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STMicroelectronics VIPER26LD | Demoboard Steval-ISF003V1
Low standby losses power front-end with inrush current-limitation
Overview
| Topology | Other Topology |
| IC revision | 1 |
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
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | To | Tl(mm) | PCB Thickness min.(mm) | PCB Thickness max.(mm) | Surface | Packaging | ISAT,10%(A) | fres(MHz) | Version | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WP-SHFU REDCUBE PRESS-FIT with external thread, full plain, M5, 8 mm | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Outer ThreadM5 | Thread Length8 mm | PCB Thickness min.1.6 mm | PCB Thickness max.3.2 mm | SurfaceTin | PackagingTray | – | – | – | Rated Current180 A | – | – | – | – | MaterialBrass | – | Width9 mm | Height12.5 mm | MountPress-Fit | ||||
 | WE-CMBNC Common Mode Power Line Choke Nanocrystalline, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMBNC Common Mode Power Line Choke Nanocrystalline | – | – | – | – | – | – | – | – | VersionTHT | Rated Current32 A | Inductance0.9 mH | DC Resistance1.1 mΩ | Rated Voltage300 V (AC) | Insulation Test Voltage2100 V (AC) | MaterialNanocrystalline | Length37 mm | Width23 mm | Height34 mm | MountTHT | ||||
 | WE-TI Radial Leaded Wire Wound Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | Saturation Current @ 10%0.41 A | Self Resonant Frequency2.7 MHz | VersionHeat Shrinking Tube | Rated Current0.29 A | Inductance1 mH | DC Resistance6000 mΩ | – | – | – | Length8.5 mm | Width8.5 mm | Height5.5 mm | MountTHT |