Texas Instruments BQ24381 Overvoltage/Overcurrent Protection IC and Li+ Charger Front End Protection IC with LDO Mode, 7.1 OVP BQ24381DSGRG4

The BQ24381 is an integrated circuit designed for overvoltage and overcurrent protection in lithium-ion battery charging applications. It features a maximum input voltage rating of 30 V and provides accurate battery overvoltage protection, ensuring the safety and reliability of the charging circuit. The device can support load currents up to 1.7 A and includes output short-circuit protection, thermal shutdown, and soft-start functionality to prevent inrush currents. The BQ24381 operates in LDO mode, maintaining a regulated output voltage of 5 V. It continuously monitors both input and battery voltages, disconnecting the charging circuit during overvoltage conditions. Additionally, it provides fault status indication and can be controlled via an active-low chip enable input. The device is housed in a compact 2 mm x 2 mm 8-pin WSON package, making it suitable for space-constrained applications such as smartphones, PDAs, and low-power handheld devices.