The INJOINIC IP5109 is a PMIC (power management and integrated circuit) designed for use in battery management applications. It is housed in a QFN-24_4x4x05P RoHS package, which is extremely small and provides high reliability. The IP5109 is an integrated circuit that can manage the charging and discharging of a single-cell Li-Ion/Li-Polymer battery. It includes several features designed to reduce risks of overcharging and over-discharging, and improve charging/discharging performance. The IP5109 provides a full range of battery protection and safety functions, including over-voltage protection, over-current protection, over-temperature protection, and short-circuit protection. It can also detect and identify the battery inserted, ensuring the proper charging parameters are set and maintained. Additionally, the IP5109 is capable of accurately monitoring the voltage and current of the battery, providing data for use in battery management systems.