SSC3S927

LLC Current-Resonant Off-Line Switching Controller SSC3S927 Data Sheet Description The SSC3S927 is a controller with SMZ* method for LLC current resonant switching power supplies, incorporating a floating drive circuit for a high-side power MOSFET. The IC includes useful functions such as Standby Function, Automatic Dead Time Adjustment, and Capacitive Mode Detection. The IC achieves high efficiency, low noise and high cost-effective power supply systems with few external components. *SMZ: Soft-switched Multi-resonant Zero Current switch, achieved soft switching operation during all switching periods. Features ● Standby Mode Change Function ▫ Output Power at Light Load: PO = 150 mW (PIN = 0.27 W) ▫ Burst operation in standby mode ▫ Soft-on/Soft-off function: reduces audible noise ● PFC IC ON/OFF Function: In standby operation, the IC turns off PFC IC. ● Soft-start Function ● Capacitive Mode Detection Function ● Reset Detection Function ● Automatic Dead Time Adjustment Function ● Built-in Startup Circuit ● X-capacitor Discharge Function ● Protections ▫ Input Voltage Detection Function Input Overvoltage Protection (HVP): Auto-restart Input Undervoltage Protection (UVP): Auto-restart ▫ High-side Driver UVLO: Auto-restart ▫ Overcurrent Protection (OCP): Auto-restart, peak drain current detection, 2-step detection ▫ Overload Protection (OLP): Auto-restart ▫ Overvoltage Protection (OVP): Auto-restart ▫ REG Overvoltage Protection (REG_OVP): Auto-restart ▫ Thermal Shutdown (TSD): ...