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LM3429 - N-Channel Controller

Datasheet Summary

Description

The LM3429 is a versatile high voltage LED driver controller.

Features

  • include: precision reference, logic compatible DIM input suitable for fast PWM dimming, cycle-by-cycle current limit, and thermal shutdown. The LM3429 comes in a low profile, thermally efficient TSSOP EP 14-lead package. Features.
  • VIN range from 4.5V to 75V 2% Internal reference voltage (1.235V) Current sense voltage adjustable from 20 mV High-side current sensing 2Ω MOSFET gate driver Dimming MOSFET gate driver Input.

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LM3429 N-Channel Controller for Constant Current LED Drivers www.DataSheet4U.com PRELIMINARY LM3429 April 30, 2009 N-Channel Controller for Constant Current LED Drivers General Description The LM3429 is a versatile high voltage LED driver controller. With the capability to be configured in a Buck, Boost, BuckBoost (Flyback), or SEPIC topology, and an input and output operating voltage rating of 75V, the LM3429 is ideal for illuminating LEDs in a very diverse, large family of applications. Adjustable high-side current sense with a typical sense voltage of 100 mV allows for tight regulation of the LED current with the highest efficiency possible. Output LED current regulation is based on peak current-mode control with predictive Off-Time Control.
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