bq34z100-G1 EVM Design file
Hi,We are evaluating bq34z100-G1 EVM. Could we get its original schematic/layout file in Orcad/PCAD/Altium format? Matt
View ArticleBQ40Z60 ACFET Toggling
I'm using the BQ40Z60EVM with a 4S pack. I changed the required settings for 4s operation, programmed the appropriate chemistry, and am now doing a manual learning cycle. With FETs under manual...
View ArticleBQ40Z60 ESD Ratings
Hallo,for series production we need to make our design ESD safe. Are the IO pins of the evaluation board schematics ESD safe or do we need to add extra parts to protect the BQ40Z60? We also have to...
View ArticleCommon Sense Resistor
We are using the BMS IC BQ79620 in conjunction with a microcontroller for CANbus communication. We would like to add Fuel Gauge capability, but don't need the additional features of the Companion IC,...
View Article100Hz Ripple
Our 48V battery pack is supplying a mains inverter. The pulsed nature of the current draw creates a 100Hz ripple on the DC output. We are using a BQ34Z100-G1 Gas Gauge to monitor SoC and Energy...
View Articlebq34z100 without bq77908
Hi,bq34z100 datasheet shows protection and balancing solution bq77908/ bq77910, however the bq34z100 EVM PWR111B doesn’t have any them.We would like to know if bq34z100 can work without bq77908/...
View ArticleBQ20Z45 FC flag not set when Relative State of Charge = 100%
Hi,I have a 4 cell pack design using the BQ20Z45. At the moment I am running tests using cells that have been stored for over 1 year and are no longer evenly matched in charge. Due to the cell...
View ArticleBQ34Z120
Hello,Apparently when using NiMH cells one should use the BQ34Z120 and not the BQ34Z100. How can this be, the datasheet for the BQ34Z100 specifically states that it does and I quote from the...
View ArticleUniversal Vehicle Battery Fuel Gauge
Hello, I'm searching for a solution to measure the remaining capacity for batteries is personal vehicles (12V) as well as in trucks (24V).Here, Texas Instruments provides a range of different Battery...
View ArticleSerial to USB converter with EV2400
Hello,Please bear with me as I am new to the forum and the hardware...I have a customer that is using a battery pack gas gauge made up of BQ30Z55-R1 devices. The customer has requested that we use an...
View ArticleEV2300 + HPA495 setup with BQ40Z50
Dear all,I'm implementing a EV2300 + HPA495 setup with BQ40Z50 board.I posted about this in the past and got no answers (https://e2e.ti.com/support/power_management/battery_management/f/180/t/426355I...
View ArticleDrivers on EV2300 aren't installed
I can't install drivers on EV2300. I used slec003.EV2300 is defined in the Device manager as by "USB Device".I tried on several computers.
View ArticleBQ34Z100 problems with I2C and VEN
Dear Sirs,I have a BQ34Z110EVM and I have been using to evaluate the IC. It is working fine with the EV2300.Since it is NRND, I bought some new BQ34Z100-G1 ICs to solder in my board. I designed it with...
View ArticleHow to control the discharge FET during charging state
Hi,I got a question with bq78350. Since I use the seperate path for charging and discharging, so I want to control them seperately. But as I found, the discharging FET is always turned on when the...
View ArticleBQ34Z100-G1 minimum shunt resistance
Hello everyone,I would like to ask how much could be the minimum BQ34Z100-G1 shunt resistance ?BQ34Z100-G1 datasheet says:8.3.5 Fuel Gauging....The bq34z100-G1 monitors charge and discharge activity...
View ArticleClik here to view.
Is it compulsory to remove gauge shunts in BQ76940 evaluation board with...
The datasheet of bq769x0 evm quick start guide SLUV925b clearly states that when connecting the EV2300 to evm afe (bq7694x0) we need to remove the gauge shunts i.e. SCL, SDA, REGOUT, ALERT. When...
View ArticleBQ34Z100 chemistry ID selection
Hi!I have successfully calibrated current and voltage on the BQ34Z100 by using the bqStudio.I guess the next step is to select the chemestry, right?Now, I'd like to know how to set the battery...
View ArticleClik here to view.
VARIATION IN VOLTAGE AND CURRENT AND BCAST NOT UPDATES SOMETIMES
I am using BQ40z50 fuel gauge with combination of charger BQ24735, Charging current and Charging Voltage is updating using BCAST bit. But BCAST bit is not working sometimes, It is not updating. I am...
View ArticleClik here to view.
Strange results on TimeToEmpty and StateOfCharge measurement
Hello everybody,I need your help on the following.Our application has not a stable load, we are driving a brushless motor for 1s and stop it for one more second, and do it again all the time. We made...
View ArticleBQ24193 with BQ27531
Can I use BQ24193 with BQ27531?I alos need a power good signal and was wondering how I could get this from this combination?Many thanks in advance.Joe
View Article