SSC3S937 - Sanken

SSC3S937 LLC Current-resonant Off-line Switching Controller

The SSC3S937 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.

Features

● Pb-free (RoHS Compliant)
● Standby Mode Change Function by External Signal ▫ 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
● Soft-start Function
● Capacitive Mode Detection Function
● Reset Detection Function
● Automatic Dead Time Adjustment Function
● Built-in Startup Circuit
● X-capacitor Discharge Function (AC Input Mode)
● Input Capacitor Discharge Function (DC Input Mode)
● Protections
  – Input Voltage Protection Input Overvoltage Protection (HVP): Auto-restart Input Undervoltage Protection (UVP.