REF_3K3W_HFHD_PSU 500 kHz high density 3 kW GaN rectifier for server and telecom applications

Overview

REF_3K3W_HFHD_PSU is a 3.3 kW high-frequency and high-density PSU for server and datacenter applications. The front-end AC-DC converter is a two-phase SiC interleaved bridgeless totem-pole stage for power factor correction, while the high-frequency (500 kHz) DC-DC converter to provide isolation and regulate output voltage is a GaN LLC half-bridge, with full-bridge rectification. The PSU includes a baby-boost stage to hold-up time requirements.

 

Summary of Features

  • 97.4% efficiency @98 W/in³
  • High frequency GaN LLC design (500 kHz)
  • Fully integrated transformer structure
  • 2-ph interleaved totem-pole SiC AC-DC 

Benefits

  • Infineon solution using GaN, SiC and Si 
  • Highest efficiency and power density
  • Digital control for both converters
  • Hold up time extension circuit

List of components

  • GaN HEMT Transistor (IGT60R042D2)
  • IPT60R016CM8 – 600 V CoolMOS™ 8 power transistor (IPT60R016CM8)
  • 600 V CoolMOS™ G7 SJ MOSFET (IPT60R080G7)
  • CoolSiC™ MOSFET 650 V (IMT65R057M1H)
  • CoolSiC™ Schottky diode G5 650 V (IDL10G65C5)
  • CoolGaN™ Transistor 650 V (IGT65R035D2)
  • OptiMOS™ 5 power MOSFET 80 V (IQE046N08LM5) 
  • EiceDRIVER™ 2EDB dual-channel isolated gate driver IC (2EDB7259K)
  • EiceDRIVER™ 1EDN single-channel gate driver IC (1EDN8511B)
  • EiceDRIVER™ 1EDB single-channel isolated gate driver IC (1EDB8275F)
  • EiceDRIVER™ 2EDB dual-channel isolated gate driver IC (2EDB9259Y)
  • EiceDRIVER™ 1EDN TDI single-channel non-isolated gate driver IC with truly differential inputs (1EDN8550B)
  • CoolSET™ flyback controller with integrated 800 V CoolMOS™ (ICE2QR2280G)
  • Small-signal N-channel MOSFET (BSS138N)
  • ISOFACE™ quad-channel digital isolator (4DIR1400H) 
  • OPTIREG™ Switcher (TLS4120D0EPV33)
  • Single Differential Comparator (TLV1391IDBVR) 
  • Integrated Circuit (TLV2376IDR) 
  • Low Dropout Linear Voltage Regulator (TLS820D0ELV33XUM)
  • 32-bit XMC4000 Industrial Microcontroller Arm® Cortex®-M4 (XMC4200-Q48K256)
  • Schottky diode (BAT46WJ)
  • Medium power AF Schottky diode (BAT165)

Support