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Texas Instruments TPS40170 | Demoboard PMP6867
9V - 32V input to -28V/1.5A negative output buck-boost LED current regulator
Details
| Topologie | Abwärts- und Aufwärtswandler |
| Eingangsspannung | 9-32 V |
| Ausgang 1 | -28 V / 1.5 A |
| IC-Revision | C |
Beschreibung
This reference design uses the TPS40170 sync buck controller in a buck-boost converter to regulate the current in a series string of 6 to 8 LEDs (-28V) at up to 1.5A. Efficiency is greater than 93%. The output current can be adjusted with an external control voltage.
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCI SMT-Hochstrominduktivität, 33 µH, 8.7 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-HCI SMT-Hochstrominduktivität | Induktivität33 µH | Performance Nennstrom8.7 A | Sättigungsstrom 18 A | Sättigungsstrom @ 30%9 A | Gleichstromwiderstand21.7 mΩ | Eigenresonanzfrequenz9.5 MHz | MaterialMnZn |