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MIC3289 - 1.2MHz PWM White LED Driver

Description

The MIC3289 is a PWM boost-switching regulator that is optimized for constant-current white LED driver applications.

Features

  • an internal Schottky diode, allowing an efficient DC/DC solution that requires only 4 external components. The MIC3289 allows for a single wire simple digital interface to control the dimming over 16 steps with a log scale to give better resolution at the lower currents to better match the sensitivity of the human eye The feedback voltage of the MIC3289 is only 250mV, allowing high efficiency while retaining excellent accuracy for the white LED current. The MIC3289 implements a constant frequenc.

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Datasheet preview – MIC3289

Datasheet Details

Part number MIC3289
Manufacturer Micrel Semiconductor
File Size 394.24 KB
Description 1.2MHz PWM White LED Driver
Datasheet download datasheet MIC3289 Datasheet
Additional preview pages of the MIC3289 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com MIC3289 1.2MHz PWM White LED Driver with Internal Schottky Diode and True 1-Wire Digital Control PRELIMINARY INFORMATION General Description The MIC3289 is a PWM boost-switching regulator that is optimized for constant-current white LED driver applications. The MIC3289 features an internal Schottky diode, allowing an efficient DC/DC solution that requires only 4 external components. The MIC3289 allows for a single wire simple digital interface to control the dimming over 16 steps with a log scale to give better resolution at the lower currents to better match the sensitivity of the human eye The feedback voltage of the MIC3289 is only 250mV, allowing high efficiency while retaining excellent accuracy for the white LED current.
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