onsemi NCP1014ST100T3

NCP1014ST100T3 - High-Voltage Flyback Switching Controller

The NCP1014ST100T3 from onsemi is a high-performance offline switching controller designed for cost-effective, isolated AC/DC power conversion applications. This integrated controller features a 700V breakdown voltage rating and operates at 100kHz switching frequency, making it ideal for compact flyback power supply designs up to 19W.

Key Features

• 700V High-Voltage Capability: Robust breakdown voltage for universal AC input applications
• 100kHz Switching Frequency: Enables smaller transformer and filter components
• Integrated Protection: Built-in over-load, over-temperature, and over-voltage protection
• Flyback Topology: Proven architecture for isolated power conversion
• Wide Operating Range: -40°C to 150°C junction temperature for harsh environments
• Compact SOT-223 Package: Space-saving surface mount design

Applications

• AC/DC adapters and chargers
• Auxiliary power supplies for industrial equipment
• Telecom and networking infrastructure
• Consumer electronics power management
• Smart home and IoT devices

Technical Advantages

This controller integrates the high-voltage switching element, eliminating the need for external MOSFETs in low-power applications. The 67% maximum duty cycle and comprehensive fault protection ensure reliable operation across varying load conditions. With a supply voltage range of 8.5V to 10V, the NCP1014ST100T3 provides stable performance in cost-sensitive designs.

• NCP1014ST100T3.pdf