ACTIVE
SSC3S902
Package：SOP18
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.
Features
-
・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)
Application
-
Switching power supplies for electronic devices such as:
・Digital appliances
・Office automation (OA) equipment
・Industrial apparatus
・Communication facilities
Specifications
| Control Method | Current Resonant |
|---|---|
| Type | Controller |
| Output Current | W |
| RDS(ON) (max.) | Ω |
| VDSS (min.) | V |
| VCC (max.) | 35 V |
| Oscillating Frequency(typ.) | 32 to 300 kHz |
| OCP | YES |
| OLP | Latch |
| OVP | Latch |
| Brown-in / out | YES |
| TSD | Latch |
| Power Consumption at No Load | |
| Package Weight (Typ.) | 0.27 g |
Typical Application
Block Diagram
Pin Configuration Definitions
Questions or Comments?
Please feel free to contact us if you cannot find the desired product from the lineup.