Range on the BQ76920
We are interested in designing with the BQ76920.Do you know what the range is of this front end? in-other-words if I’m using 12ea of a 26650 cell type and have them arranged in serial and parallel to...
View ArticleBQ27421 : Battery level changes improperly
Hi,I am using BQ 27421 for measuring the Battery level. I am reading battery level at every 1 second and send it over BLE. The battery fuelgauge returns correct value normally. But when I observed it...
View ArticleWhat does Max Error indicates in SBS window of bqEVSW for BQ34z950 ?
Hello Everyone,I am using BQ34Z950 with 4s3p battery pack.Single cell voltage 4.2v with capacity 2200mAh.I have observed a gas gauging problem, when battery discharged till 14.00v and continuously...
View ArticleBQ78PL116 current draw after charging done
Hi.I have this next issue with the circuit i have developed with gas gauge bq78pl116 and I need some help, as I am not sure what I am doing wrong.So this happens:1. I am doing a charging cycle.2.COV or...
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how can I read data from bq34z100 I2C_write,I2C_read ?
HiQuestion:Average currentvalue ofBQ34z100fromI2C - 1 bytedatareadsIteupnidaverywell.CURRENT: 0x0018 ->olryeogotoreadthe current valueReturns the instantaneous current measured by the...
View ArticleBattery Monitoring status
We need a Battery Fuel Gauge (battery status monitoring) IC for 3 cells and 4 cell lithium ion or lithium polymer battery pack which monitors the levels of battery pack for our portable device...
View Articleoffset location problem
Hi ,i am using bq27421-G1A battery fuel gauge and I2C communication with my controller.According to your example of bq27421-G1 Technical Reference on Page:15 for Data Memory Parameter Update Example...
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 ArticlebqTester.exe source code
Request copy of bqTester.exe source code. Please see attached excerpt from BQMTester User's Guide (SLUU238B).Thank you,Tim Denson
View ArticleRequest for fuel gauge part without software interface
Hi TI,We are in need of a battery fuel gauge part for one of our upcoming proto modules.Given below are the requirements:1. Should support Li-Ion Battery2. Should not require a host interface like I2C...
View Articlewrite the flash of BQ27510-G3 with I2C...
hello.I try to write G3 several parameter.(20 EA or more)firstI send unseal... //unsealed device temp_cmd = CNTL_ADDR; I2C_Data[0] = 0x14; I2C_Data[1] = 0x04; write_twi(BQ27510_ADDR, temp_cmd, 1,...
View ArticleCan I still use BQ77908A?
Hello, I want to use BQ77908A for battery protection. TI says the device is not recommended for new designs any longer. But BQ77908A would provide all features I'm looking for (protection FET's,...
View Articlebq27510 v1.11 not compatible with bqEVSW 00.09.59 bq27510v1.12
HelloI've just downloaded bqEV-EASY-HHSWSetup00.09.59, bq27510v1.12, bqEasy v1.36.00 (Rev. C) to calibrate a bq27510 (device:510, ver:1.11). When I start the bqEVSW, the only supported target is...
View Articlebq27510 Firmware version check and programming using dffs
Hi All,We are currently in production and the latter part of the production phase will have a mixture of bq27510-G2 and bq27510-G3 fuel gauges. We had generated golden file, bqfs and dffs for both the...
View Articlebq26231EVM / EV2200 PC Software Compatability
HiI'm having trouble getting the bq26231EVM evaluation software to run on a Windows 7 64 bit PC. When I run the setup.exe I get the message about compatability with this version of windows. I've tried...
View Articlebq27510-G2 compatible with bqEVSW version 0.9.92
Hi, I am using the bq27510-G2 and the bqEVSW version 0.9.92. Basically the problem is that when I start the bqEVSW a message box says "The detected device is not compatible with this application!...
View ArticleImpedance Track accuracy data
Hi Team,Do we have data on the accuracy for RSOC using impedance track over a wide cycle of temperatures, over a long time? I'd like to know how accurate the RSOC, DOD, and TTE will be if I am...
View ArticleFuel gauge selection for a 4S 380mAh, 15C battery
I am looking at different options for implementing a fuel gauge/protection circuitry for a 4 series cells, 380mAh pack. I am already familiar with the BQ20Z655 but it states a restriction on the...
View Articlebq34z100 Sleep Mode
Four questions about bq34z100 in Sleep (not Full Sleep) mode:1. How often is auto-calibration done, and does data flash get written on each auto-cal?2. Is it possible to increase the time betwee...
View Articlefor PP I2C program write..
would you tell me each delay time plz.1. Send BlockDataControl()2. Send DataFalshClass()3. send DataFalshBlock()4. send offset command(?) 0x40 +(offset % 32)/ get old data value.6 get old check sum...
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