RN-3S-8S-20A Li-ion Lithium Battery BMS Protection PCB Board

RN-3S-8S-20A Li-ion Lithium Battery BMS Protection PCB Board

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Project Symbol The detailed content LFP Standard NCM Standard
Overcharge protection VDET1 Single overcharge detection voltage 3.65V±0.025V 4.25V±0.03V
tVDET1 Overcharge detection delay time 1.5s(MAX) 1.5s(MAX)
VREL1 Single overcharge release voltage 3.45V±0.05V 4.15V±0.03V
Cell balance VBU Cell-balance detection voltage 3.60V±0.025V 3.6V±0.03V
VBL Cell-balance release voltage 3.60V±0.025V 3.59V±0.04V
IB Balance current 70mA±10mA 80mA±20mA
Over-discharge protection VDET2 Single over-discharge detection voltage 2.50V±0.10V 2.70V±0.1V
tVDET2 Overdischarge detection delay time 1.5s(MAX) 1.5s(MAX)
VREL2 Single overdischarge release voltage 3.00V±0.1V 3.0V±0.1V

Over current protection

IDP1 Level 1 overcurrent protection current 60A±10A 60A±10A
tVDET1 Detection delay time 1.0s(MAX) 1.0s(MAX)
IDP2 Level 2 overcurrent protection current / /
tVDET2 Detection delay time / /
Short circuit protection Exterior short circuit yes yes
TSHORT Detection delay time 1000us(MAX) 1500us(MAX)
Protection of release condition Disconnecting the load or charge Disconnecting the load
Resistance RDS Main loop resistance B-至P- RDS≤20mΩ B-至P- RDS≤20mΩ
Current consumption IDD Internal consumption during operation of the circuit ≤60μA ≤60μA
Charging maximum Voltage VDS Charging port connected to the charger maximum withstand voltage value DC60V DC60V
Chip maximum Voltage VDS Input voltage between each string battery node VDD-VSS DC5V DC5V
Continuous Discharge Current Sustainable discharge current 20A 20A
Continuous charge current Sustainable charging current 20A 20A
Rated current temperature Mosfet Rated current discharge MOSFET surface temperature <40° <40°
Temperature control switch Close the charging and discharging function at above rated temperature Charging 50℃ Discharging 75℃ Charging 50℃ Discharging 75℃
Charging reverse protection When charging, avoid the positive polarity and negative polarity reversal of charging NO/NO NO/NO
PCB Size PCB Length, Width, Thickness ≦75*42*7mm ≦75*42*7mm