Nexperia Introduces New AC/DC Flyback Controllers for GaN-Based Power Converters
Nexperia: The controllers use TSOT23-6 flip-chip packaging, which improves thermal management & minimizes the risk of accidental activation
Nexperia has launched a new series of AC/DC flyback controllers as part of its expanding power IC portfolio. The newly introduced models—NEX806xx/NEX808xx and NEX8180x—are designed to enhance the performance of GaN-based flyback converters used in applications such as power delivery (PD) chargers, adapters, wall and strip sockets, industrial power systems, and other AC/DC conversion solutions requiring high power density.
Controller Specifications and Capabilities
- NEX806xx/NEX808xx:
These are quasi-resonant/multi-mode flyback controllers with a wide VCC operating range from 10V to 83V.- Key Use: Optimizes current sensing and pulse frequency modulation (PFM) to achieve high efficiency across various load levels.
- Compatibility: These controllers can drive both silicon MOSFETs and GaN high-electron mobility transistors (HEMTs) directly, which improves power density.
- NEX81801/NEX81802:
These models serve as adaptive synchronous rectifier (SR) controllers.- Adaptive Control: The SR controllers feature a mis-conduction prevention mechanism, enhancing the reliability of the switching device and reducing operational risks.
- Use Case: These controllers are ideal for working with Nexperia’s NEX52xxx PD controllers and other discrete power components, offering an integrated, high-efficiency solution for flyback converters.
Thermal Performance and Protective Features
The new flyback controllers use TSOT23-6 flip-chip packaging, which improves thermal management and minimizes the risk of accidental activation of over-temperature protection (OTP). This design ensures better heat dissipation, making the controllers well-suited for high-power applications.
In addition, the integrated protection mechanisms safeguard devices from faults, making these controllers highly reliable for consumer electronics and industrial power supplies.
Key Benefits of Nexperia’s Flyback Controllers
- High Efficiency Across Loads: These controllers optimize power efficiency even during standby mode, ensuring reduced power loss.
- Seamless Integration: They work seamlessly with GaN or silicon-based transistors, enabling manufacturers to achieve greater power density.
- System Reliability: The adaptive control method in the SR controllers minimizes switching errors, improving reliability.
- Enhanced Thermal Management: The flip-chip design boosts thermal performance, extending the lifespan of the power system.
Explore More
For more details about Nexperia’s new AC/DC flyback controllers and their potential applications, visit www.nexperia.com/ac_dc_controller.