq30z554-r1 design. I have successfully calibrated my 3 cell voltages, PACK voltage, BAT voltage, and CC Offset. I am following the SLUUA79...
View Articlebq34z100-g1 grounding question
Hi,I'm a little confused. My battery is a two terminal lead acid. I don't have battery - and pack-. Do I have this right, my battery will connect to pack- and battery+. So the bq34z100-g1 operates the...
View ArticleGround of bq78z100
Hi I want to use bq78z100I will draw circuit using Orcad 16.5but i don't know how to artwork so i will ask artwork job of artwork company.in datasheetaccording to bq78z100evm datasheet,there are...
View Articlebq40z60 Over Charge (OC)
Periodically the bq40z60 sets the Safety Alert Over Current bit (OC) during a charge cycle. The gauge is in a learned status (Lstatus=E) and performs charging acceptably. According to the bq40z60 TRM...
View Articlebq27742-g1 Golden Image file from device doesn't match the one it was...
Greetings,I'm using Labview and an Aardvark I2C device to program the bq27742-g1 with a Golden Image file; and I've got just a couple questions. For reference I'm using docs: bq27742 Reference Manual,...
View ArticleBQ40Z50 Design Capacity cWh overflow
Hi,My DesignVoltage is 13200mV(3.3V*4S), and DesignCapacity (mAh) is 30Ah,so DesignCapacitycwh is 39600. But Design Capacity (cWh) has a max value-32767, so the value is overflow. I want to know...
View ArticleBQ34Z100-g1 with UltraLife URB1270 battery – chemistry ID and other questions
Hi There,I have been using and investingating the bq34z100-g1 for a little while now with a bench test setup (EVM + EV2400) with a SLA replacement LiFePO4 battery (UltraLife URB1270 -...
View ArticleD3 Blow up in BQ40Z60
what kind of problem can blow up the zener between REGN and BTST pins?
View ArticleNeed help getting an optimization cycle to run using PbA battery and BQ34Z100-G1
I've been trying to run an optimization cycle using the BQ34Z100-G1EVM and a Enersys Cyclon DT PbA 4500 mAh battery pack (3 cells in series) without success. I followed the Step-by Step Design...
View ArticleBQStudio version
Is there a version of bqStudiio that will fix the following:1. Cannot set Applied Pack Voltage. No matter what I enter, I get "Pack measured voltage in millivolts is out of range". This is a...
View Articleprogramming DFI file to bq27520G4 v3.29
Hi,I'm trying to program a DFI file using bqEasy to bq27520G4 v3.29 and I get a warning:"Communication with the target device cannot be established...."Note that choosing DataRAM and pressing refresh,...
View ArticleBQ76920
BQ76920+BQ78350, once Vsense=10mV then dsg Mosfet turn off,why?(all protection feature disabld)
View ArticleBQ40z50-R1 Cell Balancing & RSVD_ONE
My pack uses the internal cell balancing FETs but I'm a little unclear on what to do with Settings > Balancing Configuration > RSVD_ONE.The datasheet says:RSVD_ONE (Bit 1): Reserved and...
View ArticleLinux driver for BQ40Z60 Battery Fuel (Gas) Gauge
Is there a Linux driver for the BQ40Z60 Battery Fuel Gauge?Thanks.
View ArticleEV2400 Customer Kit VB example Code
Hi,could you provide example visual basic (VB) codes and supporting files so I write my own code to communicate with an EV2400 which then interface with a BQ34Z1100EVM ?I look forward to you...
View ArticleReprogramming bq20z75 V181......
Dear all,We have a situation where some BMS which is based on a bq20z75 V181 has been programmed with a wrong Chem file and .gg file by an accident. My questions are:If we reprogram the bq with the...
View ArticleBQ27530EVM problem
HelloI am trying to use the BQ27530EVM board but i have some problems. When i connect board with power supply, battery and Resistor box: Fuel Gauge is increasing to 3-4%, average current is decreasing...
View ArticleIs it okay to interconnect HDQ and I2C clock line on the BQ27541-G1 ?
We want to lay out our circuit board with this fuel gauge chip and an MSP430 so we could change from interfacing to it from HDQ initially to I2C later by changing the software in the MSP430. We would...
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