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Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 5-37 V |
| Ausgang 1 | 6 V |
| IC-Revision | 1 |
Beschreibung
The A81850 is a synchronous boost/buck/buck-boost controller with programmable outputs and a SPI communication interface capable of 80 W per channel. The device integrates two half-bridge drivers able to create a dual-channel synchronous boost or buck converter or a single-channel synchronous buck-boost converter.
Eigenschaften
- Two-channel synchronous boost or buck controllers orsingle-channel buck-boost controller
- Wide VIN range: 5 to 37 V operating, 40 V transient
- Output voltage ranges:□ Boost mode: 16 to 65 V, with 2% accuracy□ Buck mode: 3.3 to 6 V, with 1.5% accuracy□ Buck-boost mode: 5 to 22 V, with 2% accuracy
- Programmable output voltage□ 8-bit resolution in boost and buck-boost mode□ 3.3 V, 4.5 V, 5 V, 5.5 V, and 6 V in buck mode
- Fixed-frequency operation, 200 to 450 kHz
- Array mode supports in-parallel operation of up to twounits (four phases): Units can be synchronized
Typische Anwendungen
- Electronic Power Steering, Information Systems and Entertainment
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | RDC max.(mΩ) | fres(MHz) | Montageart | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | Z(mΩ) | ILeak(µA) | DF(%) | Ø D(mm) | L(mm) | Verpackung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-XHMI SMT Speicherdrossel, 15 µH, 14.7 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-XHMI SMT Speicherdrossel | Induktivität15 µH | Performance Nennstrom14.7 A | Sättigungsstrom @ 30%26.1 A | Gleichstromwiderstand10.5 mΩ | Gleichstromwiderstand11.55 mΩ | Eigenresonanzfrequenz8 MHz | MontageartSMT | – | – | – | – | – | – | – | – | Länge16.4 mm | – | ||||
 | WCAP-ASLI Aluminium-Elektrolytkondensatoren, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-ASLI Aluminium-Elektrolytkondensatoren | – | – | – | – | – | – | MontageartV-Chip SMT | Kapazität100 µF | Nennspannung50 V (DC) | Endurance 2000 | Rippelstrom350 mA | Impedanz460 mΩ | Leckstrom50 µA | Verlustfaktor12 % | Durchmesser8 mm | Länge10.5 mm | Verpackung15" Tape & Reel | ||||
| WCAP-ASLI Aluminium-Elektrolytkondensatoren, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-ASLI Aluminium-Elektrolytkondensatoren | – | – | – | – | – | – | MontageartV-Chip SMT | Kapazität1000 µF | Nennspannung10 V (DC) | Endurance 2000 | Rippelstrom740 mA | Impedanz150 mΩ | Leckstrom100 µA | Verlustfaktor19 % | Durchmesser10 mm | Länge10.5 mm | Verpackung15" Tape & Reel |