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IS31LT3352 - 40V LED DRIVER

Datasheet Summary

Description

The IS31LT3352 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.

Features

  • Simple low parts count.
  • Internal 40V power switch.
  • Wide input voltage range: 6V to 40V.
  • Up to 750mA output current.
  • High efficiency (up to 95%).
  • 1200：1 dimming ratio.
  • Typical 5% 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 to protect IC itself.
  • Temperature compensation to protect LEDs.

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Datasheet Details

Part number IS31LT3352
Manufacturer Lumissil
File Size 805.91 KB
Description 40V LED DRIVER
Datasheet download datasheet IS31LT3352 Datasheet
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IS31LT3352 40V LED DRIVER WITH TEMPERATURE COMPENSATION June 2022 GENERAL DESCRIPTION The IS31LT3352 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 chip operates from an input supply between 6V and 40V and provides an externally adjustable output current of up to 750mA. Depending upon supply voltage and external components, this can provide up to 30 watts of output power. The IS31LT3352 includes an integrated output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current.
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