onsemi

NCP1070STAT3G

NCP1070STAT3G Description

The NCP1070STAT3G from onsemi is a high-performance offline switching IC designed for flyback topology applications. This surface-mount device integrates a 700V breakdown voltage MOSFET, making it suitable for isolated power supply designs. With a 65kHz switching frequency and a 68% duty cycle, it delivers up to 14W of power, ideal for compact, energy-efficient systems. The IC operates within a 6.3V to 10V supply range and features a low 8.2V startup voltage, ensuring reliable operation under varying input conditions. Although marked as obsolete, its robust design and compliance with ROHS3 and REACH standards make it a viable choice for legacy or cost-sensitive projects.

NCP1070STAT3G Features

• Integrated 700V MOSFET: Reduces external component count and board space.
• Comprehensive Protection: Includes current limiting, overload, overtemperature, overvoltage, and short-circuit protection for enhanced reliability.
• Wide Supply Range (6.3V–10V): Supports flexible design configurations.
• Low Startup Voltage (8.2V): Ensures quick and stable power-up.
• 65kHz Switching Frequency: Balances efficiency and EMI performance.
• 14W Power Output: Suitable for low-to-medium power applications.
• SOT-223 Package: Compact and suitable for surface-mount designs.

NCP1070STAT3G Applications

This IC is optimized for isolated AC/DC converters in:

• Auxiliary Power Supplies: For industrial control systems and appliances.
• Consumer Electronics: Such as set-top boxes, routers, and LED drivers.
• IoT Devices: Where compact size and efficiency are critical.
• Legacy Systems: Cost-effective upgrades or repairs for existing designs.

Conclusion of NCP1070STAT3G

The NCP1070STAT3G offers a reliable, integrated solution for offline flyback converters, combining high voltage tolerance, robust protection features, and compact packaging. While obsolete, its performance and compliance with environmental standards make it a practical choice for specific applications. Designers seeking a proven, no-frills offline switcher for 14W or lower systems will find this IC a dependable option.