Solutions | EVAL 3K3W 3L BTP SiC PFC

Evaluation platform specifications and design resources

Description

This evaluation board showcases a comprehensive implementation of a three-level flying capacitor bridgeless totem-pole power factor corrector (3L-FC-BTP-PFC) operating in continuous conduction mode (CCM) featuring 4x 400 V IMT40R025M2H SiC MOSFETs in high-frequency switching leg. The design incorporates low conduction loss 600 V CoolMOS™ CM8 devices in the rectifier stage. The design incorporates low conduction loss 600 V CoolMOS™ CM8 devices in the rectifier stage, ICERGi’s proprietary isolated gate drivers IC70101, and a low-cost, energy-efficient Arm Cortex-M0+ microcontroller STM32G071KB from STMicroelectronics.

EVAL 3K3W 3L BTP SiC PFC evaluation board operates with a variable switching frequency (45.8 – 65.2 kHz) and supports dynamic output voltage control (355 – 430 V). This three-level flying capacitor bridgeless totem-pole PFC platform is intended for applications that require highest efficiency (ηpeak ≈ 99.3 %) and high-power density (120 W/in³) such as high-end AI servers and telecom.

Key Features

  • Industry leading efficiency (ηpeak = 99.3%)
  • Dynamic output voltage (355 – 415VDC)
  • Designed for EN55032 (Class B)
  • Fast surge protection (IEC 61000-4-4/5)
  • Low-cost digital control (Cortex-M0+ MCU)

Advantages

  • Powered by latest 400 V-rated SiC MOSFETs
  • Simplified drive and power circuitry 
  • Compact form factor (120 W/in³)
  • Low component count design
  • Natural convection cooling up to 50% load

Performance Data

Specifications

Parameter
Symbol
Value / Description

Design Name

EVAL_3K3W_3L_BTP_SiC_PFC

Topology

3-Level Flying Capacitor Bridgeless Totem-pole

Dimensions

160 mm x 65 mm x 40 mm

Peak Efficiency

ηpea

99.3% @ 230 VAC, 98.5% @ 115 VAC

Input Voltage

VIN

85 VAC – 265 VAC

Output Voltage

VOUT

355 V – 415 V

Output Current

IOUT

0 A – 8.5 A

Output Power

POUT_Max

3300 W (with derating)

Power Factor

PF

PF > 0.9 (15% – 100% load)

Switching Frequency

fSW

45.8 kHz – 65.2 kHz

Documentation

  • EVAL 3K3W 3L BTP SiC PFC Datasheet
  • EVAL 3K3W 3L BTP SiC PFC Manual

Conducted Emissions (EN55032)

  • EN55032 ClassB QP 225V 2600W L
  • EN55032 ClassB QP 225V 2600W N

Line Harmonics (IEC 61000-3-2)

  • IEC 61000-3-2 Report 115V 1650W
  • IEC 61000-3-2 Report 230V 3300W

Drawings

  • Fabrication and Assembly
  • Mechanical Report

Documentation

For datasheets, manuals or technical reports on this product please get in touch.