BM3451
Overview
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. The BM3451 works constantly to monitor each cell’s voltage, the current of charge or discharge, and the temperature of the environment to provide overcharge, over-discharge, discharge overcurrent, short circuit, charge overcurrent and over-temperature protections, etc.
- overcharge threshold
- 6V~4.6V accuracy: ±25 mV (+25℃) accuracy: ±40 mV (-40℃ to +85℃)
- overcharge hysteresis
- 1V accuracy: ±50 mV
- over-discharge threshold
- 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
- 025 V ~ 0.30 V (50 mV step)
- discharge overcurrent 2
Representative BM3451 image (package may vary by manufacturer)
