GENERAL DESCRIPTION
Advanced bi-directional energy flow control with automatic input power source detection is adopted to achieve battery charging mode and battery power supply mode alternately. If the external power supply is present, SY6990 runs in battery charging mode with fully protection function. If the external power supply is absent, SY6990 runs in battery power supply mode with output current capability up to 3A. A half bridge with quasi-fixed 0.5MHz switching frequency is integrated to achieve power conversion for battery charging mode and battery power supply mode. All of them adopt N-channel MOSFETs with 16V rating and extremely low RDS(ON) to optimize operation efficiency and extend battery life-time. SY6990 is available in QFN4x4 package to minimize the PCB layout size for wide portable applications. Ordering Information SY6990 ( ) □ □□ □ Temperature Code Package Code Optional Spec Code Ordering Number Package type SY6990QCC QFN4x4-24 Note FEATURES
Integrated N-Channel M...
Silergy
