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MP2489DQ - Step Down White LED Driver

This page provides the datasheet information for the MP2489DQ, a member of the MP2489 Step Down White LED Driver family.

Description

The MP2489 is a high efficiency step-down converter designed in continuous current mode for driving the high brightness Light Emitting Diodes (LED) from wide input voltage 6V

60V.

Features

  • Internal 65V MOSFET.
  • Wide 6V to 60V Input Range.
  • ā‰„1A Output Current.
  • High Efficiency (>95%).
  • Hysteresis Control.
  • PWM & Analog Dimming.
  • 1000:1 PWM Dimming Resolution.
  • Thermal Shutdown.
  • Inherent Open LED Protection.
  • Short LED Protection.
  • Available in TSOT23-5, QFN6(3x 3mm) and SOIC8E Packages.

📥 Download Datasheet

Datasheet preview ā€“ MP2489DQ

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Full PDF Text Transcription

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The Future of Analog IC Technology DESCRIPTION The MP2489 is a high efficiency step-down converter designed in continuous current mode for driving the high brightness Light Emitting Diodes (LED) from wide input voltage 6Vā€“60V. The MP2489 employs hysteretic control architecture to regulate a high accuracy LED current, which is measured through an external high-side current sensing resistor. Moreover, this control scheme provides optimized circuit stabilization and very quick response time without the loop compensation. Its low 202mV average feedback voltage reduces power loss and improves the converter efficiency. The MP2489 implements PWM and analog dimming together with DIM pin. The MP2489 includes thermal overload protection preventing damage in the event of an output overload.
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