SSC1S312A Datasheet | Sanken

Quasi-Resonant Off-Line Switching Control ICs SSC1S310A Series Data Sheet Description SSC1S310A series is the controller ICs of a quasiresonant mode for a switching power supplies. The IC incorporates a startup circuit and a standby function to reduce a power consumption and standby power. In normal operation, the quasi-resonant mode operation achieves high efficiency and low noise. In addition, in medium to low load conditions, the operation mode is automatically changes the quasi-resonant mode to the bottom-skip mode to improve efficiency. The IC is provided in the SOIC8 package. The power supply that is a low ponent counts and a high performance-tocost can be achieved by the rich set of protection Features . Features - Multi-Mode Control (High efficiency operation in all range of loads) - Automatic Standby Function (Standby power is inproved by burst oscillation mode) - Input Power at No Load: <30m W at 100 VAC <50m W at 230 VAC - Bottom-Skip Function (Switching loss in medium to low loads is reduced) - Step-on Burst Oscillation Function (Transformer audible noises are reduced) - Bias Assist Function - Soft-Start Function - Adjustable Startup Voltage - Maximum On-time Limitation Function - VCC Operational Range Expanded - Leading Edge Blanking (LEB) Function (External Filter ponents are reduced) - Protection Functions Overcurrent Protection (OCP): Pulse-by-pulse Overvoltage Protection (OVP) Overload Protection (OLP) Thermal Shutdown (TSD) Typical Application D1 VAC C1 Q1 D3 R5 R4 R3 R12 C9 GND VCC OCP...