SC8922 Datasheet | SOUTHCHIP

SOUTHCHIP SEMICONDUCTOR SC8922 PRELIMINARY DATASHEET INTERNAL USE CONFIDENTIAL, SUBJECT TO CHANGE High Efficiency, Synchronous Boost Charger for Two/Three-cell Li-ion Battery with Cell Balance and Power Path Management Function 1 DESCRIPTION 2 Features The SC8922 is a highly integrated switch-mode boost charger - and system power path management device for 2/3 cells Li- - Integrated Synchronous Boost Charger Integrated Power Path Management ion battery applications. It is able to step up 3.6V~5.5V input - voltage to up to 16V, and provide battery charge management - functions including trickle charge, constant current charge, constant voltage charge, charge termination and charging Cell Balance Function Charging Management (Trickle Charge / Constant Current Charge / Constant Voltage Charge / Charge status indication. Besides that, the IC can also provide cell Termination) balance function, so to reduce the cell voltage mismatch and - increase the battery life time. - The SC8922 supports up to 3A charge current, and the user - can program the current freely through external resistor for different applications. With the power path management - Programmable Constant Charge Current Programmable Constant Voltage Charge Status Indication Charge Safety Timer function and supplement mode, the IC can be used to charge - NTC for Battery Protection 2/3 cells Li-ion battery and meantime provide power for - system operation. - The SC8922 supports input current limit, input under voltage - and over voltage protections, internal cycle by cycle current limit, battery short circuit protection, and output over voltage - 2A / 3A Input Current Limit Option Adaptive Input Current Limit Input Under Voltage and Over Voltage Protection Battery Short Circuit Protection protection. It also offers charging safety timer, battery cell - Thermal Shutdown temperature monitor and over temperature protection to ensure safety under different abnormal conditions. The SC8922 is...