The HC3775B from HCW-HENGCHENGWEI is a high-performance AC-DC integrated circuit designed for efficient and reliable offline power conversion in compact electronic systems. Engineered with advanced high-voltage switching technology, this IC supports stable operation in demanding power environments while maintaining excellent efficiency and thermal control. Its optimized internal architecture enables fast switching performance, reducing overall switching losses and improving system energy efficiency.
Designed for high-voltage applications, the HC3775B offers strong operational stability and enhanced safety margins compared to lower voltage AC-DC solutions. This makes it highly suitable for universal AC input systems and devices exposed to voltage fluctuations or surge conditions. The integrated control structure reduces the need for external components, simplifying circuit design and improving overall system reliability.
Packaged in a compact SOP-7 form factor, the HC3775B provides excellent PCB layout flexibility and efficient heat dissipation, making it ideal for space-constrained designs. It is widely used in AC-DC adapters, LED drivers, smart home devices, industrial auxiliary power systems, and consumer electronics.
Combining high efficiency, compact integration, and robust high-voltage capability, the HC3775B is a dependable solution for modern power supply designs requiring performance, stability, and long-term reliability.
Key Features:
- High-voltage AC-DC integrated circuit
- Efficient 20W-class power conversion capability
- Fast switching technology for reduced losses
- Optimized internal control architecture
- Excellent thermal performance and reliability
- Reduced external component count
- High surge and voltage tolerance
- Compact SOP-7 package for flexible PCB design
Applications:
- AC-DC power adapters
- LED lighting drivers
- Smart home and IoT devices
- Industrial power supply modules
- Consumer electronics chargers
- Offline switching power supply systems
