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BQ24315 pdf datasheet (过压和过流保护

消耗积分:0 | 格式:rar | 大小:666 | 2008-08-08

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The bq24315 is a highly integrated circuit designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The output of the bq24315 acts a linear regulator. The output is regulated to 5.5V for inputs between 5.5V and the overvoltage threshold. If an input overvoltage condition occurs, the IC immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable.
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