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LT3492 - Triple Output LED Driver

Description

The LT®3492 is a triple output DC/DC converter designed to operate as a constant-current source and is ideal for driving LEDs.

The LT3492 works in buck, boost or buckboost mode.

Features

  • n n n n n n n n LT3492 Triple Output LED Driver with 3000:1 PWM Dimming.

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Full PDF Text Transcription

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FEATURES n n n n n n n n LT3492 Triple Output LED Driver with 3000:1 PWM Dimming DESCRIPTION The LT®3492 is a triple output DC/DC converter designed to operate as a constant-current source and is ideal for driving LEDs. The LT3492 works in buck, boost or buckboost mode. The LT3492 uses a fixed frequency, current mode architecture resulting in stable operation over a wide range of supply and output voltages. A frequency adjust pin allows the user to program switching frequency between 330kHz and 2.1MHz to optimize efficiency and external component size. The external PWM input provides 3000:1 LED dimming on each channel. Each of the three channels has a built-in gate driver to drive an external LED-disconnect P-channel MOSFET, allowing high dimming range.
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