Part Number: BQ76940EVM Other Parts Discussed in Thread: BQ76920 , BQ76930 , BQ76940 , TIDA-00792 , TIDA-00255 , TIDA-00449 Dear All,
Maximum & minimum cell balancing current for 76940, 76930 & 76920 part , please share.
As per datasheet, it is showing…
Hi Furkan,
1. Yes, see the BQ76940EVM schematic or TIDA-00255
2. Yes, see TIDA-00449
3. Yes probably, you must design for the conditions. If needed, add drivers for the FETs
Part Number: BQ76930 Other Parts Discussed in Thread: TIDA-01093 , BQ76940 , , TIDA-00792 , TIDA-00255
Dear All,
Please suggest for reducing cell . This application is for 20cells. But i need 15 cells BMS. How to reduce cells refer some design.
I am using…
Hi Vaibh,
I don't know of a reference design for parallel modules, such implementations are unique to the system. In general ORing might be achieved with diodes or ORing controllers. You might look at products starting at http://www.ti.com/powers…
Thanks for responding! WM5295 said:
Yes, you can replace the bq78350-R1 gauge with a MCU in either the EVM design such as TIDA-00255 or the TIDA-00792 design.
Suppose I was to use the TIDA-00255 design as reference- does that mean I can scratch sheet 6, design…
Part Number: BQ76930EVM Other Parts Discussed in Thread: BQ76940EVM , TIDA-00255 , BQ76930 , TIDA-00449 Are there any schematic and PCB files provided for BQ76930EVM?
Thank you!
Hi Steven,
The CHG pin of the BQ76930 is not activated for a short circuit condition, only the DSG FET is turned off. Here are the links to 5 different reference designs using the BQ769x0 family:
http://www.ti.com/tool/TIDA-00449
http://www.ti.com/tool…
Hi Yoshwa,
The bq76920EVM board is not presently available for download. The board for bq76930EVM and specifically the bq76940EVM is available for download as TIDA-00255, this is often a useful starting point although it has more cells so more circuitry…
Hi Bill,
I think a diode / resistor pair is needed to protect the FET by reducing the power during a heavy load. Section 9 of this app note discusses this need in much more detail: http://www.ti.com/lit/pdf/slua749
You can also refer to this 15s reference…