bq40z50 Unsealed to Full Access
Dear all,My bq40z50 EVM as received from TI has the Operation Status Reg A set to 0x6181 which is Unsealed mode. I want to change this to Full Access.I have tried to follow the TRM 10.5.3 page 66 and...
View ArticleBattery protection IC for 4-series application
Hi All,Now I'm looking for the battery protection IC for 4-series application which has following function.[Requirement]4-seriesOVP (Over Voltage Protection)UVP (Under Voltage Protection)OCP (Over...
View Articlebq34z100 and ev3200 communication error during battery charging
Hello,I am developing a 8 cell LiFePo4 battery pack using the bq34z100 evaluation module and are communicating with it over I2C using the EV2300 USB - I2C converter. The only modification I have made...
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BQ34Z100PW - SW1 and Rt1
From the example of 1-Cell Li-Ion, I am not sure about the function of RT1 and SW1. Can any one tell me if I remove this features, then what is the effect?I guess the SW1 is to turn off the LED display...
View ArticleMissing definition ReadSMBusByteArray and WriteSMBUsByteArray and...
Hello everyone,i would like to read and write data flash to make golden pack.i am using a raspberry pi to do that, i translate the VB code (slu379E) in C code but i have a probleme with 2 SMBus...
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Bad capacity prediction and rough temperature/current correction with bq34z100
Hello. I trying use bq34z100 with 4-parallel NCR18650 Panasonic (2900ma) battery set, but after testing got very bad results. Please check my records, maybe you can give me recommendation for improving...
View ArticleGNDSEL bit in OCR BQ27501
Where could I find more information about the use of the GNDSEL bit in the bq27501? In the specification SLUS879A - June 2009 I find I think some confusing information.In chapter 5.3.1 I can read :...
View ArticleLMD register in bq2013h
hello, everyonei am using bq2013h IC to gauge 2300 mAh Ni-Cd Battery. I encounter the following problem:in bq2013h, LMD register is 8bits. So this IC only can measure maximum of 256mAh. isn't it?Also...
View ArticleAbout BQ2013H initialization and NAC register
Hello, Mr. Recently, I also learn BQ2013H chip, experiencing some of the following questions, please give me your answer: 1 NAC register on the issue, I would like to read the NAC (available capacity...
View ArticleI2C/SMBus commands for bq40z50
Hi community,I wanted to know about how to fetch data from the bq40z50 with I2C commands.At first, most important for me is, which slave address the bq40z50 has, to be addressed by a microcontroller. I...
View Articleproblem with bq27530 on new layout
HIwe have manufactured a pcb with the bq27530 and bq24161 connected to it directly as in the evl.we are connecting to the bq27530 via ev2300 just like the evl. we have managed to upload the exported gg...
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bq34z100 difficulty in achieving a learning cycle
I am attempting to perform a learning cycle on a 1p8s 15Ah LiFePO4 pack of headway cells but am not able to get the FC bit to set and thus progress to 0x05 in the IT flags.Attached are screenshots of...
View ArticleBQ783xx
Hello,In the BQ76920 datasheet a Companion Controller IC BQ783xx is mentioned.I cannot find this product family (BQ783xx) in the catalogue.Please provide a link to the aforementioned device.Thanks!
View Articlehw version bq27530
Hiin our great effort to understand the problem with the bq27530 which doent write to the flash we found out that our hw version is A8 and in the evl it is A7. why are they not the same? what is the...
View ArticleBQ27421-G1 configuration Issue
Hello,I'm trying to change some parameters on the BQ-27421-G1A but I'm always have an error.I want to change Battery capacity, TCA parameters (clear set), FCC parameters, SOC1 parameters, SOCF...
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bq76PL536EVM-3 Packing List
Hello, I would like to know latest packing list of bq76PL536EVM-3.Below is the Packing list from SLUU437B.However, there is no CD-ROM in EVM.Could you please let me know the latest packing list ?...
View Articlebq2084-V143 ???
Hi,I use a bq2084-V143 with a bq29312a with 4 li ion cells...I don't have the evaluation board... I have my own PCB and I communicate with the bq2084 over SMBUS (I2C on an Atmel µC)I'm able to read the...
View Articlebq27500 Flash Parameters Conversion & Write
Hello,I have a few questions regarding the data flash parameter conversions in the bq27500. I have already run the bqEasy process and obtained the new, updated values from the entire process. Because...
View Articlebq27531 - Which Gauge Studio parameters change when you select a Chem ID?
Hello,I've loaded the 3102 Chem ID into the bq27531 via GaugeStudio, however I do not agree with some of the parameters in the Data Memory window. Most importantly, Charging Voltage (4.2V) and Design...
View Articlebq29209 cell balancer
I am having a problem understanding the cell balancing IC datasheet. specifically the Recommended Cell Balancing Configuration table listed on page 5 of the datasheet. It lists the ICB values with a...
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