SC89171 Datasheet | SOUTHCHIP

SOUTHCHIP SEMICONDUCTOR SC89171 DATASHEET DRAFT SOUTCHCHIP CONFIDENTIAL, SUBJECT TO CHANGE High Efficiency, Synchronous Buck Charger for 1-4 cell Li-ion Battery with Power Path management 1 DESCRIPTION 2 Features The SC89171 is a highly integrated switch-mode buck charger - for 1-4 cells Li-ion battery applications. It supports 4-24V input, - up to 5A charging current and provide battery charge management functions including trickle charge, constant current charge, constant voltage charge, charge termination, - auto recharge and charging status indication. SC89171 also integrates NMOS driver and PMOS driver for - Powerpath management, it is easy to support dynamic power management for charging and system power. - The SC89171 supports flexible charge current and input - current option, and the user can program the current freely through external resistor for different applications. - - The SC89171 supports input current limit, input over voltage and under voltage protections, internal cycle by cycle current - limit, battery short circuit protection, and battery over voltage protection. It also offers charging safety timer and battery - temperature protection to ensure safety under different - abnormal conditions. Besides, SC89171 keeps monitoring IC temperature and - automatically decreases charging current to ensure IC working - in normal temperature range. - The SC89171 is available in QFN-3.5- 5.5 package. - - Wide input voltage: 4V~24V, 30V sustainable Integrated low-Rdson synchronous buck charger, efficiency up to 97% Charging Management (Trickle Charge / Constant Current Charge / Constant Voltage Charge / Charge Termination/Auto-Recharge) Adjustable Input Current Limit and Charging Current Adjustable Constant Voltage by External Resistor setting - FB version: 2.1V for 1 to 4 cells battery Powerpath management for System Power Selector Battery Detection Adjustable Charge Safety Timer NTC supporting JEITA Standard for Battery temperature...