XT1011AB is a dedicated chip for emergency detection and control. The chip uses patented high-voltage isolation and detection technology, without any external components to directly monitor the state of the AC input signal, and directly or indirectly drive the LED string. At the same time, it supports full voltage 85-265Vac input.XT1011AB integrates high-precision single-cell lithium battery management and MOSFET. It has the functions of overcharge protection, over discharge protection, overcurrent protection and short circuit protection. XT1011AB has a built-in battery reverse connection protection function. When the battery is reversely connected, it will automatically protect the battery and cut off the internal current path so that the battery will not be damaged by overcurrent.