| Topologie | Aufwärtswandler |
| Eingangsspannung | 3.5-6 V |
| Schaltfrequenz | 1000-2500 kHz |
| Ausgang 1 | 8 V / 2 A |
A high-voltage boost controller, such as the MAX16990 or the MAX16992, the latter of which has 2.2MHzswitching frequency capabilities, has many applications in the automotive field. Two uses are as a preboostregulator to sustain system voltage during cold-/warm-crank or as a power supply for high-brightness LEDs.In this application note, we begin by examining how to realize an automotive high-voltage step-up DC-DC powersupply with the MAX16990/MAX16992 and how to select the external components to achieve best systemperformance. Afterwards, we present a reference design for its preboost application.
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, 0.47 µH, 31.9 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-HCI SMT-Hochstrominduktivität | Induktivität0.47 µH | Performance Nennstrom31.9 A | Sättigungsstrom 19 A | Sättigungsstrom @ 30%20 A | Gleichstromwiderstand1.35 mΩ | Eigenresonanzfrequenz235 MHz | MaterialSuperflux |