The bq24314A device is a highly integrated circuit (IC) designed to provide protection to Li-ion batteries from failures of the charging circuit. The device continuously monitors the input voltage, the input current, and the battery voltage. In case of an input overvoltage condition, the device 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 device also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable.
The device can be controlled by a processor and also provides status information about fault conditions to the host.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | bq24314A Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC datasheet (Rev. A) | PDF | HTML | Jun 30, 2015 |
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The BQ24314A evaluation module is a complete charger module for evaluating a charger front-end protection and charger solution using the BQ24314A and BQ24080 devices. It is designed to deliver up to 700 mA of charge current to Li-ion or Li-polymer applications. The charger front-end protection (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WSON (DSG) | 8 | Ultra Librarian |
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