The A4030 from AiT Semiconductor is a Battery Management IC designed for single-cell Li-Ion and Li-Polymer battery packs. It requires an input voltage of up to 6 V. This IC incorporates a power MOSFET with low on-resistance, along with high-accuracy voltage detection and delay circuits to ensure safe and efficient battery operation. It provides comprehensive protection functions, including overcharging, over-discharging, overcurrent, and load short-circuit protection that safeguard batteries from potential damage. Additionally, it features charger reverse connection protection, battery cell reverse connection protection, and a charger detection function. This battery management IC offers a 0 V battery charging enable/disable function that enhances safety for deeply discharged batteries. It is available in a surface-mount package that measures 2.1 x 2.1 mm and is ideal for smartphones, tablets, and other portable electronic device applications.