SC1815 is a synchronous buck-boost charger controller which can support reverse discharging operation. It can support up to 36V battery voltage, so can be used to effectively manage the charging for 1~6 cell Li-ion batteries no matter adapter voltage is higher, lower or equal to battery voltage. When a system needs to generate an output from the battery, SC1815 can also discharge the cells and delivers desired output up to 36V. Through its I2C interface, user can set the charging / discharging mode easily, and program the charging current, charging voltage, reserve output voltage, current limits, switching frequency and other parameters flexibly. Besides that, SC1815 integrates 10-bit ADC, so user can read the VBUS / VBAT voltage and current in real time, simplifying the system design. SC1815 supports internal current limit, over voltage protection, output short protection and over temperature protections to ensure safety under different abnormal conditions. The SC1815 is in a 32 pin 4x4 QFN package