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IS31LT3354 Datasheet 40v Led Driver

Manufacturer: Lumissil

Overview: IS31LT3354 40V LED DRIVER WITH EXTERNAL SWITCH September 2011.

Datasheet Details

Part number IS31LT3354
Manufacturer Lumissil
File Size 410.63 KB
Description 40V LED DRIVER
Datasheet IS31LT3354-Lumissil.pdf

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.

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
ISSI Logo IS31LT3354 40V LED DRIVER ISSI

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IS31LT3354 Distributor