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Overview
| Topology | Power Factor Correction |
| Input voltage | 96-134 V |
| Output 1 | 240 V / 13.3 A |
| IC revision | C |
Description
This is a compact, 30-V DC, 400-W reference design for avionics applications, accepting main frequencies between 400 Hz and 800 Hz. This design consists of a front-end, two-phase interleaved transition mode (TM) power factor correction (PFC) based on UCC28064A. This minimizes the PFC inductor size and reduces EMI filter requirements. The DC/DC is implemented by employing HB-LLC stage, using UCC256404. For efficiency improvement, synchronous rectification is used at secondary side with FETs driven by UCC24612.
Features
- Overall efficiency of 92.5% at full load with peak efficiency > 93%
- High power factor > 0.99, meets PFC regulations and current THD for DO-160 avionics requirements
- ZCS avoidance feature and OVP sensing feature in LLC controller improves robustness and protects systems from overcurrent, short circuit and overvoltage to ensure safety
- Small PCB form factor of 160 mm by 80 mm by 30 mm
Typical applications
- Full authority digital engine control (FADEC), Standalone avionics PFC
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | Type | G(mm) | Working Voltage(V (AC)) | Operating Temperature | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-PHD Pin Header - Single, 1, Straight | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins1 | TypeStraight | – | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | Rated Current3 A | – | – | – | – | – | Length2.54 mm | – | – | MountTHT | |||
 | WE-CMBNC Common Mode Power Line Choke Nanocrystalline, 4, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMBNC Common Mode Power Line Choke Nanocrystalline | Pins4 | – | Pin length5 mm | – | Operating Temperature -55 °C up to +125 °C | Rated Current15 A | Inductance1 mH | DC Resistance3.2 mΩ | Rated Voltage300 V (AC) | Insulation Test Voltage2100 V (AC) | MaterialNanocrystalline | Length24 mm | Width17 mm | Height25 mm | MountTHT | ||||
 | WE-FI Leaded Toroidal Line Choke, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FI Leaded Toroidal Line Choke | – | – | Pin length15 mm | – | Operating Temperature -40 °C up to +105 °C | Rated Current6.1 A | Inductance0.15 mH | DC Resistance45 mΩ | – | – | – | Length27.5 mm | Width13.6 mm | – | MountTHT | |||
750318973 | PFC Inductor, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series PFC Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |