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MAX20090B - High-Brightness LED Controller

This page provides the datasheet information for the MAX20090B, a member of the MAX20090 High-Brightness LED Controller family.

Description

The MAX20090 is a single-channel high-brightness LED (HB LED) driver for automotive front-light applications such as high beam, low beam, daytime running lights (DRLs), turn indicators, fog lights, and other LED lights.

Features

  • High-Brightness LED Driver with a Wide Input Range Saves Space and Cost Through Integration.
  • +5V to +65V Wide Input Voltage Range.
  • +65V Maximum Boost Output Voltage.
  • ICTRL Pin for Analog Dimming.
  • Integrated High-Side Current-Sense Amplifier.
  • 200Hz On-Board Ramp Simplifies PWM Dimming.
  • Flexible Architecture Enables Easy Design Optimization.
  • Configurable as Boost, High-Side Buck, SEPIC, Buck-Boost, Zeta, and Ćuk.
  • Programmabl.

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Datasheet preview – MAX20090B

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Full PDF Text Transcription

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MAX20090/MAX20090B EVALUATION KIT AVAILABLE Automotive High-Voltage, High-Brightness LED Controller General Description The MAX20090 is a single-channel high-brightness LED (HB LED) driver for automotive front-light applications such as high beam, low beam, daytime running lights (DRLs), turn indicators, fog lights, and other LED lights. It can take an input voltage from 5V to 65V and drive a string of LEDs with a maximum output voltage of 65V. The device senses output current at the high side of the LED string. High-side current sensing is required to protect for shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, SEPIC mode, or buckboost-mode configurations.
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