IC-Hersteller Texas Instruments

IC-Hersteller (103)

Texas Instruments LM25122 | Demoboard TIDA-01553

Automotive Off-battery VCM Supporting 2.5-V Cold Crank Profile Reference Design

Details

TopologieAufwärtswandler
Eingangsspannung2.5-40 V
Schaltfrequenz400-500 kHz
Ausgang 17 V
IC-RevisionB

Beschreibung

This reference design is a high-current, wide input voltage range circuit that can handle engine cold crank profile down to 2.5V. The dual-output voltages are 5V and 3.3V that support up to 10A for each output. The design is suitable for an automotive off-battery infotainment application that needs to support a very stringent starting profile down to 2.5V.

Eigenschaften

  • Wide input voltage range of 2.5V to 40V
  • Dual high-current synchronous outputs: 5V, up to 10A; 3.3V, up to 10A
  • Continuous operation during engine crank transient down to 2.5V
  • Reverse battery protection with zero IQ smart diode controller
  • Minimized AM radio band interference

Typische Anwendungen

  • Voltage Conditioning Module
  • Aftermarket Head Unit

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Simu­lation
Downloads
Status
Produktserie
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Drahttype
Muster
WE-HCF SMT-Hochstrominduktivität, 0.7 µH, 54.7 A
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Induktivität0.7 µH
Performance Nennstrom54.7 A
Sättigungsstrom 163 A
Sättigungsstrom @ 30%75 A
Gleichstromwiderstand0.91 mΩ
Eigenresonanzfrequenz65 MHz
DrahttypeFlach