The HC5091B from HCW-HENGCHENGWEI is a high-efficiency 700V AC-DC integrated circuit designed for compact, reliable, and energy-efficient offline power conversion. Built with advanced high-voltage fast-switching technology, this IC operates at 105KHz, enabling reduced switching losses and improved overall conversion efficiency. Its optimized internal structure minimizes conduction losses, ensuring excellent thermal performance and stable long-term operation under continuous load conditions.
With a robust 700V voltage rating, the HC5091B provides superior reliability and enhanced safety margins compared to lower voltage AC-DC solutions. This makes it highly suitable for wide-range AC input applications and environments with voltage fluctuations or surge conditions. The integrated control and switching functions reduce external component count, simplifying circuit design and improving overall system reliability.
Encased in a compact SOP-8 package, the HC5091B offers flexible PCB layout options and efficient heat dissipation, making it well-suited 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 strong high-voltage capability, the HC5091B is a dependable solution for modern power supply applications requiring performance, stability, and durability.
Key Features:
- 700V high-voltage AC-DC integrated circuit
- 20W output power capability
- High-frequency operation at 105KHz
- Low switching and conduction losses for high efficiency
- Integrated power control reduces external components
- Excellent thermal performance and reliability
- High voltage tolerance for unstable AC environments
- SOP-8 package for compact and flexible designs
Applications:
- AC-DC adapters and battery chargers
- LED lighting drivers
- Smart home and IoT power systems
- Industrial auxiliary power supplies
- Consumer electronics power conversion
- Offline switching power supply designs
