The HC7708B is a high-performance Gallium Nitride (GaN) AC-DC integrated circuit from HCW-HENGCHENGWEI, engineered for compact, energy-efficient offline power conversion applications. Utilizing advanced GaN semiconductor technology, it delivers ultra-fast switching performance with significantly lower switching and conduction losses compared to conventional silicon-based power ICs.
With a high voltage rating of 700V, the HC7708B is optimized for primary-side switching in modern low-power SMPS and adapter designs. Its low-loss architecture improves overall conversion efficiency while reducing 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 system efficiency. This makes it highly suitable for compact power supply solutions where space-saving and thermal optimization are critical design requirements.
Packaged in a standard SOP-8 form factor, the HC7708B allows easy PCB integration and cost-effective manufacturing. Its integrated design reduces the need for external components, simplifying circuit layout, lowering BOM cost, and improving overall system reliability.
The HC7708B is ideal for next-generation offline power systems requiring high efficiency, compact size, and stable performance across a wide range of operating conditions.
Key Features:
- GaN-based high-efficiency 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
