Texas Instruments BQ24308 Overvoltage and Overcurrent Protection IC BQ24308DSGT

The BQ24308DSGT is an integrated circuit designed for overvoltage and overcurrent protection in lithium-ion battery applications. It provides protection against three key conditions: input overvoltage, input overcurrent with current limiting, and battery overvoltage. The device can handle a maximum input voltage of 30 V and supports input currents up to 1.5 A. It features a thermal shutdown mechanism to prevent overheating and can be configured to monitor battery voltage, turning off the internal switch if the voltage exceeds specified limits. The BQ24308DSGT is robust against false triggering due to current transients, incorporating a blanking duration before switching off in overcurrent situations. Additionally, it allows for the adjustment of the input overcurrent threshold using an external resistor. The device is packaged in a compact 2 mm x 2 mm WSON format, making it suitable for space-constrained applications such as mobile phones, PDAs, and other handheld devices.