| 摘要 |
There is provided a charge/discharge control circuit for preventing a charging current from flowing into a secondary battery through a parasitic diode and a resistor for allowing return from an overcurrent state although a switching circuit is turned off. The present invention employs a configuration in which a connection of a charger is detected and thus the resistor is disconnected from an overcurrent detecting terminal, whereby that a charging current is prevented from flowing through the parasitic diode even when the switching circuit is turned off and the charger is connected.
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