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Texas Instruments LM5175 | Demoboard PMP10592

LED PWM Dimming Reference Design Using High Efficiency Buck-Boost Converter

Details

TopologieAbwärts- und Aufwärtswandler
Eingangsspannung4.5-42 V
Ausgang 11.1 A
IC-RevisionA

Beschreibung

The reference design contains a complete LM5175 based buck-boost converter and a driver and FET for PWM dimming. This design has been optimized for the 12-V automotive supply rail with support for cold-crank profile based on ISO 7637-2 pulse 4. The design provides 1.1-A constant current output to a string of 8 LEDs.

Eigenschaften

  • Wide VIN 4.5V-42V
  • Drive 8 LEDs in series
  • 1-A constant current loop
  • PWM dimming driver/fet
  • 0-100% PWM dimming range
  • Meets ISO 7637-2 Pulse 4 (cold-crank)

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Muster
74435571500SPEC
8 Dateien WE-HCI SMT-Hochstrominduktivität 15 14.1 10.75 14 9 14 MnZn
Artikel Nr. Daten­blatt Simu­lation
74435571500SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Muster