The HC2705B from HCW-HENGCHENGWEI is a high-efficiency 700V AC-DC integrated circuit designed for reliable and compact power conversion in modern electronic systems. Featuring advanced high-voltage switching technology, this IC operates at 105KHz, enabling fast switching performance that minimizes switching losses and improves overall energy efficiency. Its optimized internal architecture reduces conduction losses, ensuring superior thermal performance and stable long-term operation.
With a robust 700V voltage rating, the HC2705B provides a significant advantage over lower voltage alternatives by offering enhanced safety margins and improved tolerance to input voltage fluctuations and surges. This makes it ideal for wide-range AC input applications and demanding power environments. The IC integrates essential control and switching functions, reducing external component count, simplifying circuit design, and enhancing overall system reliability.
Housed in a compact SOP-8 package, the HC2705B allows flexible PCB layout and efficient heat dissipation, making it well-suited for space-constrained and high-density 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 performance, the HC2705B 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 high efficiency
- High-frequency operation at 105KHz
- Integrated control reduces external component requirements
- Excellent thermal performance and reliability
- High voltage tolerance for unstable power conditions
- 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
