A 300 W Totem Pole PFC + HB LLC Reference Design: High Power Density, Compact and Low-profile Design

This 300 W CrCM totem pole PFC + HB LLC reference design uses our H2 Series 55 mΩ for PFC stage and H2 Series 130 mΩ ICeGaN® 650 V device as the LLC stage switching transistors.

This reference design demonstrates how ICeGaN® can improve efficiency, reduce no-load power consumption and lower thermal stress for offline converters opening the door to the next generation of high-power density, compact and low-profile designs.

Features:

• High power density: Open-frame power density of 20 W/in³ (300 W) and 23 W/in³ (350 W)
• Low No-load power consumption of only 150 mW due to the NL³ circuit of H2 series devices

Key specifications:

• Peak Efficiency > 95%, average > 93%
• Vin: 90-264 VAC
• Vout: 20 VDC
• Dimension: 153 mm (L) x 80 mm (W) x 20.4 mm (H)

Target applications:

• Gaming laptop
• TV