onsemi

NCP1399AGDR2G

NCP1399AGDR2G Description

The NCP1399AGDR2G from onsemi is a high-performance offline half-bridge resonant controller IC designed for AC-DC power conversion applications. Packaged in a compact 16-SOIC surface-mount form factor, this active component is optimized for isolated power supplies, offering robust fault protection and precise frequency control. With a 9.5V–20V supply range and a 15.8V startup voltage, it ensures reliable operation in demanding environments. The device supports a 20kHz–750kHz switching frequency and a fixed 50% duty cycle, making it ideal for resonant topologies requiring high efficiency and low EMI emissions.

NCP1399AGDR2G Features

• Comprehensive Fault Protection: Integrates current limiting, open-loop detection, overload, over-temperature, over-voltage, and short-circuit protection for enhanced system reliability.
• Wide Frequency Range: Adjustable 20kHz–750kHz switching frequency enables optimization for efficiency and noise reduction.
• Low Standby Power: Features a 15.8V startup threshold, reducing power consumption in standby modes.
• RoHS3 & REACH Compliant: Meets stringent environmental and safety standards.
• Surface-Mount Design: 16-SOIC package ensures compatibility with automated assembly processes.
• Isolated Output: Supports isolated power supply designs, critical for safety in high-voltage applications.

NCP1399AGDR2G Applications

This IC is particularly suited for:

• High-efficiency SMPS (Switched-Mode Power Supplies) for industrial and consumer electronics.
• LED drivers requiring precise current control and fault resilience.
• Server/telecom power systems demanding robust protection and isolation.
• Adapter and charger designs where compact size and reliability are paramount.

Conclusion of NCP1399AGDR2G

The NCP1399AGDR2G stands out for its versatile protection features, wide frequency adjustability, and industry-compliant design, making it a top choice for engineers developing high-reliability offline power solutions. Its balance of performance and integration simplifies complex power supply designs while ensuring compliance with global standards. Ideal for applications ranging from industrial equipment to consumer power adapters, this IC delivers both efficiency and durability.