BMS IC with SOC & SOH Measurement for Li-Ion NMC cells

Premsagar S87

Other Parts Discussed in Thread: BQ76PL455A, BQ34110, BQ34Z100

i am are looking for an BMS IC which can support 16 Li-Ion NMC cell voltage measurement, in addition to cell voltage measurement IC should also be capable of supporting passive cell balancing with external FETs and SOC & SOH measurement of the cells. Following are the few details

Max each Cell Voltage 4.2V & 40Ah capacity
Temperature operation range - 10°C to 50°C
host system communication - Preferably I2C
5% accuracy on SOC measurement

over 8 years ago

0 Miguel Angel Rios over 8 years ago

TI__Expert 4640 points

Hi,

Please look into the bq76PL455A that can natively support 16S. It can also do passive cell balancing. There is no one chip solution that will also do the SOC and SOH, for that you will need to program an MCU to work with this device.

Thanks

Miguel

0 Miguel Angel Rios over 8 years ago in reply to Miguel Angel Rios

TI__Expert 4640 points

Hi,

It was brought to my attention, that you can pair the bq76PL455A with the bq34z100 or bq34110 to accomplish what you are trying to do, but you will still need an MCU to control the bq76PL455A.

Thanks,

Power management

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BMS IC with SOC & SOH Measurement for Li-Ion NMC cells