The SSC3S900 series are SMZ-driven controller ICs designed for LLC current-resonant switching power supplies, incorporating a floating drive circuit that drives a high-side power MOSFET.And their functions include: Standby Mode Switching Function, Overload Protection with input voltage compensation, Automatic Dead Time Adjustment, and Capacitive Mode Detection.These functionally-rich products enable power supply systems to be high efficient and low noise with only a few external components, resulting in downsizing and high cost-effectiveness.
Feature
- Standby Mode Change function: changes to standby mode by external signal -Output Power at Light Load: 100 mW (Pin = 0.27 W) -Burst mode in standby operation -Reduces audible noise by Soft-On/Soft-Off function
- Supports universal AC input power supplies
- Floating Drive Circuit
- Soft-Start function
- Capacitive Mode Detection Function
- Reset Detection Function
- Automatic Dead Time Adjustment Function
- Brown-In and Brown-Out Function
- Built-in Startup Circuit
- Input Capacitor Discharge Function
- Protection Functions - High-side Driver UVLO - Overcurrent Protection (OCP): 2-step detection - Limited Output Power Protection (LPP) - Overload Protection (OLP) - Overvoltage Protection (OVP) - Thermal Shutdown (TSD)
Applications
- Switching power supplies for electronic devices such as:
- Digital appliances
- Office automation (OA) equipment
- Industrial apparatus
- Communication facilities
