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Texas Instruments UCC28780 | Demoboard TIDA-01622
30-W/in3, 92% Efficiency, 65-W USB Type-C PD AC/DC Adapter Reference Design
Overview
| Topology | Flyback Converter |
| Input voltage | 85-265 V |
| Switching frequency | 1000 kHz |
| Output 1 | 20 V / 3 A |
| IC revision | E1 |
Description
This fully tested, USB power delivery reference design is a high efficiency, high power density, AC/DC adapter solution with a wide input voltage range (85 - 265VAC) for laptop adapters and smartphone charger applications. It adopts active-clamp-flyback topology controlled by TI’s newest ACF controller UCC28780 as the mainly power supply stage. This design uses TPS25740B, TI’s PD source controller, to achieve a full PD 2.0 function. The design achieves a peak efficiency of 92% at a very high switching frequency. The design’s power density is increased to 30 W/in3, which is much higher than traditional solutions.
Features
- High Efficiency (92% Peak Value)
- High Power Density (30 W/in³)
- Low Power Consumption at No Load (60 mW)
- Low Input Power at Light Load (0.5 W) at 20-VOUT,0.25-W Output
- Fully Compatible With USB PD 2.0 Standard With 5-V/3-A, 9-V/3-A, 15-V/3-A, 20-V/3.25-A Output
- Active-Clamp Flyback + SR Topology
- Small Size (62 mm × 26.8 mm × 20 mm)
Typical applications
- Consumer AC/DC / Industrial AC/DC
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Interface Type | Type | Gender | Pins | PCB Thickness(mm) | Working Voltage(V (DC)) | Packaging | IR(A) | L(µH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCI SMT Flat Wire High Current Inductor, 29.9 A, 14 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Performance Rated Current29.9 A | Saturation Current @ 10%14 A | Saturation Current @ 30%25 A | DC Resistance1.25 mΩ | Self Resonant Frequency507 MHz | – | – | – | Pins2 | – | – | – | – | Inductance0.22 µH | DC Resistance1.375 mΩ | – | – | MaterialSuperflux | Length5.5 mm | Width5.3 mm | Height4 mm | MountSMT | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | Pins4 | – | – | – | Rated Current1.5 A | Inductance4000 µH | DC Resistance140 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length15.8 mm | Width7.8 mm | Height18 mm | MountTHT | ||||
 | WR-USB Type C Connectors, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Type C Connectors | – | – | – | – | – | Interface TypeType C | TypeHorizontal | GenderReceptacle | Pins24 | PCB Thickness1.6 mm | Working Voltage48 V (DC) | PackagingTape and Reel | Rated Current5 A | – | – | – | – | – | – | – | – | MountTHR |