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STMicroelectronics VIPER26LD | Demoboard Steval-ISF003V1

Low standby losses power front-end with inrush current-limitation

Overview

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IC revision1

Description

Quick View Design Sample & Buy Quality & Reliability The STEVAL-ISF003V1 evaluation board allows limitation of the inrush current charging a DC bus capacitor, to comply with standard IEC 61000-3-3. This inrush current limitation is based on a soft-start procedure of the mixed bridge diodes and SCRs rectifier using progressive phase control at board start-up.This solution drastically reduces standby losses as the DC bus can be totally disconnected from the AC mains when it does not have to operate. DC bus deactivation is simply achieved by turning off SCRs, without requiring an additional relay to open the circuit in standby.The steady-state losses are also reduced, thanks to the removal of the NTC / PTC resistor traditionally used to limit the inrush current, which in turn removes the need for a relay to bypass it.

Features

◾Fully electronic solution without the need for an inrush current limiter resistor and its bulky bypass electromechanical relay◾DC bus disconnection at standby to reduce losses below 0.3 W◾Inrush current compliance with IEC61000-3-3◾Operation allowed with PFC (continuous or discontinuous)◾Compliant with EN 55015, IEC 61000-4-11◾Criteria A at 4 kV IEC 61000-4-5 and at 4 kV IEC 61000-4-4◾RoHS compliant

Products

Order Code Data­sheet Simu­lation Downloads Product seriesIR
(A)
ToTl
(mm)
PinsISAT
(A)
fres
(MHz)
VersionIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples
7461383SPEC
4 files WP-SHFU REDCUBE PRESS-FIT with external thread, full plain 180 M5 8 16 180 Brass 9 12.5 Press-Fit
7448053201SPEC
9 files WE-CMBNC Common Mode Power Line Choke Nanocrystalline 4 THT 32 0.9 1.1 300 2100 Nanocrystalline 37 23 34 THT
744741102SPEC
8 files WE-TI Radial Leaded Wire Wound Inductor 0.3 2.7 Heat Shrinking Tube 0.29 1 6000 8.5 8.5 5.5 THT
Order Code Data­sheet Simu­lation
7461383SPEC
7448053201SPEC
744741102SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesIR
(A)
ToTl
(mm)
PinsISAT
(A)
fres
(MHz)
VersionIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples