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STMicroelectronics EVL4983-350W Demonstration Board

STMicroelectronics EVL4983-350W Demonstration Board is based on the L4983 continuous conduction mode power factor controller, which implements a 350W wide-range input PFC pre-regulator. The STMicroelectronics EVL4983-350W is suitable for all switched-mode power supplies (SMPS) from 150W to several kilowatts and complies with the IEC61000-3-2 and JEITA-MITI standards. The patented control method enables a minimal component count, a simple design, and very low input current distortion (total harmonic distortion, THD) across all operating conditions.

Features

  • 90VAC to 264VAC universal input voltage range with 47Hz to 63Hz frequency
  • 400VDC regulated output voltage
  • 350W maximum output power
  • < 6% at full load and < 10% down to 15% load, Total Harmonic Distortion (THD)
  • 65kHz switching frequency
  • 97.4% peak efficiency
  • Mains harmonics meet EN61000-3-2 standard Class-D and JEITA-MITI Class D
  • EMI (according to EN55022 standard Class B)

Applications

  • PFC pre-regulators for
    • IEC61000-3-2 and JEIDA-MITI compliant SMPS exceeding 1kW
    • Desktop PC, server, web server, game console
    • High-power LED luminaries
    • Industrial and medical SMPS compliant with IEC 60601-1-2

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各种可直接替换器件，适用于通用模拟IC、分立元件和串行EEPROM。

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发布日期: 2026-06-02 | 更新日期: 2026-06-02