SSC3S902
SSC3S902 is LLC Current-Resonant Off-Line Switching Controller manufactured by Sanken.
- Part of the SSC3S901 comparator family.
- Part of the SSC3S901 comparator family.
LLC Current-Resonant Off-Line Switching Controller
SSC3S900 Series
Data Sheet
Description
The SSC3S900 series 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 mode change, Overload Protection with input voltage pensation, Automatic Dead Time Adjustment, and Capacitive Mode Detection. The IC realizes high performance-to-cost power supply system, downsized by high efficiency and low noise.
- 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 = 100 m W (PIN = 0.27 W, as a reference with discharge resistor of 1MΩ for across the line capacitor) ▫ Burst operation in standby mode ▫ Soft-on/Soft-off function: reduces audible noise
- Realizing power supply with universal mains input voltage
- Floating Drive Circuit: drives a high-side power MOSFET directly
- Soft-start Function
- Capacitive Mode Detection Function
- Reset Detection Function
- Automatic Dead Time Adjustment Function
- Built-in Startup Circuit
- Input Electrolytic Capacitor Discharge Function
- Protections
▫ Brown-In and Brown-Out Function ▫ High-side Driver UVLO ▫ Overcurrent Protection (OCP): Peak drain current detection, 2-step detection ▫ Overload Protection (OLP) with Input Voltage pensation ▫ Overvoltage Protection (OVP) ▫ Thermal Shutdown (TSD)
Package
SOP18
Not to scale
Selection Guide
Part Number
SSC3S901 SSC3S902
Protection Operation
UVLO / OCP OLP / OVP / TSD
Auto Restart
Auto Restart
Auto...
