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LED-Shunt-Schutzkomponenten (LSPs)

LED Shunt Protectors (LSPs)
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Zusammenfassung

Die Festkörperbeleuchtungsleuchten in LED-Beleuchtungsanwendungen bestehen häufig aus langen Reihen mit mehreren in Serie geschalteten LEDs, die über eine Konstantstromquelle mit relativ hohem Spannungsbereich versorgt werden.

Diese Konfiguration hat mehrere Vorteile:

  • Zur Vereinfachung des Stromversorgungsdesigns können mehrere LEDs in Serie angeordnet werden.
  • Die Hochspannung-Schwachstrom-Versorgung bietet eine erhöhte Effizienz.
  • Modulares Konzept ermöglicht die einfache Skalierung, beispielsweise mit 1-W-LEDs – aus mehreren Reihen mit 8 1-W-LEDs können einfach 16-W-, 24-W- oder 32-W-Ausführungen zusammengestellt werden.
  • Bei einer LED-Straßenleuchte kommen sechs Reihen mit je 15 LEDs, also insgesamt 90 LEDs, zum Einsatz.


Das LSP-Produkt ist darauf ausgelegt, Ausfälle durch eine unterbrochene LED-Kette zu verhindern. Fällt eine LED aus, erlischt eine vollständige LED-Kette, sodass die gesamte Beleuchtung unbrauchbar oder in ihrer Funktion deutlich eingeschränkt wird. Dies hat Rücksendungen und Reparatureinsätze zur Folge.

Zur Erfüllung der Energy-Star® Richtlinien müssen LED-Beleuchtungskörper:

  • eine Garantie von 3 Jahren haben;
  • >70 % Neulichtleistung für 35 Tsd. Stunden bieten (Wohnbereich: 25 Tsd. Stunden).


Während schwache LED-Ketten auf Zener-Dioden setzen können, würden leistungsstarke LEDs sehr große und teure Zener-Dioden benötigen. Mit einer LSP-Vorrichtung von Bourns® kann sichergestellt werden, dass die übrigen LEDs einer Reihe weiterhin funktionieren, wenn eine LED ausfällt. Aktive LSP-Vorrichtungen verbrauchen weniger Strom als die LED verbraucht hat.

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Serie Datenblatt Bild Typ Periodische Spitzensperrspannung, Symbol: DRM/Einheit: V Minimaler Haltestrom bei IT = 1 A, Symbol: IT/Einheit: mA Maximale Durchlassspannung bei IT = 1 A, Symbol: VT/Einheit: V Absolute Grenzwerte MDB Ingenieurwesen Design Dateien
LSP0600 LSP0600 LSP_part LED Shunt Protector 6.0 5 1.2 Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) SMB
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LSP0600 LSP0600 SMA LED Shunt Protector 6.0 5 1.2 Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) SMA
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LSP0900 LSP0900 LSP_part LED Shunt Protector 9.0 5 1.2 Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) SMB
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LSP0900 LSP0900 SMA LED Shunt Protector 9.0 5 1.2 Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) SMA
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LSP1300 LSP1300 LSP_part LED Shunt Protector 13.0 5 1.2 Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) SMB
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LSP1300 LSP1300 SMA LED Shunt Protector 13.0 5 1.2 Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) SMA
Downloads
LSP1800 LSP1800 LSP_part LED Shunt Protector 18.0 5 1.2 Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) SMB
Downloads
LSP1800 LSP1800 SMA LED Shunt Protector 18.0 5 1.2 Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) SMA
Downloads
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Schutz für Hochgeschwindigkeits-KommunikationsanschlüssePDF843,57 KB28 Mai, 2015 Download
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Mit einem Sternchen markierte Felder sind Pflichtfelder
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