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Overview
| Topology | Power Factor Correction |
| Input voltage | 90-265 V |
Description
This combination IC integrates power factor correction (PFC) and quasi-resonant flyback functionality necessary to implement a compact and highly efficient Switched Mode Power Supply for an adapter application.The PFC stage exhibits near-unity power factor while operating in a Critical Conduction Mode (CrM) with a maximum frequency clamp. The circuit incorporates all the features necessary for building a robust and compact PFC stage while minimizing the number of external components.The quasi-resonant current-mode flyback stage features a proprietary valley-lockout circuitry, ensuring stable valley switching. This system works down to the 4th valley and toggles to a frequency foldback mode with a minimum frequency clamp beyond the 4th valley to eliminate audible noise. Skip mode operation allows excellent efficiency in light load conditions while consuming very low standby power consumption.
Features
Remark: Test-Result & BOM PDF are added
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-CMB Common Mode Power Line Choke, 0.5 A, 20 mH | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | Rated Current0.5 A | Inductance20 mH | DC Resistance540 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length17.5 mm | Width13 mm | Height22 mm | MountTHT | ||||
 | WE-CMB Common Mode Power Line Choke, 1.5 A, 4 mH | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | Rated Current1.5 A | Inductance4 mH | DC Resistance140 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length15.8 mm | Width7.8 mm | Height18 mm | MountTHT | ||||
 | WE-FI Leaded Toroidal Line Choke, 2.5 A, 0.3 mH | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FI Leaded Toroidal Line Choke | Rated Current2.5 A | Inductance0.3 mH | DC Resistance150 mΩ | – | – | – | Length21 mm | Width11.2 mm | – | MountTHT | |||
 | 750313054 | Transformer, –, 0.5 mH | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | – | Inductance0.5 mH | – | – | Insulation Test Voltage4000 V (AC) | – | Length34 mm | Width37.34 mm | Height24.13 mm | MountTHT | |||
 | 750313048 | Inductor, –, 0.39 mH | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Inductor | – | Inductance0.39 mH | – | – | Insulation Test Voltage1500 V (AC) | – | Length26.16 mm | Width26.16 mm | Height19.05 mm | MountTHT |