上海钰泰 ETA3000D2I 电感式电池平衡器芯片

　　DESCRIPTION

　　ETA3000 is an inductive cell balancer based on ETA's patent pending proprietary technology. Unlike conventional passive balancing technique, ETA3000 utilizes a control scheme with an inductor to shuffle currents between two cells until the cells are balanced. Due to the switching nature, the heat and power dissipation generated in conventional linear balance technique are greatly reduced. The balance time is also significantly reduced due to higher balancing current not being limited by package thermal dissipation. ETA3000 consumes only 2μA ultra-low current from batteries in standby mode, extending the battery shelf time.The final balanced voltages ofboth cells are also highly accurate which enhances the performance and lifetime for the batteries connected in series. ETA3000 can also be used in multiple cells stacking with even number of cells. ETA3000 includes protection features similar to precondition in battery charging, that is when one cell's voltage is grossly lower than the other, the balancing current is reduced to a safe level until the lower voltage cell is charged up.