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Texas Instruments UCC28722 | Demoboard TIDA-00628
Low-Cost CVCC Flyback Controller With Primary-Side Regulation for Bipolar Power Device
Overview
| Topology | Flyback Converter |
| Input voltage | 85-440 V |
| Output 1 | 15 V / 0.5 A |
| IC revision | B |
Description
http://www.ti.com/tool/TIDA-00628TIDA-00628 is a 15V/6.5W non-isolated, single output, AC/DC Flyback power supply that is capable of operating from wide input voltage ranging from 85Vac to 440Vac. This design demonstrates 2 key features (1) the elimination of snubber components enabled by use of a high-voltage bipolar transistor and (2) simplified transformer design with no need for an auxilliary winding. Low system parts count and built in advanced protection features result in a cost-effective solution for electricity meters and industrial designs.
Features
Input voltage up to 440Vrms, 15V/6.5W outputNo snubber - reduces BoM count and PCB areaBJT switch to reduce system costNon Isolated output allows simplified transformer with no auxilliary windingTypical efficiency of 80% at 230V, 6.5WCompliant with Conducted Emissions: CISPR 22, Class B
Typical applications
- Bias supplies in 3 phase systems
- Industrial power supplies
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744743102 | SPEC | 8 files | WE-TI Radial Leaded Wire Wound Inductor | 1000 | 0.42 | 0.55 | 2.5 | 1.6 | Standard | ||
| 750315761 | SPEC | – | – | Flyback Transformer | – | – | – | – | – | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Version | Samples |
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