The HC7709B is a high-efficiency Gallium Nitride (GaN) AC-DC integrated circuit from HCW-HENGCHENGWEI, designed for compact, high-performance offline power conversion systems. Built using advanced GaN semiconductor technology, it delivers ultra-fast switching capability with significantly reduced switching and conduction losses compared to traditional silicon-based AC-DC solutions.
With a high voltage rating of 700V, the HC7709B is optimized for primary-side switching applications in modern low-power SMPS and adapter designs. Its low-loss architecture enhances overall system efficiency while minimizing heat generation, ensuring stable thermal performance and reliable long-term operation even under continuous load conditions.
The device supports high-frequency operation, enabling smaller transformer design, higher power density, and improved energy conversion efficiency. This makes it highly suitable for compact power supply solutions where space optimization, thermal management, and high efficiency are critical requirements.
Packaged in a standard SOP-8 form factor, the HC7709B provides easy PCB integration and cost-effective manufacturing. Its integrated design reduces external component count, simplifying circuit layout, lowering BOM cost, and improving overall system reliability.
The HC7709B is well-suited for next-generation offline power systems requiring high efficiency, compact size, and stable performance across a wide range of operating conditions.
Key Features:
- Advanced GaN-based AC-DC integrated circuit
- High voltage rating: 700V
- Ultra-fast switching performance
- Low switching and conduction losses
- Improved thermal efficiency and reliability
- Compact SOP-8 package design
- High-frequency operation support
- Reduced external component count
- High power density capability
Applications:
- Fast charging adapters
- USB and mobile chargers
- Smart power supplies
- LED driver systems
- Compact SMPS designs
- Consumer electronics power modules
- Low-power offline converters
- Energy-efficient AC-DC adapter solutions
