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Texas Instruments UCC28880 | Demoboard PMP10175
Universal AC Input, 5V/500mA DC output, Non-isolated Flyback Converter Reference Design
Overview
| Topology | Flyback Converter |
| Input voltage | 90-275 V |
| Output 1 | 5 V / 0.5 A |
| IC revision | A |
Description
This design demonstrates the use of UCC28880 high-voltage switcher to design an Offline Non-Isolated Flyback converter that can supply greater than 100mA output current. Using direct resistor-divider feedback, this design delivers a well-regulated 5V/500mA output with minimal component count.
Features
- UCC28880 based Non-Isolated Flyback converter
- Design delivers >100mA output current
- 5V output, regulated by direct resistor divider feedback network
77% efficiency at 2.5W/5V/500mA
- Tightly regulated 5V output (<1.5%, at 25C) using direct resistor divider feedback
- Short-circuit withstand capability of 3 seconds
- This design is tested and includes test results and CAD files
Remarks:L1=1mH And Transormer T1 Used
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IR (A) | RDC max. (Ω) | fres (MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 750315313 | SPEC | 4 files | Active i| Production is active. Expected lifetime: >10 years. | MID-OLTI Offline Flyback Transformers for Texas Instruments | 71 - 265 V (AC) | 5 | 0.4 | – | – | 50 | 10 | 20:1 | 150 | 1875 | 13.46 | 17.75 | 12.7 | SMT | EP13 | – | – | – | – | ||
| 750315314 | SPEC | 4 files | Active i| Production is active. Expected lifetime: >10 years. | MID-OLTI Offline Flyback Transformers for Texas Instruments | 71 - 265 V (AC) | 12 | 0.03 | 3.3 | 0.4 | 50 | 10 | 30:2.38:1 | 150 | 1875 | 13.46 | 17.75 | 12.7 | SMT | EP13 | – | – | – | – | ||
 | 7447462102 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | 1 | – | 270 | – | 6 | 6 | 8.5 | THT | 5075 | 0.25 | 6 | 2.3 | Heat Shrinking Tube |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IR (A) | RDC max. (Ω) | fres (MHz) | Version | Samples |
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