MM3220

MITSUMI 2 cells lithium-ion/lithium-polymer battery protection IC 2 cells lithium-ion/lithium-polymer battery protection IC MM3220 Series Outline MM3220 series are protection IC using high voltage CMOS process for overcharge, overdischarge and overcurrent protection of the rechargeable Lithium-ion or Lithium-polymer battery. The overcharge, overdischarge, discharging overcurrent, short, charging, and overcurrent(optional) of the rechargeable one-cell Lithium-ion or Lithium-polymer battery can be detected. Each of these IC composed of four voltage detectors, short detection circuit, reference voltage sources, oscillator, counter circuit and logical circuits. Features (Unless otherwise specified, Topr=+25°C) (1) Range and accuracy of detection / release voltage Overcharge detection voltage 4.0V to 4.5V, 5mV steps Overcharge release voltage Overdischarge detection voltage Overdischarge release voltage Discharging overcurrent detection voltage 1 Discharging overcurrent detection...