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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 | L(µH) | IR(A) | ISAT,10%(A) | RDC max.(Ω) | fres(MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TI Radial Leaded Wire Wound Inductor, 1000 µH, 0.25 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance1000 µH | Rated Current0.25 A | Saturation Current @ 10%0.27 A | DC Resistance6 Ω | Self Resonant Frequency2.3 MHz | VersionHeat Shrinking Tube | ||||
 | 750315313 | Offline Transformer, 10000 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Offline Transformer | Inductance10000 µH | – | – | – | – | – | |||
| 750315314 | Offline Transformer, 10000 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Offline Transformer | Inductance10000 µH | – | – | – | – | – |