The HC77045C is a high-performance Gallium Nitride (GaN) AC-DC integrated circuit from HCW-HENGCHENGWEI, designed for compact, high-efficiency offline power conversion applications. Built on advanced GaN semiconductor technology, it delivers ultra-fast switching performance with significantly reduced switching and conduction losses compared to conventional silicon-based AC-DC solutions, enabling superior energy efficiency and lower thermal stress.
With a high voltage rating of 700V, the HC77045C is optimized for primary-side switching 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 under continuous load conditions.
The device supports high-frequency operation, allowing designers to achieve smaller transformer size, higher power density, and improved energy conversion efficiency. This makes it highly suitable for compact power supply systems where space optimization and thermal management are critical design factors.
Packaged in a standard SOP-8 form factor, the HC77045C 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 HC77045C 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
