The HC2703B from HCW-HENGCHENGWEI is a high-efficiency 700V AC-DC integrated circuit designed for reliable and compact offline power conversion. Engineered with advanced high-voltage switching technology, this IC operates at 105KHz, enabling fast switching performance that significantly reduces switching losses and improves overall system efficiency. Its optimized internal architecture minimizes conduction losses, ensuring excellent thermal performance and stable long-term operation.
With a robust 700V voltage rating, the HC2703B delivers enhanced reliability and higher safety margins compared to lower voltage AC-DC solutions. This makes it ideal for wide-range AC input applications and environments with voltage fluctuations or surges. The IC integrates key power control and switching functions, reducing the need for external components, simplifying circuit design, and improving system reliability.
Housed in a compact SOP-8 package, the HC2703B offers flexible PCB layout and efficient heat dissipation, making it suitable for high-density and space-constrained designs. It is widely used in AC-DC adapters, LED drivers, smart home power supplies, industrial auxiliary systems, and consumer electronics.
Combining high efficiency, compact integration, and robust high-voltage capability, the HC2703B is an excellent solution for modern power supply designs.
Key Features:
- 700V high-voltage AC-DC integrated circuit
- 20W output power capability
- Low switching and conduction losses for improved efficiency
- High-frequency operation at 105KHz
- Integrated control reduces external components
- Excellent thermal performance and reliability
- High voltage tolerance for demanding environments
- SOP-8 package for compact and flexible designs
Applications:
- AC-DC adapters and battery chargers
- LED drivers and lighting systems
- Smart home and IoT power supplies
- Industrial auxiliary power units
- Consumer electronics power conversion
- Compact offline switching power supplies
