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IC-Hersteller ISSI

ISSI IS31LT3354 | Demoboard IS31LT3354

IS31LT3354 Evaluation Board Guide

Details

TopologieAbwärtswandler
Eingangsspannung6-40 V
Schaltfrequenz1000 kHz
Ausgang 12 A
IC-Revision1.0

Beschreibung

The IS31LT3354 is a continuous mode inductivestep-down converter, designed for driving a single LEDor multiple series connected LEDs efficiently from avoltage source higher than the required LED voltage.The device operates from an input supply between 6Vand 40V and provides an externally adjustable outputcurrent of up to 2A or even higher, which is determinedby the external MOSFET and inductor

Eigenschaften

 Simple low parts count

  • Wide input voltage range: 6V to 40V
  • Output Current only limited by external componentselection
  • High efficiency (up to 98% )
  • Typical 1200:1 dimming ratio
  • Typical 5% output current accuracy
  • Single pin on/off and brightness control using DCvoltage or PWM
  • Up to 1MHz switching frequency
  • Inherent open-circuit LED protection
  • Thermal shutdown protection circuitry

Typische Anwendungen

  • Automotive lighting
  • Illuminated sign
  • Low voltage industrial lighting
  • LED back-up lighting
  • Low voltage halogen replacement LEDs

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
BauformVersion Muster
744770147SPEC
8 Dateien WE-PD SMT-Speicherdrossel 47 2.7 3 76 100 7.9 1280 Standard
Artikel Nr. Daten­blatt Simu­lation
744770147SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
BauformVersion Muster