ACTIVE
SSC1S312A
Package : SOIC8 (Pin 3 Removed)
RoHS : YES
SSC1S312A is the controll IC of a quasi-resonant mode for a switching power supplies. The IC incorporates a startup circuit and a standby function to reduce a power consumption and standby power. In normal operation, the quasi-resonant mode operation achieves high efficiency and low noise. In addition, in medium to low load conditions, the operation mode is automatically changes the quasi-resonant mode to the bottom-skip mode to improve efficiency. The IC is provided in the SOIC8 package. The power supply that is a low component counts and a high performance-to-cost can be achieved by the rich set of protection features.
Data Download
Design Support
- Technical Documents
Technical Documents
Features
-
・Multi-Mode Control
・Automatic Standby Function
・Input Power at No Load:
<30mW at 100VAC
<50mW at 230VAC
・Bottom-Skip Function
・Step-on Burst Oscillation Function
・Bias Assist Function
・Soft-Start Function
・Adjustable Startup Voltage
・Maximum On-time Limitation Function
・VCC Operational Range Expanded
・Leading Edge Blanking (LEB) Function
・Protection Functions
Overcurrent Protection (OCP): Pulse-by-pulse
Overvoltage Protection (OVP): Latched Shutdown
Overload Protection (OLP): Latched Shutdown
Thermal Shutdown (TSD): Latched Shutdown
Application
・Digital Appliance・Office Automation (OA) Equipment
・White Goods
・Industrial Apparatus
・Communication Facilities
Specifications
Control Method | Quasi-Resonant |
---|---|
Type | Controller |
Output Current | |
RDS(ON) (max.) | |
VDSS (min.) | |
VCC (max.) | 35 V |
Oscillating Frequency(typ.) | ― kHz |
OCP | YES |
OLP | Latch |
OVP | Latch |
Brown-in / out | NO |
TSD | Latch |
Power Consumption at No Load | |
Package Weight (Typ.) | 0.077 g |
Automotive Qualified | NO |
Typical Application
Block Diagram
Pin Configuration Definitions
Selection Guide
SSC1S310A SeriesPart Number | Protection Operation (OVP, OLP, TSD) |
---|---|
SSC1S311A | Auto-restart |
SSC1S312A | Latched Shutdown |
Questions or Comments?
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