SSC3S910
SSC3S910 is LLC Current-Resonant Off-Line Switching Controller manufactured by Sanken.
LLC Current-Resonant Off-Line Switching Controller
Data Sheet
Description
The SSC3S910 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 the Standby Function, the Overload Protection with input voltage pensation, the Automatic Dead Time Adjustment, and the Capacitive Mode Detection.
The IC achieves high efficiency, low noise and high cost-performance power supply systems with few external ponents.
- SMZ: Soft-switched Multi-resonant Zero Current switch, achieved soft switching operation during all switching periods.
Package
SOP18
Not to scale
Features
- Standby Mode Change Function ▫ Output Power at Light Load: PO = 125 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
- 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: Auto-restart ▫ High-side Driver UVLO: Auto-restart ▫ Overcurrent Protection (OCP): Auto-restart, peak drain current detection, 2-step detection ▫ Overload Protection (OLP) with Input Voltage pensation: Auto-restart ▫ Overvoltage Protection (OVP): Auto-restart ▫ Thermal Shutdown (TSD): Auto-restart
Applications
Switching power supplies for electronic devices such as:
- Digital appliances: LCD television and so forth
- Office automation (OA) equipment: server, multi- function printer, and so forth
- Industrial apparatus
- munication facilities
Typical Application
VSEN 1 VCC 2 FB 3 NF 4 CSS 5 CL 6 RC 7 PL 8 SB 9
U1 18 17 16 15 14 13 12 11 10
ST NC VGH VS VB NC REG VGL...
