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Part Number: BQ77904
we are keen on seeking additional assistance to tailor the BQ77904 ICS to our specific application, particularly catering to the LiFePO4 chemistry. Could we kindly request your support in modifying the product to align with the aforementioned…
Part Number: BQ77904 Hi team,
Do we have any input bias current characterization for the CTRC/CTRD pins?
Or conversely any output leakage current from the CHGU/DSG pins?
Thanks,
Jacob
Part Number: BQ77904 Hi,
one of our customers has inquired about OCD2 threshold setting of BQ7790400. Can you advise, please?
It looks like this specification has been removed accidentally while reformatting the Device Comparison table in the latest datasheet…
Part Number: BQ77904 Other Parts Discussed in Thread: BQ77905 I have an application currently using the BQ77904 in a 4-Cell configuration with Samsung INR18650-35E batteries. The protection seems to work as intended during fast charging with all cells…
Part Number: BQ77904 Hi,
See the schematic below. Will this circuit protect the individual cells from reverse charge if one or more of the cells are inserted in wrong direction? Or do I need to add extra protection across each cell, e.g. diodes in parallel…
Part Number: BQ77904 Other Parts Discussed in Thread: BQ77915 , BQ76920 Hello,
I want to built a 4 series Li-Ion battery pack and I need a protection & balancing circuit at the same time.
The BQ77904 seems to be able do the protection, but are there…
Part Number: BQ76200 Other Parts Discussed in Thread: BQ77915 , BQ77904 , BQ77905 Can we use bq76200 with bq77904, bq77905 or bq77915?
Is it possible by connecting CHG and DSG of bq77xxx device to CHG_EN and DSG_EN of bq76200?
Best Regards, Kohei Sasak…
Part Number: BQ77904 Other Parts Discussed in Thread: BQ77905 Hey everyone,
I'm trying to implement the following battery protection device(bq77904).
I'll have four 18650's connected in series and it seems perfect for my application. Although from…
Part Number: BQ77904 Hi,
I am currrently working on a 6 series battery management system using 2 BQ77904 in series. Each device has 3 cells and LD pins are connected to the GND with 470k Ohm Resistor and Diode. When the battery has overcurrent fault,…
Part Number: BQ77904 Other Parts Discussed in Thread: BQ77905 , BQ77915 Hi Folks,
Our application has a non-removable 8S4P LiFePO4 battery pack and I'm in charge of designing the BMS for the system. The BQ77904 chip looks promising. I'd use two of…
