1cell Li-ion/Li-polymer battery protection
MITSUMI
1cell Li-ion/Li-polymer battery protection IC MM3721 series
1cell Li-ion/Li-polymer battery protection IC
MM37...
Description
MITSUMI
1cell Li-ion/Li-polymer battery protection IC MM3721 series
1cell Li-ion/Li-polymer battery protection IC
MM3721 series
Outline
MM3721 series are Li-ion battery protection IC and detect charge current/discharge current with high precision by current sensing resistor (Rsns). MM3721 have two step discharge overcurrent detection. And system is protected appropriately in the next 2 state, Normal discharge mode and large current discharge mode.
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
Vdet1−0.2V to Vdet1, 5mV step
Overdischarge detection voltage
2.0V to 3.0V, 50mV step
Overdischarge release voltage
2.0V to 3.0V, 50mV step
Discharging overcurrent detection voltage 1 20mV to 150mV, 1mV step
Discharging overcurrent detection voltage 2 Vdet3-1+10mV to 200mV, 1mV step
Charging overcurrent detection voltage
−150mV to −20mV, 1mV step
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