The HC3773B from HCW-HENGCHENGWEI is a high-performance AC-DC integrated circuit designed for efficient, stable, and compact offline power conversion. Built using advanced high-voltage fast-switching technology, this IC delivers improved energy efficiency by minimizing switching losses and optimizing overall power transfer. Its internal architecture is designed to reduce conduction losses while maintaining excellent thermal stability, ensuring reliable long-term operation in demanding applications.
With strong high-voltage capability, the HC3773B provides enhanced safety margins and stable performance compared to lower voltage AC-DC solutions. This makes it highly suitable for universal input voltage systems, especially in environments with fluctuations, spikes, or unstable grid conditions. The integrated power control system reduces the need for external components, simplifying circuit design and improving overall system reliability.
Housed in a compact SOP-7 package, the HC3773B offers excellent PCB layout flexibility and efficient heat dissipation, making it ideal for space-constrained and high-density electronic designs. It is widely used in AC-DC adapters, LED lighting drivers, smart home devices, industrial auxiliary power supplies, and consumer electronics.
Combining high efficiency, compact integration, and robust high-voltage operation, the HC3773B is a dependable solution for modern power supply applications requiring performance, durability, and energy efficiency.
Key Features:
- High-voltage AC-DC integrated power IC
- 20W-class efficient power conversion
- Fast switching technology for reduced energy loss
- Low conduction loss and high thermal stability
- Reduced external component count
- Strong surge and voltage tolerance
- Compact SOP-7 package for flexible PCB design
- Reliable long-term performance
Applications:
- AC-DC power adapters and chargers
- LED lighting power drivers
- Smart home and IoT devices
- Industrial auxiliary power systems
- Consumer electronics power supplies
- Offline switching power conversion systems
