深圳供应MM3856-美上美-原装芯片
1单元锂离子/锂聚合物电池保护IC
描述
MM3856系列是锂离子电池保护集成电路,通过电流传感电阻(Rsns)高精度检测充放电电流。MM3856有两步放电过流检测。并在正常放电模式和大电流放电模式下对系统进行适当保护。
Features
Detection voltage Range Accuracy
Overcharge detection voltage 4.1V to 5.0V, 5mV steps +/-20mV(Ta=-20 to +60 degC)
Overdischarge detection voltage 2.1V to 3.0V, 50mV steps +/-35mV
Discharging overcurrent detection voltage 1 15mV to +100mV, 1mV steps ※1
Discharging overcurrent detection voltage 2 30mV to +100mV, 1mV steps ※1
Charging overcurrent detection voltage -15mV to -100mV, 1mV steps ※1
Short detection voltage1 50mV to 200mV, 50mV steps ※2
0V battery charge inhibition battery voltage 1.3 to 1.8V, 0.1V steps +/-0.1V
0.9V fixed +/-0.3V
0V battery charge function Selectable "Permission" or "inhibition"
・Current consumption at Ta=25 degC (This doesn't include the bias current of NTC)
Normal mode 2.5uA typ. 4.0uA max.
Standby mode 0.1uA max. (Overdischarge latch function enable.)
0.6uA max. (Overdischarge latch function disable.)