MM3722

MITSUMI 1cell Li-ion/Li-polymer battery protection IC MM3722 Series 1cell Li-ion/Li-polymer battery protection IC MM3722 Series Outline MM3722 series are Li-ion battery protection IC and detect charge current / discharge current with high precision by current sensing resistor (Rsns). In the One-cell battery pack, on resistance of the FET SW has been used for over-current/short-current detection. MM3722 realize over-current/short-current protection with high accuracy and with no temperature dependence by using a chip resistor. Features (Unless otherwise specified, Topr=+25°C) (1) Range and accuracy of detection voltage Overcharge detection voltage 3.6V to 5.0V, 5mV step Overcharge release voltage Overdischarge detection voltage Overdischarge release voltage Vdet1−0.2V to Vdet1, 5mV step 2.0V to 3.0V, 50mV step 2.0V to 3.0V, 50mV step Discharging overcurrent detection voltage Charging overcurrent detection voltage Short detection voltage1 Short detection voltage2 0V batter...