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IS31LT3354 Datasheet 40V LED DRIVER

Manufacturer: ISSI (now Infineon)

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General Description

The IS31LT3354 is a continuous mode inductive step-down converter, designed for driving a single LED or multiple series connected LEDs efficiently from a voltage source higher than the required LED voltage.

The device operates from an input supply between 6V and 40V and provides an externally adjustable output current of up to 2A or even higher, which is determined by the external MOSFET and inductor.

The IS31LT3354 includes a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current.

Overview

IS31LT3354 40V LED DRIVER WITH EXTERNAL SWITCH GENERAL.

Key Features

  • Simple low parts count.
  • Wide input voltage range: 6V to 40V.
  • Output Current only limited by external component selection.
  • High efficiency (up to 98% ).
  • Typical 1200:1 dimming ratio.
  • Typical 3% output current accuracy.
  • Single pin on/off and brightness control using DC voltage or PWM.
  • Up to 1MHz switching frequency.
  • Inherent open-circuit LED protection.
  • Thermal shutdown protection circuitry.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
Lumissil Logo IS31LT3354 40V LED DRIVER Lumissil

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