Hi,
One possibility is that one of the VCx pins exceeded their differential abs max. This can occur from transients during the cell attachment process and is something we've seen happen several times. Our recommended solution for this is to place 8V Zener…
Part Number: BQ76940 Other Parts Discussed in Thread: TIDA-00255
Tool/software:
Hi there,
I'm designing a BMS using TI IC BQ76940 but I'm failing to understand how DSG and CHG pins works in that. I used reference deign given by TI and with this design…
Part Number: BQ76940 Tool/software: Hello,team: This is Stephen from Precor Incorporated, We are using your product Varicite VAR-SOM-MX6 Freescale i.MX6TM - based System-on-Module (SOM). We install it on our consoles. The problem now is that we need to…
Part Number: BQ34Z100-R2 Other Parts Discussed in Thread: BQ76952 , BQ76940 , Tool/software: Hello, I'm looking for development board which is built using BQ34Z100-R2 and BQ76940/BQ76952. Any suggestion or alternatives? Thank you!
Part Number: BQ76940 Other Parts Discussed in Thread: BQ76930 Tool/software: Dear Expert
It's like this, we have a BMS solution that uses BQ76930+BQ76940 cascaded for 24S. However, there have been high serial numbers of BQ76940 chips that have been damaged…
Part Number: BQ76940 Other Parts Discussed in Thread: BQ78350-R1A Tool/software: We are using bq76940+bq78350-R1A with 10 series lithium-ion batteries.
An issue occurred where the CHG-FET broken due to charging overcurrent protection.
The cause was that…
Hello Adarsh,
You could connect directly to the BQ76940 and use its own evaluation software (Found in the BQ76940 product page). This evaluation software should also be able to provide the raw ADC data. I would recommend to do that to get the raw data…
Part Number: BQ76940 HI,
1. During Cell Charging through BQ76940, how Charging Current will be controlled- EIther through Balanced Charger (CC) or 76940IC takes care of CC and then switch to CV mode?
2. in On of the reference design, there is mention…
Part Number: BQ76940 Hi..
BQ76940 AFE has Internal CC VREF for Current sense voltage reference but in the datasheet, not mentioned what is the actual CC VREF Value.
Part Number: BQ76940 Dear Expert,
My customer faced BQ76940 VC15 voltage drop about 12mV when connect with NTC via TS3. hey used 13 series battery. What the reason caused this phenomenon?
Could you pls look into the case?