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Overview
| Topology | Half-Bridge Converter symmetrical isolated |
| Input voltage | 200-260 V |
| Output 1 | 30 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 | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Pins | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012006023 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | 100 pF | ±5% | 16 | 0603 | -55 °C up to +125 °C | 1000 | 10 GΩ | NP0 Class I | 1.6 | 0.8 | 0.4 | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
 | 61300111121 | SPEC | – | 6 files | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 2.54 | – | – | 1 | Single | – | Pin Header | Straight | 3 | Bag | |
| 750318984 | SPEC | – | – | Half-Bridge Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 750318974 | SPEC | – | – | Power Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012006023 | SPEC | |
| 61300111121 | SPEC | – |
| 750318984 | SPEC | – | |
| 750318974 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | Pins | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
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