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IC-Hersteller Allegro Microsystems

Allegro Microsystems A4450

Buck-Boost Controller with Integrated Buck MOSFET

Details

TopologieAbwärts- und Aufwärtswandler
Eingangsspannung3-36 V
Schaltfrequenz1800-2200 kHz
Ausgang 18 V / 1 A

Beschreibung

The A4450 is a power management IC that can implementeither a buck or buck-boost regulator to efficiently convertautomotive battery voltages into a tightly regulated voltageAllegro / A4450 / 8V-2MHz/1A / Buck Boost

Eigenschaften

Wide operating range of 3 to 36 VIN, 40 VIN maximum,covers automotive stop/start, cold crank, double battery,and load dump

  • Regulated output can range from 3 to 8 V at up to 1 A DC
  • Adjustable PWM switching frequency:250 kHz to 2.2 MHz
  • PWM frequency can be synchronized to external clock:250 kHz to 2.4 MHz
  • Frequency dithering helps reduce EMI/EMC
  • Undervoltage protection
  • Pin-to-pin and pin-to-ground tolerant at every pin
  • Thermal shutdown protection
  • Operating junction temperature range −40°C to 150°C

Typische Anwendungen

  • Infotainment
  • Control Modules
  • Instrument Clusters

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster
74437368100SPEC
8 Dateien WE-LHMI SMT Speicherdrossel 10 7 7.9 16.8 27 30 12 SMT
Artikel Nr. Daten­blatt Simu­lation
74437368100SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster