南芯产品规格书SC8906.pdf

SC8906 DATASHEET DRAFT SOUTHCHIP SEMICONDUCTOR SOUTHCHIP CONFIDENTIAL, SUBJECT TO CHANGE SC8906 High Efficiency, Synchronous, Buck-Boost Charger Converter with Four Integrated MOSFET 1 Descriptions 2 Features SC8906 is a synchronous buck-boost charger converter. • Buck-Boost Battery Charger for 2 to 4 Cell Batteries Four switches are integrated to simplify the system design. 4.2V/4.35V/4.4V for 2 and 3 cells, 4.2V/4.35V for 4 cells SC8906 employs current-mode control and can support very • Charging Management: Trickle Charging, CC Charging, wide input and output voltage range. It can support CV Charging, Charging Termination, Auto Recharge applications from 2.7V to 22V VBUS range. It is able to • Integrated Switches, 10 mΩ for Q1/4, 20 mΩ for Q2/3 effectively manage charging for 2~4 cell batteries no matter • Wide VBAT Range: 2.7 V to 22 V, 25V sustainable input/output voltage is higher, lower or equal to battery • Wide VBUS Range: 2.7 V to 22 V, 25V sustainable voltage. • DP / DM Handshaking for Fast Charging Mode SC8906 supports input current limit, DPM (dynamic power • Safety Timer management) function, and fast charging detecting. • Programmable Current Limit Charging voltage and current limit can be adjusted by • NTC Battery Temperature Protection external resistor. • Charging Status Indication • Current Monitor SC8906 supports