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Texas Instruments UCC28064A | Demoboard TIDA-010015
94.5% Efficiency, 500W industrial AC-DC reference design
Overview
| Topology | Power Factor Correction |
| Input voltage | 85-265 V |
| Output 1 | 24 V / 21 A |
| IC revision | E1 |
Description
This reference design is a compact, high efficiency, 24-V DC, 500-W reference design for industrial AC/DC power supplies. This design consists of a front-end, two-phase interleaved transition mode (TM) power factor correction (PFC) based on the UCC28064A. This minimizes the PFC inductor size and reduces EMI filter requirements. The DC-DC is implemented using the HB-LLC stage implemented using TI's UCC256301 device. For efficiency improvement, synchronous rectification is used at secondary which uses the UCC24612.
Features
- Overall efficiency of 94.5% at full load with peak efficiency > 95%
- Up to 330-W operation without forced cooling
- High power factor > 0.99 and meets PFC regulations and current THD as per IEC 61000-3- 2 Class A
- Meets requirements of conducted emissions standard (EN55011 Class B)
- 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 160 mm × 80 mm × 35 mm PCB form factor
Typical applications
- Medical PSU
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | IR(A) | L(µH) | RDC max.(Ω) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-FI Leaded Toroidal Line Choke, 6.1 A, 150 µH | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FI Leaded Toroidal Line Choke | Rated Current6.1 A | Inductance150 µH | DC Resistance0.045 Ω | – | – | – | Length27.5 mm | Width13.6 mm | – | MountTHT | |||
 | WE-CMBNC Common Mode Power Line Choke Nanocrystalline, 15 A, 1000 µH | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMBNC Common Mode Power Line Choke Nanocrystalline | Rated Current15 A | Inductance1000 µH | DC Resistance0.0032 Ω | Rated Voltage300 V (AC) | Insulation Test Voltage2100 V (AC) | MaterialNanocrystalline | Length24 mm | Width17 mm | Height25 mm | MountTHT |