| 摘要 |
A charging and discharging control circuit is provided in which a delay circuit is built in an over-discharge detector circuit, an over-charge detector circuit, or the like. A delay time of the detector circuit can be changed from an external without adding a control terminal, thereby reducing a test time of the detector circuit. A voltage detector circuit is disposed between a power supply terminal and a power supply voltage detection terminal of the charging and discharging control circuit, and the voltage detector circuit detects a specified voltage or higher, to thereby shorten the delay time of the internal control circuit.
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