A high density, high efficiency GaN-based 3kW LLC Resonant Converter to reduce design cycles, costs and time to market for data center, telecom, and industrial switching mode power supply (SMPS) applications. This full-bridge LLC resonant converter exceeds the 80+ Titanium standard for power supply units, achieving high power density (PFC+DC/DC) above 100W/inch3 and high efficiency of more than 96%.

Description and Specifications

• Input Voltage range: 380 Vdc~420 Vdc
• Output Voltage: 54 V
• Full Load Current: 55 A
• Topology: Full Bridge LLC Resonant Converter with Synchronize Rectification
• Target frequency: 250 KHz (resonant frequency)
• Max Frequency: 450 KHz
• PCBA board size: 80mm x 140mm x 30mm (including air-forced cooling)

Features and Benefits

• Digital based solution with soft switching LLC resonant converter
• Achieves 80+ Titanium with GaN Systems Bridgeless Totem-Pole PFC
• High power density up to 146W/inch3 (including air-forced cooling)
• High efficiency above 98%
• Meets low profile 1U datacenter form factor
• Over current, short circuit, and over voltage system protection

End Applications

• Datacenter/Server Power Converter
• Telecom SMPS
• Industrial SMPS