IC manufacturers STMicroelectronics

IC manufacturers (96)

STMicroelectronics L4986A | Demoboard EVL4986A-1KWBL

Low THD-High Efficiency, 1KW Bridgeless CCM-PFC pre-regulator based on L4986A

Overview

TopologyPower Factor Correction
Input voltage90-265 V
Switching frequency65-130 kHz
Output 1400 V / 2.5 A
IC revision1

Description

The EVL4986A-1KWBL demonstration board is a bridgeless PFC pre-regulator, double boost topology, featuring 1 kW output power (400 Vdc) and wide input voltage range (90 Vac-265 Vac), based on the new L4986A peak current mode CCM power factor controller. It is intended as a front-end converter up to 1 kW, able to be compliant with IEC61000-3-2 and JEITA-MITI.The demo is designed on the double boost (Barbi) topology using two branches, each consisting of a boost stage, managing half mains cycle. Each section operates at almost fixed frequency (65 kHz).Thanks to the bridgeless approach and the L4986A control IC, the board offers high efficiency and low input current THD across the entire input voltage range. This is achieved using a low complexity schematic and fewer components compared to similar bridgeless solutions.

Features

  • Input mains range: 90 to 265 Vac - frequency 45 to 65 Hz
  • Output voltage / load: 400 V / 2.5 A
  • Efficiency:
  • above 98% at 230 Vac (full load)
  • above 95.5% at 115 Vac (full load)
  • above 94% between 10% and 100% of full load
  • No load mains consumption: below 250 mW at 230 Vac
  • Mains harmonics in compliance with EN61000-3-2 Class-A and JEITA-MITI, Class-A
  • EMI in accordance with EN55022 Class-B
  • Safety in accordance with EN62368
  • Dimensions 145 x 160 mm, height = 35 mm
  • PCB: double sided, 70 µm, FR-4, mixed PTH/SMT

Typical applications

  • IEC61000-3-2 and JEIDA-MITI compliant SMPS in excess of 1 kW, ndustrial and medical SMPS according to IEC 60601-1-2
  • Desktop PC, game console
  • High power LED luminaries

Products

Order Code Data­sheet Simu­lation Downloads Product seriesCVR 2
(V (DC))
Safety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingApplicationIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples
890303426008CSSPEC
8 files WCAP-FTBE Film Capacitors470 nF 20 13000 Ω*F -40 °C up to +85 °C 22.5 Carton 630 26 9 18
890324026034SPEC
8 files WCAP-FTX2 Film Capacitors2.2 µF 630 X2 170 0.14.55 GΩ -40 °C up to +105 °C 22.5 Bulk Across the mains 275 26 15 25 Boxed THT
7448041502SPEC
9 files WE-CMBNC Common Mode Power Line Choke Nanocrystalline 15 2 5 300 2100 Nanocrystalline 29 19 32 THT
750319521SPEC
PFC Inductor
Order Code Data­sheet Simu­lation
890303426008CSSPEC
890324026034SPEC
7448041502SPEC
750319521SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesCVR 2
(V (DC))
Safety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingApplicationIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples