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Texas Instruments UCC28742 | Demoboard PMP31193
3-Phase Input Valley Switching Flyback With Two Outputs Reference Design
Overview
| Topology | Flyback Converter |
| Input voltage | 332-459 V |
| Output 1 | 23 V / 1 A |
| IC revision | 1 |
Description
This reference design uses the UCC28742 flyback controller to generate two outputs (23 V at 1.0 A, 5.0 V at 0.15 A) from a 3-phase input. The UCC28742 uses an optical coupler to regulate the output and to improve transient response. The valley-switching technique reduces switching losses and keeps the efficiency high
Typical applications
- water heater
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Mount | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Pitch(mm) | Ø D(mm) | L(mm) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TIS Radial Leaded Wire Wound Inductor, 2200 µH, 0.31 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TIS Radial Leaded Wire Wound Inductor | Inductance2200 µH | Rated Current0.31 A | Saturation Current0.46 A | DC Resistance5700 mΩ | Self Resonant Frequency0.74 MHz | MountTHT | – | – | – | – | – | – | – | – | Length11 mm | – | ||||
 | WCAP-ATG5 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | Capacitance470 µF | Rated Voltage35 V (DC) | Endurance 2000 | Ripple Current520 mA | Leakage Current164.5 µA | Dissipation Factor12 % | Pitch5 mm | Diameter10 mm | Length16 mm | PackagingAmmopack | ||||
 | WCAP-ATLL Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATLL Aluminum Electrolytic Capacitors | – | – | – | – | – | – | Capacitance470 µF | Rated Voltage35 V (DC) | Endurance 6000 | Ripple Current1302 mA | Leakage Current164.5 µA | Dissipation Factor12 % | Pitch5 mm | Diameter10 mm | Length20 mm | PackagingAmmopack |