Description
The BM3451 is a professional protection IC for 3/4/5 cells rechargeable battery pack; it is highly integrated, and generally used in power tools, electric bicycles and UPS applications.
Features
- (1) High-accuracy voltage detection for each cell.
- overcharge threshold
3.6V~4.6V
accuracy: ±25 mV (+25℃)
accuracy: ±40 mV (-40℃ to +85℃).
- overcharge hysteresis
0.1V
accuracy: ±50 mV.
- over-discharge threshold
1.6V~3.0V
accuracy: ±80 mV.
- over-discharge hysteresis
0V / 0.2V / 0.4V accuracy: ±100 mV
(2) Three grades voltage detection of discharge overcurrent.
- discharge overcurrent 1
0.025 V ~ 0.30 V (50 mV step).
- discharge overcurrent 2
0.2 V / 0.3V / 0.4V.
BM3451 Datasheet
