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Texas Instruments UCC28740 | Demoboard PMP31140
Offline supercapacitor backup power supply with passive cell balancing reference design
Details
| Topologie | Sperrwandler |
| Eingangsspannung | 195-480 V |
| IC-Revision | B |
Beschreibung
This reference design introduces an offline single-stage supercapacitor charger. Isolated constant-voltage constant-current flyback controller UCC28740 charges three supercapacitors in series directly from a wide input (195 VAC to 480 VAC). The supercapacitor output voltage is limited to 6.5 V.
Eigenschaften
- Resonant-ring valley-switching operation
- Super capacitor voltage limit of 6.5 V
- Wide input voltage range of 195 VAC to 480 VAC
- Output over-voltage and over-current protection
- Complete tested design with available design files and test report
Typische Anwendungen
- Polyphase electricity meter
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IR(A) | ISAT,10%(A) | RDC max.(Ω) | fres(MHz) | Version | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Raster(mm) | Ø D(mm) | L(mm) | Verpackung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TI Tonneninduktivität, 330 µH, 0.6 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TI Tonneninduktivität | Induktivität330 µH | Nennstrom0.6 A | Sättigungsstrom 11 A | Gleichstromwiderstand1.2 Ω | Eigenresonanzfrequenz3.9 MHz | VersionSchrumpfschlauch | – | – | – | – | – | – | – | – | Länge9.5 mm | – | ||||
 | WCAP-ATG8 Aluminium-Elektrolytkondensatoren, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-ATG8 Aluminium-Elektrolytkondensatoren | – | – | – | – | – | – | Kapazität1000 µF | Nennspannung50 V (DC) | Endurance 2000 | Rippelstrom1485 mA | Leckstrom500 µA | Verlustfaktor10 % | Raster5 mm | Durchmesser13 mm | Länge25 mm | VerpackungAmmopack | ||||
750319952 | Offline Transformer, –, – | Simulation– | Downloads– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Produktserie Offline Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |