Other Parts Discussed in Thread: BQ78350-R1A, TIDA-00792, BQ76200
Hi,
I am looking to use the IC bq76940 for the BMS that my company is developing, There are some clarifications required from our side. Could someone help me with these?
1) Can this part be used standalone or should always be used with a host controller (or a companion IC)?
2) We are looking to use the bq76940 IC up to 200A continuous discharge current and 60-80A charge current (48V battery system). Do the charge overcurrent and discharge overcurrent protection limits support this?
3) We will be requiring the balancing current to be around 200mA and will be sizing the balance MOSFETS and resistors accordingly but want to confirm that the Balance FET drivers will be able to handle the higher balance FET size and hence gate current.
4) We are looking to have a base 12V battery design and would like the BMS design to support multiple 12V batteries in series to make a complete 24/36/48 V system. Are there any inherent issues in doing this? Please note that the single 12V blocks will be independent battery+BMS blocks.
Thanks,
Darshil Dharod
email: darshildharod@gmail.com / Ph: +91 9005785447
