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BQ27530G1 Full Charge not set when charge terminated
Dear Sirs,I have BQ27530 configured and learning cycle is repeatedly succesfully achieved. But in normal user environment FC bit is not set properly. Charging is terminated according to configuration...
View Article78350-R1 Charge / Discharge problem with KEY_IN function (damaged DSG mosfets)
We are using the BQ78350 - BQ7694001 combination in our new BMS with a 10 cell application for our e-bikes. I have a problem during charge. The KEY-IN function is used to swich off / on our e-bike....
View ArticleProgramming in BQ Management Studio
Hello,I wanted to verify the programming steps using BQ Mgmt Studio. Is this correct...1. A FW engineer made a new GI from an old one because some of the gg registers needed updated from the original...
View ArticleUnable to communicate with BQ40Z60 using AlternateManufacturerAccess()
Hi,I 've designed a PCB which has a BQ40Z60 and I'm having problems trying to communicate with it from a MSP430G2553 using AlternateManufacturerAccess().When sending SBS Command 0x57,...
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Charger is disable during learning cycle [pq40z50r1]
Hi,I'm trying to implement a automatic system to perform a learning cycle in batteries with the bq40z50r1.A power supply and load simulator are connected to the battery packTwo additional mechanical...
View ArticleBattery Gauge bq27510-G3
Hi I want read External temperature from fual gauge ,i configured that WRTEMP Opconfig register also but i got negative temperature value like -35..my doubt on That Register config,please tell me...
View Articlebq25895 needs gas gauge to complete the design
Hello Forum, Please recommend a simple easy to use gauge that can work with your bq25895 in a power bank application.Is there any way to use some of the bq25895 register information to do a crude form...
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bq34z100-g1 full charge relax results in drop in SOC
Hi There,Getting some pretty good results with my system so far with the bq34z100-g1 and a 4S LiFePo4 pack - I have one last problem.After charging, when the pack goes into relax, when the bq34z100-g1...
View Articlebq34z100-g1 flash write/replaceable battery system/lead acid charger
Hi,We are conceptualising this new switchgear project and pretty much looking for a suitable full featured gas gauge for our 12Vcell lead acid battery.The architecture requires that we need to have a...
View ArticleEV2300 and BQ27210 problem
Hi all,we are having a very urgent issue.we have produced a few tenths thousands of PCBs with BQ27210.in the last week, the EV2300 doesn't communicate with the "bq27x10 evaluation software".the...
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bq34z100-g1 Cricuit verirfication
Hello, We are currently using bq34z100-g1 for making a very simple battery gauge indicator. Typically what we want to achieve is to have the possibility to verify battry capacity/charge based on a...
View ArticleDischarge rate is too high
1674,2016-06-13 17:00:06,6696.776,25.3,16068,-162,50,SUCCESS1675,2016-06-13 17:00:10,6700.777,25.3,16066,-162,49,SUCCESS[snip]22918,2016-06-14...
View ArticlePre-charge question
Hi,I must have done something wrong because the charge current was still quite high, while I thought I had everything correctly done for pre-charge..srec attached.Thanks!Regards,Ivo(Please visit the...
View ArticleTesting method for bq34z100-G1
Hi,We have completed our design using bq34z100-G1 ,now we are into its production.There are some doubts regarding testing of bq34z100.After programming golden file on the device parameters such as...
View ArticleDFI write
Hi,We are implementing DFI write algorithm based on SLUA449F( "Going to Production with the bq275xx") document for BQ27510-G3 chip.So we have following queries.1.Based on the Figure 8 Instruction...
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BQ34Z100 - Charted Average current not stable with pulsed load
BQ34Z100 - Charted Average current not stable with pulsed load.Hi,With a pulsed load of 500mA x 2s, 0mA x 2s, 1000mA x 2s, 0mA x 2s (Repeat) to TDA the charted log of Average current is as shown on the...
View ArticleMust the bq34z100-G1 be always connected to the battery
Hi,we have a discussion here whether the bq34z100-G1 (or i guess any gas gauge) should be always connected to the lead acid battery or if it could be disconnected when the device is switched off.I...
View ArticleUsing Primary Batteries (chemistry = LiSOCl2) with BQ27510-G3
I would like to use a battery fuel gauge (p/n:BQ27510-G3) to monitor the state of discharge of my battery pack, but I am using two primary batteries in parallel (TL-5930 from Tadiran, battery chemistry...
View ArticleMPPT based battery charging profile management using msp430g2553
Hi,I am in process of implementing MPPT based charge controller and thus have gone through the TI reference design PMP7605.Some part of the code used in reference design is NOT clear to me.I am using...
View ArticleBQ40Z50-R1 Overcharge Alert
Hi Sir/Madam,We are using BQ40Z50-R1 in battery pack design.We are getting an OC (overcharge alert) even though the criteria for OC was not met.Criteria: Remaining Capacity >= Full charge capacity...
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