MM3638

MITSUMI One-cell li-ion/li-polymer battery protection IC One-cell li-ion/li-polymer battery protection IC MM3638 Series Outline MM3638 series are protection IC for lithium-ion and lithium-polymer battery. MM3638 protects the battery pack from overcharge, overdischarge, and overcurrent, etc. by controlling FET SW. In the One-cell battery pack, on resistance of the FET SW has been used for overcurrent detection. MM3638 realize overcurrent 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 / release voltage Overcharge detection voltage 3.6V to 5.0V, 5mV steps Overdischarge detection voltage Discharging overcurrent detection voltage Charging overcurrent detection voltage Short detection voltage 2.0V to 3.0V, 50mV steps 20mV to 65mV, 1mV steps 65mV to 300mV, 5mV steps −65mV to −20mV, 1mV steps −300mV to −65mV, 5mV steps 0.45V/0.6V 0.9V Accuracy±...