INTEGRATED CIRCUIT DEVICE FOR MONITORING POWER SUPPLY

摘要

An integrated circuit device for monitoring power supply comprising a plurality of comparators for comparing a voltage obtained by dividing the voltage of each battery with a predetermined voltage so as to detect the voltage of each of a plurality of serially connected lithium ion batteries. The device has a terminal for inputting power from each battery to the input side of each comparator through a resistor, and a terminal for supplying power as reference voltage from each battery to each comparator. On the basis of the result of detection by each comparator, charging or discharging operation of the batteries is controlled.