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LM3464A Datasheet Led Driver

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM3464,LM3464A LM3464/LM3464A LED Driver with Dynamic Headroom Control and Thermal Control Interfaces .DataSheet.net/ Literature Number: SNVS652E Datasheet pdf - http://..co.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LM3464/64A is a 4-channel high voltage current regulator that provides a simple solution for LED lighting applications.

The LM3464/64A provides four individual current regulator channels and works in conjunction with external Nchannel MOSFETs and sense resistors to give accurate driving current for every LED string.

Additionally, the Dynamic Headroom Control (DHC) output can be interfaced to the external power supply to adjust the LED supply voltage to the lowest level that is adequate to maintain all the string currents in regulation, yielding the optimal overall efficiency.

Key Features

  • include VIN under-voltage lock-out, LED open/short circuit and over-temperature fault signaling to the system controller. Features.
  • Wide input voltage range.
  • 12V-80V (LM3464) 12V.
  • 95V (LM3464A) Dynamic Headroom Control ensures maximum efficiency 4 output channels with individual current regulation High channel to channel accuracy Digital PWM/Analog dimming control interface Resistor programmable dimming frequency & min.

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