Infineon Technologies EVAL_5K5W_3PH_LLC_SIC2 Interleaved LLC Converter
Infineon Technologies EVAL_5K5W_3PH_LLC_SIC2 Interleaved LLC Converter is a 5.5kW three-phase device that converts a 400VDC input voltage to a regulated 50V output. The Infineon EVAL_5K5W_3PH_LLC_SIC2 achieves a peak efficiency of almost 99% and a power density of 170W/in3, enabled by the superior characteristics of CoolSiC™ and a top-side cooled package solution.
Features
- 98.95% efficiency at 50% load
- 98.48% efficiency at 100% load
- 200kHz resonant frequency
- Three-phase interleaved LLC
- High-performance CoolSiC™ 650V in TOLT
- Top-side cooling
- Ultra-high efficiency and power density
- Digital control
Applications
- Power conversion
- Server power supply units (PSU)
Specifications
- 380VDC to 420VDC input voltage range for normal operation, with a minimum 360VDC for short-time operation to support hold-up time requirements
- 50VDC (nom.) output voltage
- 5500W output power
- 110A output current
- 200kHz resonant frequency
- 130kHz to 360kHz switching frequency range for close loop operation, 500kHz (max.) for startup
- <150mVp-p output voltage ripple
- Efficiency test
- 98.95% at Vin = 400V half load (without fan loss)
- 98.48% at Vin = 400V full load (without fan loss)
- 370VDC Vin turn-on threshold
- 350VDC input UVP
- 430VDC input OVP
- 47VDC output UVP
- 54VDC output OVP
- ~130A at nominal condition OCP
System Overview
Board Overview
Related Silicon Carbide MOSFETs
Infineon Technologies CoolSiC™ 650V G2 MOSFETs
Leverage silicon carbide's performance capabilities by enabling lower energy loss.
Published: 2025-10-31
| Updated: 2025-12-07