A Li-ion Cell Charge Management IC Powered by Solar Cells

A chip with independent intellectual property rights was developed.It can be used for charging Li-ion cells with power supply from solar cells.The main function of this chip includes:charging the Li-ion cells by constant-current or constant-voltage mode with solar cells'supply;monitoring the real-time temperature of the Li-ion cells and the input/output voltages to guarantee charging the cells securely and efficiently;automatic control of the charging states;chip temperature control circuits;automatic adjusting of charging current according to solar cell's driving capability.This chip is a high density ASIC that only requires a small number of exernal components.