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EVL4986-350W

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Low-THD 350W CCM-PFC pre-regulator based on L4986

Quantity $ per Unit Savings
1 - 500$207.520%
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$207.52
Parameter NameParameter Value
Target ApplicationAC-DC PSU for Server and Telecom
Core ProductL4986
Input Voltage Min Volt90.0
Input Voltage Max Volt265.0
ECCN USEAR99
ECCN EUNEC
Packing TypeNot Applicable
RoHs compliantNot compliant
GradeIndustrial
Package NameCARD

The EVL4986-350W evaluation board, based on the new L4986 continuous conduction mode power factor controller, implements a 350 W wide-range input PFC pre-regulator.


It is suitable for all SMPS from 150 W to several kW and is compliant with IEC61000-3-2 and JEITA-MITI standards.



Thanks to the embedded 800 V high voltage start-up circuitry (that includes also the X-capacitor discharger) and the new patented control method; the main features of this design are the minimal component counts, the simple and easy design and very low input current distortion (THD) in all operating conditions.



Power Good output signal PG_OUT with adjustable comparator input PG_IN for monitoring the PFC output voltage provides design flexibility.

Key features
  • Universal input voltage range: 90 to 265 Vac, 45 to 65 Hz
  • Regulated output voltage: 400 Vdc
  • Rated output power: 350 W
  • Total Harmonic Distortion (THD): <6% at full load and <10% down to 15% load
  • Power Good output/input signals
  • Switching frequency: 65 kHz
  • Efficiency peak: 97.8 %
  • Mains harmonics: meets EN61000-3-2 Class-D and JEITA-MITI Class-D
  • EMI: according to EN55022 Class-B