- Block diagram
- Design considerations
- Design resources
- Product listing
- Support
Block diagram
AC/DC conversion (PFC)
Recommended products (4)
DC/DC conversion
Gate driver
Aux power supply driver
Signal processing
Communication Interface
Recommended products (2)
Power Distribution unit (PDU)
Related applications (1)
Select a component
To view more information about the Nexperia components used in this application, please select a component above or click on a component (highlighted in blue) in the block diagram.
Design considerations
- Transitioning to GaN FETs and SiC MOSFETs is critical for minimizing switching and conduction losses. Nexperia cascode GaN FETs are specifically suited for high-voltage 650 V applications like the PFC stage. Integrated damping of the series also helps with EMC performance.
- On the Synchronous Rectification secondary side, replacing traditional diodes with low RDS(on) MOSFETs, such as the NextPowerS3 series, significantly boosts total system efficiency
- Nexperia LFPAK (copper clip) technology is essential for reducing parasitic inductance and improving thermal resistance compared to standard wire-bonded packages.
- AI hardware is highly sensitive to power transients and noise. External ESD protection is necessary as silicon geometries shrink and become more vulnerable. Low-capacitance diodes are required for high-speed data interfaces within the PSU management system.
- Implementing eFuses, ideal diodes and load switches ensures resilience against short-circuits, inrush currents and reverse polarity, which is vital for maintaining "six nines" uptime in datacenters
Design resources
Evaluation boards
Reference designs