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LM3424 - Constant Current N-Channel Controller

Datasheet Summary

Description

The LM3424 is a versatile high voltage N-channel MosFET controller for LED drivers .

It can be easily configured in buck, boost, buck-boost and SEPIC topologies.

In addition, the LM3424 includes a thermal foldback feature for temperature management of the LEDs.

Features

  • include slope compensation, softstart, over-voltage and under-voltage lock-out, cycle-by-cycle current limit, and thermal shutdown. Features.
  • VIN range from 4.5V to 75V High-side adjustable current sense 2Ω, 1A Peak MosFET gate driver Input under-voltage and output over-voltage protection PWM and analog dimming Cycle-by-cycle current limit Programmable slope compensation Programmable, synchronizable switching frequency Progr.

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Datasheet Details

Part number LM3424
Manufacturer National Semiconductor
File Size 1.37 MB
Description Constant Current N-Channel Controller
Datasheet download datasheet LM3424 Datasheet
Additional preview pages of the LM3424 datasheet.

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LM3424 Constant Current N-Channel Controller with Thermal Foldback for Driving LEDs www.DataSheet4U.com August 22, 2009 LM3424 Constant Current N-Channel Controller with Thermal Foldback for Driving LEDs General Description The LM3424 is a versatile high voltage N-channel MosFET controller for LED drivers . It can be easily configured in buck, boost, buck-boost and SEPIC topologies. In addition, the LM3424 includes a thermal foldback feature for temperature management of the LEDs. This flexibility, along with an input voltage rating of 75V, makes the LM3424 ideal for illuminating LEDs in a very diverse, large family of applications. Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible.
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