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Texas Instruments UCC28780 | Demoboard TIDA-01622
30-W/in3, 94% Efficiency, 65-W USB Type-C PD AC/DC Adapter Reference Design
Overview
| Topology | Flyback Converter |
| Input voltage | 85-265 V |
| Output 1 | 20 V / 3.25 A |
| IC revision | A |
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 (30W/in³)
- Low no load power consumption (60mW)
- Low light load input power (0.5W), @20Vout/0.25W output
- Fully compatible with USB PD 2.0 standard, with 5V/3A, 9V/3A, 15V/3A, 20V/3.25A output
- Active-clamp flyback + SR topology
- Small size (62mm26.8mm20mm)
Typical applications
- Smart phone, Laptop
- Industrial AC/DC
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | fswitch (kHz) | NPRI : NSEC : NAUX | ISAT (A) | Size | fres (MHz) | Version | Application | Interface Type | Type | Gender | Pins (pcs) | IR (A) | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 750343803 | SPEC | 5 files | MID-OLTI Offline Flyback Transformers for Texas Instruments | 85 - 265 V (AC) | 20 | 3.25 | 70 | 450 | 5.5 : 1 : 3 | – | RM8 | – | – | – | – | – | – | – | – | – | Tray | – | 75 | – | – | 3750 | – | 21.59 | 21.59 | 17.27 | THT | ||
 | 744822120 | SPEC | 10 files | WE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | Type S | – | THT | – | – | – | – | 4 | 0.5 | – | – | 0.5 | 20000 | 540 | 250 | 1500 | MnZn | 17.5 | 13 | 22 | THT | ||
 | 7447462010 | SPEC | 7 files | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | 8 | 5075 | 140 | Heat Shrinking Tube | – | – | – | – | – | – | – | – | 8.5 | 1 | 15 | – | – | – | 6 | 6 | 8.5 | THT | ||
 | 632723300011 | SPEC | – | 6 files | WR-COM USB 3.1 Type C Receptacle Horizontal THR / SMT | – | – | – | – | – | – | – | – | – | – | USB 3.1 | Type C | Horizontal | Receptacle | 24 | – | 20 | Tape and Reel | 5 | – | – | – | – | – | – | – | – | THR |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 750343803 | SPEC | |
| 744822120 | SPEC | |
| 7447462010 | SPEC | |
| 632723300011 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | fswitch (kHz) | NPRI : NSEC : NAUX | ISAT (A) | Size | fres (MHz) | Version | Application | Interface Type | Type | Gender | Pins (pcs) | IR (A) | 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 |
|---|