STEVAL-DPSTPFC1 STMicroelectronics

STEVAL-DPSTPFC1 Data brief 3.6 kW Totem Pole PFC with inrush current limiter reference design using TN3050H-12WY and SCTW35N65G2V Features Peak efficiency: 97.5 % with 3.7% THD Compact PFC converter Higher switching lifetime Compliant with EMI normative at 4 kV RoHS and WEEE compliant Applications EV/HEV on-board chargers Charging stations Motor drive, motion control Product summary UPS, industrial battery charger 3.6 kW power factor Server/Telecom SMPS corrector totem pole with inrush STEVAL- current limiter using DPSTPFC1 Description TN3050H-12WY and SCTW35N65G2V The STEVAL-DPSTPFC1 3.6 kW bridgeless totem pole boost circuit achieves a digital power factor correction (PFC) with inrush current limiter (ICL). It helps you to 30 A 1200 V automotive grade TN3050H-12WY design an innovative topology with the latest ST power kit devices: a silicon carbide SCR thyristor MOSFET (SCTW35N65G2V), a thyristor SCR (TN3050H-12WY), an isolated FET driver (STGAP2S) and a 32-bit MCU (STM32F334). galvanically isolated STGAP2S 4 A single gate driver This reference design also opens the path to a compact converter running at 72 kHz offering a high peak efficiency, low THD distortion (97.5 % with 3.7 % THD) and silicon carbide power SCTW35N65G2V reduced bill of materials. MOSFET It achieves a robust circuit that meets EMC standards up to 4 kV delivering high Energy saving switching lifetime with reduced EMI emissions. 12 W high voltage VIPER26LD converter with direct The thyristor SCR used as AC line polarity switcher allows achieving an active feedback current limitation at power up or line drop recovery: the PFC efficiency is optimal and no EMI bouncing effect occurs. Mixed-signal MCU with DSP and The reference design includes a power board with bridgeless totem pole boost (with FPU for digital STM32F334 an inrush limiter circuit, switch drivers and an auxiliary power supply), a control board power conversion with its MCU, a PFC/ICL control firmware and an adapter board for software debug. applications AC-DC Converters Industrial Power Supply Applications Server and Telecom Power DB3916 - Rev 2 - December 2020 www.st.com For further information contact your local STMicroelectronics sales office.STEVAL-DPSTPFC1 Electrical characteristics 1 Electrical characteristics Table 1. Electrical characteristics (Tj=25 C where not specified) Symbol Description Conditions Min. Typ. Max. Units AC line RMS V 85 264 V AC voltage AC line RMS I 16 A AC current V = 230 V AC 3.6 / 50 Hz RMS P Input power kW IN V = 110 V AC 1.6 / 60 Hz RMS Input AC f 45 65 Hz AC frequency Output DC V 400 450 V DC voltage V = 230 V AC 9 / 50 Hz RMS Output DC I A DC current V = 110 V AC 4 / 60 Hz RMS Switching f 72 kHz s frequency V = 230 V AC / 50 Hz RMS 97.5 Output power = 2 kW Peak PFC % efficiency V = 110 V AC / 60 Hz RMS 94.8 Output power = 1 kW Ambient T 0 45 C AMB temperature V = 230 V AC / 50 Hz RMS 3.3 Output power = Min Total 2.5 kW THD Harmonic % V = 110 V Distortion AC / 60 Hz RMS 3.5 Output power = 1.4 kW PF Power factor 0.99 - DB3916 - Rev 2 page 2/13