| Topology | LLC Resonant Converter |
| Input voltage | 85-265 V |
| Switching frequency | 35-1000 kHz |
| Output 1 | 28 V / 10 A |
| IC revision | 001 |
This compact, high efficiency, 24V DC, 150W nominal, 240W peak output at 230VAC reference design is targeted for industrial AC/DC power supplies. The circuit consists of a frontend transition mode (TrM) power factor correction(PFC) circuit based on the UCC28056, followed by a robust LLC stage for an isolated DC/DC converter based on the UCC256301. For high efficiency needs, synchronous rectification is done with the UCC24624. This design does not need an additional auxiliary power supply to meet no-load consumption. The design enables 94% peak efficiency and allows the system to work without forced cooling. This design has both constant current(CC) and constant voltage(CV) feedback loop which is suitable for battery charger application.
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Pitch (mm) | Packaging | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | 890324025039 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTX2 Film Capacitors | Across the mains | 470 nF | X2 | 220 | 0.1 | 21.28 GΩ | 15 | Bulk | – | – | – | 275 | – | – | 18 | 8 | 14 | Boxed THT | ||
![]() | 744821201 | SPEC | 11 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | 2 | 1 | 45 | 250 | 1500 | MnZn | 15 | 7.8 | 18 | THT | ||
![]() | 744823210 | SPEC | 11 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | 2 | 10 | 125 | 250 | 1500 | MnZn | 23 | 13.8 | 26.5 | THT | ||
![]() | 7447060 | SPEC | – | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FI Leaded Toroidal Line Choke | – | – | – | – | – | – | – | – | 2.5 | 0.3 | 150 | – | – | – | 21 | 11.2 | – | THT | |
| 750344060 | SPEC | – | – | Active i| Production is active. Expected lifetime: >10 years. | Power Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
![]() | 890324025039 | SPEC | |
![]() | 744821201 | SPEC | |
![]() | 744823210 | SPEC | |
![]() | 7447060 | SPEC | – |
| 750344060 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Pitch (mm) | Packaging | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
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